/* ============================================
   VIRTUAL MAIL GUIDE - Ultra Premium Design
   email36.com - Luxury Navy & Gold Theme
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Playfair+Display:wght@700;800&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Navy Palette */
    --navy-900: #0a0f1a;
    --navy-800: #111827;
    --navy-700: #1a2332;
    --navy-600: #1e293b;
    --navy-500: #334155;
    --navy-400: #475569;

    /* Gold Palette */
    --gold-500: #FFD700;
    --gold-400: #FFE44D;
    --gold-300: #FFEC80;
    --gold-gradient: linear-gradient(135deg, #FFD700 0%, #FFA500 50%, #FF8C00 100%);

    /* Accent Colors */
    --emerald: #10B981;
    --emerald-light: #34D399;
    --sapphire: #3B82F6;
    --sapphire-light: #60A5FA;
    --ruby: #EF4444;
    --amethyst: #8B5CF6;

    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-400: #9CA3AF;
    --gray-600: #4B5563;

    /* Effects */
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 30px 60px rgba(0, 0, 0, 0.2);
    --shadow-gold: 0 10px 40px rgba(255, 215, 0, 0.25);
    --shadow-glow: 0 0 60px rgba(255, 215, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--navy-900);
    color: var(--white);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================
   ANIMATED BACKGROUND
   ============================================ */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% -20%, rgba(255, 215, 0, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 40% 60% at 50% 50%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* Animated particles */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(2px 2px at 20% 30%, rgba(255, 215, 0, 0.3), transparent),
        radial-gradient(2px 2px at 40% 70%, rgba(255, 215, 0, 0.2), transparent),
        radial-gradient(1px 1px at 60% 20%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(2px 2px at 80% 50%, rgba(255, 215, 0, 0.2), transparent),
        radial-gradient(1px 1px at 90% 80%, rgba(255, 255, 255, 0.2), transparent);
    background-size: 200% 200%;
    animation: particles 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes particles {
    0%, 100% { background-position: 0% 0%; }
    25% { background-position: 100% 0%; }
    50% { background-position: 100% 100%; }
    75% { background-position: 0% 100%; }
}

.app {
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   HEADER - Compact & Clean
   ============================================ */
.header {
    background: linear-gradient(180deg, rgba(26, 35, 50, 0.98) 0%, rgba(17, 24, 39, 0.95) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.6rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 215, 0, 0.15);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.3s;
}

.back-btn:hover {
    background: rgba(255, 215, 0, 0.15);
    border-color: rgba(255, 215, 0, 0.4);
    color: var(--gold-400);
}

.back-btn .arrow {
    font-size: 1rem;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
    background: white;
    padding: 8px 12px;
    border-radius: 10px;
}

.spacer {
    width: 90px;
}

/* ============================================
   HERO - Spectacular Design
   ============================================ */
.hero {
    background: linear-gradient(165deg, var(--navy-800) 0%, var(--navy-700) 40%, var(--navy-600) 100%);
    padding: 2.5rem 24px 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Bottom fade */
.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to top, var(--navy-900), transparent);
    pointer-events: none;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 0.8rem;
    position: relative;
    z-index: 1;
    letter-spacing: -0.02em;
}

.hero h1 .highlight {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero > p {
    color: var(--gray-400);
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 1;
    font-weight: 500;
}

/* Phone Cards */
.phone-numbers {
    display: flex;
    gap: 1.2rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.phone-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    backdrop-filter: blur(10px);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 16px;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.phone-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gold-gradient);
    opacity: 0;
    transition: opacity 0.4s;
}

.phone-card:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: rgba(255, 215, 0, 0.5);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(255, 215, 0, 0.2);
}

.phone-card:hover::before {
    opacity: 0.1;
}

.phone-flag {
    font-family: 'Noto Color Emoji', sans-serif;
    font-size: 1.8rem;
    line-height: 1;
}

.phone-details {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.phone-details .label {
    font-size: 0.75rem;
    color: var(--gold-400);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

.phone-details .num {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 0.5px;
}

/* ============================================
   TABS NAVIGATION - Floating Pills
   ============================================ */
.tabs-nav {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding: 1.5rem 20px;
    background: linear-gradient(180deg, var(--navy-900) 0%, rgba(10, 15, 26, 0.98) 100%);
    position: sticky;
    top: 52px;
    z-index: 999;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.tabs-nav::-webkit-scrollbar {
    display: none;
}

.tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 0.8rem 1.3rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--gray-400);
    font-family: inherit;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.tab::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gold-gradient);
    opacity: 0;
    transition: opacity 0.3s;
}

.tab:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
    border-color: rgba(255, 215, 0, 0.3);
    transform: translateY(-2px);
}

.tab.active {
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-color: transparent;
    box-shadow: var(--shadow-gold);
    transform: translateY(-2px);
}

.tab.active::before {
    display: none;
}

.tab-icon {
    font-size: 1.4rem;
    transition: transform 0.3s;
    position: relative;
    z-index: 1;
}

.tab:hover .tab-icon {
    transform: scale(1.15);
}

.tab.active .tab-icon {
    transform: scale(1.1);
}

.tab-text {
    font-size: 0.8rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
    letter-spacing: 0.3px;
}

/* ============================================
   TAB CONTENTS
   ============================================ */
.tab-contents {
    min-height: 60vh;
    padding: 0 16px 3rem;
}

.tab-content {
    display: none;
    padding: 3rem 0;
    animation: fadeSlide 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeSlide {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Content Cards */
.tab-content > .container {
    background: linear-gradient(165deg, rgba(30, 41, 59, 0.8) 0%, rgba(17, 24, 39, 0.9) 100%);
    backdrop-filter: blur(20px);
    border-radius: 28px;
    padding: 3rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow:
        var(--shadow-xl),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.tab-content h2 {
    text-align: center;
    font-family: 'Playfair Display', serif;
    font-size: 2.2rem;
    color: var(--white);
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.tab-content h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gold-gradient);
    margin: 1rem auto 0;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(255, 215, 0, 0.4);
}

.tab-content .intro {
    text-align: center;
    color: var(--gray-400);
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.tab-content .intro strong {
    color: var(--gold-400);
    font-weight: 700;
}

.tab-content h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin: 2.5rem 0 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-content h3::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--gold-gradient);
    border-radius: 4px;
}

/* ============================================
   FEATURE GRID - Glass Cards
   ============================================ */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
    margin: 2rem 0;
}

.feature-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gold-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 215, 0, 0.3);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(255, 215, 0, 0.1);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-card h4 {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.6;
}

/* ============================================
   MENU GRID - Premium Keys
   ============================================ */
.menu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.menu-card {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    padding: 1.4rem;
    border-radius: 18px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    overflow: hidden;
}

.menu-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gold-gradient);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.3s;
}

.menu-card:hover {
    transform: translateX(8px);
    border-color: rgba(255, 215, 0, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.menu-card:hover::after {
    transform: scaleY(1);
}

/* Card variants */
.menu-card.gold {
    background: linear-gradient(145deg, rgba(255, 215, 0, 0.15), rgba(255, 165, 0, 0.08));
    border-color: rgba(255, 215, 0, 0.3);
}

.menu-card.blue {
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.15), rgba(96, 165, 250, 0.08));
    border-color: rgba(59, 130, 246, 0.3);
}

.menu-card.blue .key {
    background: linear-gradient(135deg, var(--sapphire), var(--sapphire-light));
}

.menu-card.green {
    background: linear-gradient(145deg, rgba(16, 185, 129, 0.15), rgba(52, 211, 153, 0.08));
    border-color: rgba(16, 185, 129, 0.3);
}

.menu-card.green .key {
    background: linear-gradient(135deg, var(--emerald), var(--emerald-light));
}

.menu-card.full-width {
    grid-column: span 2;
}

.menu-card .key {
    width: 56px;
    height: 56px;
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 800;
    flex-shrink: 0;
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
}

.menu-card:hover .key {
    transform: scale(1.1) rotate(-3deg);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.4);
}

.menu-card .info h3 {
    font-size: 1.05rem;
    color: var(--white);
    margin-bottom: 0.2rem;
    font-weight: 700;
}

.menu-card .info p {
    font-size: 0.85rem;
    color: var(--gray-400);
}

.menu-card .badge {
    display: inline-block;
    background: var(--gold-gradient);
    color: var(--navy-900);
    font-size: 0.65rem;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-weight: 800;
    margin-top: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   STEPS TIMELINE - Elegant Flow
   ============================================ */
.steps-timeline {
    position: relative;
    padding-left: 50px;
    margin: 2rem 0;
}

