/* ============================================
   GLOBAL RESET & BASE STYLES
   ============================================ */
:root {
    --primary-color: #26c985;
    --secondary-color: #1fa871;
    --accent-color: #e91e63;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #fafafa 0%, #f0f4ff 50%, #fff1f0 100%);
    background-attachment: fixed;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 15px 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 20px;
    font-weight: bold;
    color: white;
    margin: 0;
}

.navbar {
    display: flex;
    list-style: none;
    gap: 25px;
}

.navbar a {
    color: white;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.navbar a:hover {
    border-bottom-color: white;
}

.nav-icon {
    display: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* Responsive Navigation */
@media (max-width: 768px) {
    .navbar {
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background-color: var(--primary-color);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .navbar.responsive {
        max-height: 500px;
    }

    .navbar a {
        padding: 15px 20px;
        border-radius: 0;
    }

    .nav-icon {
        display: block;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 248, 225, 0.95) 0%, rgba(255, 228, 181, 0.95) 100%),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="30" r="2" fill="rgba(255, 200, 0, 0.1)"/><circle cx="80" cy="70" r="2" fill="rgba(255, 200, 0, 0.1)"/><circle cx="50" cy="50" r="1.5" fill="rgba(255, 200, 0, 0.1)"/></svg>');
    padding: 40px 20px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 200, 0, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -100px;
    left: -100px;
    animation: float 8s ease-in-out infinite;
}

.hero-section::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(233, 30, 99, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    bottom: -50px;
    right: -50px;
    animation: float-reverse 10s ease-in-out infinite;
}

.circle {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffeb3b 0%, #ffd700 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 30px auto;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: pulse 2s ease-in-out infinite;
    position: relative;
    z-index: 2;
    box-shadow: 0 10px 40px rgba(255, 235, 59, 0.4),
                0 20px 60px rgba(255, 200, 0, 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 3px solid rgba(255, 255, 255, 0.5);
}

.circle:hover {
    transform: scale(1.12) translateY(-10px);
    box-shadow: 0 20px 60px rgba(255, 235, 59, 0.8),
                0 40px 100px rgba(255, 200, 0, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 1);
}

.circle:active {
    transform: scale(0.98) translateY(-5px);
}

.circle img {
    width: 75%;
    height: auto;
    transition: all 0.4s ease;
}

.circle:hover img {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 5px 10px rgba(0, 0, 0, 0.2));
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.03);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(30px);
    }
}

@keyframes float-reverse {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-30px);
    }
}

.hero-text {
    color: #c97b4e;
    font-size: clamp(24px, 6vw, 48px);
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    z-index: 2;
    animation: slideDown 0.8s ease;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: 1px;
}

.hero-section > p {
    position: relative;
    z-index: 2;
    font-size: 18px;
    color: #666;
    animation: slideDown 0.8s ease 0.2s backwards;
}

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

/* ============================================
   COUNTDOWN TIMER
   ============================================ */
.countdown-container {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 50px 30px;
    text-align: center;
    border-radius: 25px;
    margin: 40px 20px;
    box-shadow: 0 15px 50px rgba(233, 30, 99, 0.5),
                0 8px 25px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    transition: all 0.3s ease;
    animation: slideInUp 0.8s ease;
}

.countdown-container h2 {
    font-size: 28px;
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: fadeIn 0.8s ease 0.2s backwards;
}

.countdown-timer {
    font-size: clamp(28px, 6vw, 56px);
    font-weight: 900;
    animation: countdown-pulse 2s ease-in-out infinite;
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.3),
                 0 0 30px rgba(255, 255, 255, 0.2);
    letter-spacing: 2px;
    font-family: 'Courier New', monospace;
    line-height: 1.4;
}

@keyframes countdown-pulse {
    0%, 100% {
        transform: scale(1);
        