.steps-timeline::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 10px;
    bottom: 10px;
    width: 3px;
    background: linear-gradient(to bottom, var(--gold-500), var(--sapphire), var(--emerald));
    border-radius: 3px;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.step {
    position: relative;
    padding: 1rem 0;
    padding-left: 2rem;
    opacity: 0;
    animation: stepIn 0.6s ease forwards;
}

.step:nth-child(1) { animation-delay: 0.1s; }
.step:nth-child(2) { animation-delay: 0.2s; }
.step:nth-child(3) { animation-delay: 0.3s; }
.step:nth-child(4) { animation-delay: 0.4s; }
.step:nth-child(5) { animation-delay: 0.5s; }
.step:nth-child(6) { animation-delay: 0.6s; }

@keyframes stepIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.step-num {
    position: absolute;
    left: -50px;
    width: 42px;
    height: 42px;
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
    border: 4px solid var(--navy-900);
    box-shadow:
        0 6px 20px rgba(255, 215, 0, 0.4),
        0 0 0 4px rgba(255, 215, 0, 0.2);
    transition: all 0.3s;
}

.step:hover .step-num {
    transform: scale(1.15);
    box-shadow:
        0 8px 30px rgba(255, 215, 0, 0.5),
        0 0 0 6px rgba(255, 215, 0, 0.3);
}

.step.final .step-num {
    background: linear-gradient(135deg, var(--emerald), var(--emerald-light));
    box-shadow:
        0 6px 20px rgba(16, 185, 129, 0.4),
        0 0 0 4px rgba(16, 185, 129, 0.2);
}

.step-content {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    padding: 1.3rem 1.6rem;
    border-radius: 16px;
    transition: all 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.step:hover .step-content {
    transform: translateX(8px);
    border-color: rgba(255, 215, 0, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.step-content h4 {
    font-size: 1.05rem;
    color: var(--white);
    margin-bottom: 0.3rem;
    font-weight: 700;
}

.step-content p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.6;
}

.step.final .step-content {
    background: linear-gradient(145deg, rgba(16, 185, 129, 0.15), rgba(52, 211, 153, 0.08));
    border-color: rgba(16, 185, 129, 0.3);
}

.step.final .step-content h4 {
    color: var(--emerald-light);
}

.key-inline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--gold-gradient);
    color: var(--navy-900);
    padding: 0.15rem 0.5rem;
    border-radius: 6px;
    font-weight: 800;
    font-size: 0.8rem;
    margin: 0 0.15rem;
    box-shadow: 0 2px 6px rgba(255, 215, 0, 0.3);
}

/* ============================================
   KEYPAD VISUAL - 3D Effect
   ============================================ */
.keypad-visual {
    background: linear-gradient(165deg, var(--navy-700), var(--navy-800));
    padding: 2rem;
    border-radius: 24px;
    max-width: 340px;
    margin: 0 auto 2rem;
    box-shadow:
        0 30px 60px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.keypad-visual::before {
    content: 'CONTROLS';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gold-gradient);
    color: var(--navy-900);
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    letter-spacing: 2px;
}

.keypad-row {
    display: flex;
    gap: 0.7rem;
    margin-bottom: 0.7rem;
}

.keypad-row:last-child {
    margin-bottom: 0;
}

.kp-key {
    flex: 1;
    aspect-ratio: 1;
    background: var(--navy-500);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 1.4rem;
    font-weight: 800;
    transition: all 0.2s;
    border: 1px solid rgba(255, 255, 255, 0.05);
    cursor: default;
}

.kp-key span {
    font-size: 0.55rem;
    font-weight: 700;
    margin-top: 3px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kp-key.nav {
    background: linear-gradient(135deg, var(--sapphire), var(--sapphire-light));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}
.kp-key.time {
    background: var(--gold-gradient);
    color: var(--navy-900);
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
}
.kp-key.action {
    background: linear-gradient(135deg, var(--gray-400), var(--gray-200));
    color: var(--navy-700);
}
.kp-key.pause {
    background: linear-gradient(135deg, var(--emerald), var(--emerald-light));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}
.kp-key.exit {
    background: linear-gradient(135deg, var(--ruby), #F87171);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
}
.kp-key.confirm {
    background: linear-gradient(135deg, var(--navy-600), var(--navy-500));
    color: var(--gold-400);
    border: 2px solid var(--gold-500);
}
.kp-key.empty {
    background: var(--navy-600);
    color: var(--navy-400);
}

.legend {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--gray-400);
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: 4px;
}

.dot.nav { background: linear-gradient(135deg, var(--sapphire), var(--sapphire-light)); }
.dot.time { background: var(--gold-gradient); }
.dot.pause { background: linear-gradient(135deg, var(--emerald), var(--emerald-light)); }
.dot.exit { background: linear-gradient(135deg, var(--ruby), #F87171); }

/* ============================================
   PHONE DEVICE - Controls Section
   ============================================ */
.phone-device {
    max-width: 380px;
    margin: 0 auto 3rem;
    background: linear-gradient(165deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow:
        0 50px 100px rgba(0, 0, 0, 0.5),
        0 0 0 2px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.phone-screen {
    background: linear-gradient(180deg, var(--navy-700) 0%, var(--navy-800) 100%);
    border-radius: 28px 28px 0 0;
    padding: 1.5rem;
    margin-bottom: 2px;
}

.screen-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.screen-icon {
    font-size: 1.3rem;
}

.screen-progress {
    margin-top: 0.5rem;
}

.progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    width: 30%;
    height: 100%;
    background: var(--gold-gradient);
    border-radius: 3px;
    animation: progressPulse 2s ease-in-out infinite;
}

@keyframes progressPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.progress-time {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--gray-400);
    font-weight: 600;
    font-family: monospace;
}

.phone-keypad {
    background: linear-gradient(180deg, #1f1f1f 0%, #151515 100%);
    border-radius: 0 0 28px 28px;
    padding: 1.2rem;
}

.keypad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.kpad-btn {
    aspect-ratio: 1;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(145deg, #3a3a3a, #2a2a2a);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.kpad-btn::before {
    content: attr(data-info);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--navy-700);
    color: var(--white);
    padding: 0.5rem 0.8rem;
    border-radius: 8px;
    font-size: 0.7rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s;
    z-index: 10;
    border: 1px solid rgba(255, 215, 0, 0.3);
}

.kpad-btn:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-8px);
}

.kpad-btn:hover {
    transform: scale(1.05);
}

.kpad-btn:active {
    transform: scale(0.95);
}

.kpad-num {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
}

.kpad-label {
    font-size: 0.55rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-400);
}

/* Keypad button colors */
.kpad-btn.rewind,
.kpad-btn.forward {
    background: linear-gradient(145deg, #4a6fa5, #3a5a8a);
}
.kpad-btn.rewind .kpad-label,
.kpad-btn.forward .kpad-label {
    color: #a8c8ff;
}

.kpad-btn.rewind-lg,
.kpad-btn.forward-lg {
    background: linear-gradient(145deg, #c9a227, #a8861f);
}
.kpad-btn.rewind-lg .kpad-num,
.kpad-btn.forward-lg .kpad-num {
    color: var(--navy-900);
}
.kpad-btn.rewind-lg .kpad-label,
.kpad-btn.forward-lg .kpad-label {
    color: var(--navy-700);
}

.kpad-btn.nav {
    background: linear-gradient(145deg, #5a5a5a, #4a4a4a);
}
.kpad-btn.nav .kpad-label {
    color: #bbb;
}

.kpad-btn.pause {
    background: linear-gradient(145deg, #2d8a5e, #237548);
}
.kpad-btn.pause .kpad-label {
    color: #a8ffc8;
}

.kpad-btn.speed {
    background: linear-gradient(145deg, #7c5aad, #6a4a9a);
}
.kpad-btn.speed .kpad-label {
    color: #d8c8ff;
}

.kpad-btn.back {
    background: linear-gradient(145deg, #a84a4a, #8a3a3a);
}
.kpad-btn.back .kpad-label {
    color: #ffc8c8;
}

.kpad-btn.repeat {
    background: linear-gradient(145deg, #4a7a9a, #3a6a8a);
}
.kpad-btn.repeat .kpad-label {
    color: #c8e8ff;
}

.kpad-btn.confirm {
    background: linear-gradient(145deg, #c9a227, #a8861f);
}
.kpad-btn.confirm .kpad-num {
    color: var(--navy-900);
}
.kpad-btn.confirm .kpad-label {
    color: var(--navy-700);
}

.kpad-btn.empty {
    background: linear-gradient(145deg, #2a2a2a, #202020);
    cursor: default;
}
.kpad-btn.empty .kpad-num,
.kpad-btn.empty .kpad-label {
    color: #444;
}
.kpad-btn.empty:hover {
    transform: none;
}

/* Controls Legend */
.controls-legend {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.legend-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border-radius: 14px;
    padding: 1.2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s;
}

.legend-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 215, 0, 0.2);
}

.legend-keys {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
    color: var(--gray-400);
}

.legend-keys span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    font-weight: 800;
    font-size: 1rem;
}

.legend-card p {
    font-size: 0.8rem;
    color: var(--gray-400);
    margin: 0;
}

/* Legend card colors */
.legend-card.time .legend-keys span {
    background: var(--gold-gradient);
    color: var(--navy-900);
}

.legend-card.nav .legend-keys span {
    background: linear-gradient(135deg, #5a5a5a, #4a4a4a);
    color: var(--white);
}

.legend-card.pause .legend-keys span {
    background: linear-gradient(135deg, var(--emerald), var(--emerald-light));
    color: var(--white);
}

.legend-card.system .legend-keys span {
    background: linear-gradient(135deg, var(--navy-500), var(--navy-400));
    color: var(--gold-400);
    border: 2px solid var(--gold-500);
}

/* ============================================
   SIMPLE CONTROLS - Clean Design
   ============================================ */
.controls-simple {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
}

.control-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    padding: 1.5rem 2rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.control-card:hover {
    transform: translateX(8px);
    border-color: rgba(255, 215, 0, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.control-key {
    width: 64px;
    height: 64px;
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 800;
    flex-shrink: 0;
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.35);
    transition: transform 0.3s, box-shadow 0.3s;
}

.control-card:hover .control-key {
    transform: scale(1.08) rotate(-3deg);
    box-shadow: 0 12px 35px rgba(255, 215, 0, 0.45);
}

.control-card.replay .control-key {
    background: linear-gradient(135deg, var(--sapphire), var(--sapphire-light));
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.35);
}

.control-card.prev .control-key {
    background: linear-gradient(135deg, #6366f1, #818cf8);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.35);
}

.control-card.next .control-key {
    background: linear-gradient(135deg, var(--emerald), var(--emerald-light));
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.35);
}

.control-card.back .control-key {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.35);
}

.control-card.skip .control-key {
    background: var(--gold-gradient);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.35);
}

.control-info h4 {
    font-size: 1.15rem;
    color: var(--white);
    margin: 0 0 0.3rem 0;
    font-weight: 700;
}

.control-info p {
    font-size: 0.95rem;
    color: var(--gray-400);
    margin: 0;
    line-height: 1.5;
}

/* ============================================
   TIP BOXES - Glass Style
   ============================================ */
.tip-box {
    display: flex;
    align-items: flex-start;
    gap: 1.2rem;
    background: linear-gradient(145deg, rgba(255, 215, 0, 0.1), rgba(255, 165, 0, 0.05));
    padding: 1.5rem 1.8rem;
    border-radius: 18px;
    border: 1px solid rgba(255, 215, 0, 0.2);
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.tip-box::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gold-gradient);
}

.tip-box.green {
    background: linear-gradient(145deg, rgba(16, 185, 129, 0.1), rgba(52, 211, 153, 0.05));
    border-color: rgba(16, 185, 129, 0.2);
}

.tip-box.green::before {
    background: linear-gradient(135deg, var(--emerald), var(--emerald-light));
}

.tip-box.blue {
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.1), rgba(96, 165, 250, 0.05));
    border-color: rgba(59, 130, 246, 0.2);
}

.tip-box.blue::before {
    background: linear-gradient(135deg, var(--sapphire), var(--sapphire-light));
}

.tip-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.tip-box p {
    font-size: 0.95rem;
    color: var(--gray-200);
    line-height: 1.6;
}

.tip-box p strong {
    color: var(--gold-400);
    font-weight: 700;
}

.tip-box.green p strong {
    color: var(--emerald-light);
}

.tip-box.blue p strong {
    color: var(--sapphire-light);
}

/* ============================================
   LANGUAGE BADGES
   ============================================ */
.language-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.lang-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(145deg, rgba(255, 215, 0, 0.15), rgba(255, 165, 0, 0.08));
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    transition: all 0.3s;
}

.lang-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 215, 0, 0.2);
    border-color: var(--gold-500);
}

.lang-key {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 800;
}

.lang-badge.muted {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    opacity: 0.7;
}

.lang-badge.muted .lang-key {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

/* ============================================
   FEATURE SECTIONS - Enhanced
   ============================================ */
.feature-section {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    transition: all 0.3s;
}

.feature-section:hover {
    border-color: rgba(255, 215, 0, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.feature-section h3 {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 215, 0, 0.15);
}

.feature-section h4 {
    color: var(--gold-400);
    font-size: 1.1rem;
    margin: 1.5rem 0 0.8rem 0;
}

.reward-box {
    background: linear-gradient(145deg, rgba(255, 215, 0, 0.12), rgba(255, 165, 0, 0.05));
    border: 1px solid rgba(255, 215, 0, 0.25);
    border-radius: 16px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.reward-box h4 {
    color: var(--gold-400);
    margin: 0 0 1rem 0;
    font-size: 1.2rem;
}

.submenu {
    background: rgba(255, 255, 255, 0.03);
    border-left: 3px solid var(--gold-500);
    padding: 1rem 1.5rem;
    margin: 1rem 0;
    border-radius: 0 12px 12px 0;
}

.submenu p {
    margin: 0.4rem 0;
    font-size: 0.9rem;
    color: var(--gray-300);
}

.submenu-detail {
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.1), rgba(59, 130, 246, 0.03));
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.submenu-detail h4 {
    color: var(--sapphire-light);
    margin: 0 0 1rem 0;
}

/* T9 Table Styling */
.t9-table {
    max-width: 400px;
}

.t9-table td:first-child {
    text-align: center;
    width: 60px;
}

/* ============================================
   FAQ - Elegant Accordions
   ============================================ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.faq-item {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border-radius: 18px;
    padding: 1.5rem 1.8rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.faq-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gold-gradient);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.3s;
}

.faq-item:hover {
    transform: translateX(8px);
    border-color: rgba(255, 215, 0, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.faq-item:hover::before {
    transform: scaleY(1);
}

.faq-q {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.8rem;
    font-size: 1.05rem;
}

.q-icon {
    font-size: 1.2rem;
    width: 44px;
    height: 44px;
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.faq-a {
    color: var(--gray-400);
    font-size: 0.95rem;
    padding-left: 3.5rem;
    line-height: 1.7;
}

.faq-a strong {
    color: var(--emerald-light);
    font-weight: 700;
}

/* ============================================
   PRICING TABLE - Premium Design
   ============================================ */
.pricing-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.pricing-table th {
    background: var(--gold-gradient);
    color: var(--navy-900);
    padding: 1.2rem 1.5rem;
    text-align: left;
    font-weight: 800;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-table td {
    padding: 1.1rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.95rem;
    color: var(--gray-200);
}

.pricing-table tr:last-child td {
    border-bottom: none;
}

.pricing-table tr:hover td {
    background: rgba(255, 215, 0, 0.05);
}

.price-highlight {
    font-weight: 800;
    color: var(--gold-400);
    font-size: 1.1rem;
}

.plan-badge {
    display: inline-block;
    background: var(--gold-gradient);
    color: var(--navy-900);
    font-size: 0.6rem;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-weight: 800;
    margin-left: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    vertical-align: middle;
}

/* ============================================
   FOOTER - Compact & Clean
   ============================================ */
.footer {
    background: var(--navy-800);
    border-top: 1px solid rgba(255, 215, 0, 0.15);
    padding: 1.5rem 20px;
    text-align: center;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links-row {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-links-row a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.3s;
}

.footer-links-row a:hover {
    color: var(--gold-500);
}

.footer-copy {
    color: #666;
    font-size: 0.8rem;
    margin: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .hero {
        padding: 3rem 20px 4rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero > p {
        font-size: 1rem;
    }

    .phone-numbers {
        flex-direction: column;
        align-items: center;
    }

    .phone-card {
        width: 100%;
        max-width: 280px;
    }

    .tabs-nav {
        gap: 0.3rem;
        padding: 1rem 12px;
        top: 48px;
    }

    .control-card {
        padding: 1.2rem 1.5rem;
        gap: 1rem;
    }

    .control-key {
        width: 54px;
        height: 54px;
        font-size: 1.5rem;
    }

    .control-info h4 {
        font-size: 1.05rem;
    }

    .control-info p {
        font-size: 0.9rem;
    }

    .tab {
        padding: 0.6rem 1rem;
    }

    .tab-icon {
        font-size: 1.2rem;
    }

    .tab-text {
        font-size: 0.7rem;
    }

    .tab-content > .container {
        padding: 2rem 1.5rem;
        border-radius: 20px;
    }

    .tab-content h2 {
        font-size: 1.7rem;
    }

    .menu-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .menu-card.full-width {
        grid-column: span 1;
    }

    .steps-timeline {
        padding-left: 45px;
    }

    .step-num {
        left: -45px;
        width: 38px;
        height: 38px;
        font-size: 0.9rem;
    }

    .keypad-visual {
        max-width: 300px;
        padding: 1.5rem;
    }

    .kp-key {
        font-size: 1.2rem;
    }

    .spacer {
        display: none;
    }

    /* Phone device responsive */
    .phone-device {
        max-width: 320px;
        border-radius: 32px;
        padding: 10px;
    }

    .phone-screen {
        padding: 1.2rem;
        border-radius: 22px 22px 0 0;
    }

    .screen-header {
        font-size: 0.8rem;
    }

    .phone-keypad {
        padding: 1rem;
        border-radius: 0 0 22px 22px;
    }

    .keypad-grid {
        gap: 8px;
    }

    .kpad-btn {
        border-radius: 12px;
    }

    .kpad-num {
        font-size: 1.2rem;
    }

    .kpad-label {
        font-size: 0.5rem;
    }

    .controls-legend {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0.8rem 0;
    }

    .logo img {
        height: 40px;
    }

    .logo span {
        font-size: 1.2rem;
    }

    .tab-text {
        display: none;
    }

    .tab {
        padding: 0.7rem 1rem;
    }

    .tab-icon {
        font-size: 1.4rem;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .tab-content > .container {
        padding: 1.5rem 1rem;
    }

    .pricing-table {
        font-size: 0.85rem;
    }

    .pricing-table th,
    .pricing-table td {
        padding: 0.9rem 0.8rem;
    }

    .tip-box {
        flex-direction: column;
        gap: 0.8rem;
        padding: 1.2rem 1.4rem;
    }

    .faq-a {
        padding-left: 0;
        margin-top: 0.5rem;
    }

    .control-card {
        padding: 1rem 1.2rem;
        gap: 0.8rem;
        border-radius: 14px;
    }

    .control-key {
        width: 48px;
        height: 48px;
        font-size: 1.3rem;
        border-radius: 12px;
    }

    .control-info h4 {
        font-size: 0.95rem;
    }

    .control-info p {
        font-size: 0.85rem;
    }

    /* Phone device mobile */
    .phone-device {
        max-width: 280px;
    }

    .kpad-num {
        font-size: 1.1rem;
    }

    .kpad-label {
        font-size: 0.45rem;
    }

    .controls-legend {
        grid-template-columns: 1fr 1fr;
        gap: 0.6rem;
    }

    .legend-card {
        padding: 0.8rem;
    }

    .legend-keys span {
        width: 28px;
        height: 28px;
        font-size: 0.9rem;
    }
}

/* ============================================
   SUB-TABS - Features Section
   ============================================ */
.sub-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.sub-tab {
    padding: 0.7rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    color: var(--gray-400);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

.sub-tab:hover {
    background: rgba(255, 215, 0, 0.1);
    border-color: rgba(255, 215, 0, 0.3);
    color: var(--white);
}

.sub-tab.active {
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.sub-content {
    display: none;
    animation: fadeSlide 0.4s ease;
}

.sub-content.active {
    display: block;
}

/* ============================================
   MINI-MENU - Compact Options Display
   ============================================ */
.mini-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 1rem 0;
}

.mini-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    font-size: 0.85rem;
    color: var(--gray-300);
    transition: all 0.3s;
}

.mini-item:hover {
    background: rgba(255, 215, 0, 0.1);
    border-color: rgba(255, 215, 0, 0.3);
    transform: translateY(-2px);
}

.mini-item.highlight {
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0.1));
    border-color: rgba(59, 130, 246, 0.3);
    color: var(--sapphire-light);
}

/* ============================================
   T9 GRID - Phone Keyboard Visual
   ============================================ */
.t9-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.6rem;
    max-width: 320px;
    margin: 1.5rem auto;
}

.t9-key {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 0.5rem;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s;
}

.t9-key:hover {
    transform: scale(1.05);
    border-color: rgba(255, 215, 0, 0.3);
}

.t9-key span {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--white);
}

.t9-key small {
    font-size: 0.65rem;
    color: var(--gray-400);
    letter-spacing: 1px;
    margin-top: 2px;
}

.t9-key.special {
    background: linear-gradient(145deg, rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.05));
    border-color: rgba(139, 92, 246, 0.3);
}

.t9-key.special.gold {
    background: var(--gold-gradient);
}

.t9-key.special.gold span,
.t9-key.special.gold small {
    color: var(--navy-900);
}

/* ============================================
   TIPS GRID
   ============================================ */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.tip-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    transition: all 0.3s;
}

.tip-item:hover {
    border-color: rgba(255, 215, 0, 0.2);
    transform: translateX(4px);
}

.tip-emoji {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.tip-item div {
    font-size: 0.9rem;
    color: var(--gray-300);
    line-height: 1.5;
}

.tip-item strong {
    color: var(--gold-400);
}

/* ============================================
   HIGHLIGHT BADGE
   ============================================ */
.highlight-badge {
    display: inline-block;
    background: var(--gold-gradient);
    color: var(--navy-900);
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-weight: 800;
    margin-left: 0.5rem;
    vertical-align: middle;
}

/* ============================================
   REWARD HIGHLIGHTS
   ============================================ */
.reward-highlights {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.reward-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1.2rem;
    background: linear-gradient(145deg, rgba(255, 215, 0, 0.15), rgba(255, 215, 0, 0.05));
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 12px;
}

.reward-percent {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.reward-label {
    font-size: 0.85rem;
    color: var(--gray-300);
}

/* ============================================
   ACCENT SECTIONS
   ============================================ */
.feature-section.gold-accent {
    background: linear-gradient(145deg, rgba(255, 215, 0, 0.08), rgba(255, 215, 0, 0.02));
    border-color: rgba(255, 215, 0, 0.2);
}

.feature-section.gold-accent h3 {
    border-bottom-color: rgba(255, 215, 0, 0.3);
}

.feature-section.purple-accent {
    background: linear-gradient(145deg, rgba(139, 92, 246, 0.08), rgba(139, 92, 246, 0.02));
    border-color: rgba(139, 92, 246, 0.2);
}

.feature-section.purple-accent h3 {
    border-bottom-color: rgba(139, 92, 246, 0.3);
}

/* ============================================
   REFERENCE CARDS (Controls)
   ============================================ */
.ref-cards {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin: 1.5rem 0;
}

.ref-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 1.5rem;
    transition: all 0.3s;
}

.ref-card:hover {
    border-color: rgba(255, 215, 0, 0.2);
}

.ref-card h4 {
    color: var(--gold-400);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.ref-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.ref-grid span {
    font-size: 0.9rem;
    color: var(--gray-300);
}

.ref-grid span b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--gold-gradient);
    color: var(--navy-900);
    border-radius: 6px;
    font-size: 0.8rem;
    margin-right: 0.3rem;
}

.ref-grid.compact {
    gap: 1.5rem;
}

/* ============================================
   TWO COLUMNS LAYOUT
   ============================================ */
.two-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 1rem 0;
}

.two-cols h4 {
    color: var(--gold-400);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.two-cols p {
    font-size: 0.9rem;
    color: var(--gray-300);
    line-height: 1.6;
}

/* ============================================
   NUMBERED LIST COMPACT
   ============================================ */
.numbered-list.compact {
    padding-left: 1.5rem;
    margin: 1rem 0;
}

.numbered-list.compact li {
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
    color: var(--gray-300);
}

/* ============================================
   NOTE TEXT
   ============================================ */
.note {
    font-size: 0.85rem;
    color: var(--gray-400);
    margin-top: 0.5rem;
}

/* ============================================
   FEATURE LIST
   ============================================ */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.feature-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.6rem;
    color: var(--gray-300);
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--emerald);
    font-weight: bold;
}

/* ============================================
   NUMBERED LIST
   ============================================ */
.numbered-list {
    padding-left: 1.5rem;
    margin: 1rem 0;
}

.numbered-list li {
    margin-bottom: 0.6rem;
    color: var(--gray-300);
    font-size: 0.95rem;
}

.numbered-list li strong {
    color: var(--white);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 768px) {
    .t9-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 280px;
    }

    .tips-grid {
        grid-template-columns: 1fr;
    }

    .two-cols {
        grid-template-columns: 1fr;
    }

    .reward-highlights {
        flex-direction: column;
    }

    .sub-tabs {
        gap: 0.4rem;
    }

    .sub-tab {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .mini-menu {
        gap: 0.4rem;
    }

    .mini-item {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }

    .ref-grid {
        gap: 0.4rem 0.8rem;
    }

    .ref-grid span {
        font-size: 0.8rem;
    }
}

/* Print styles */
@media print {
    .header,
    .tabs-nav,
    body::before,
    body::after {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .tab-content {
        display: block !important;
    }
}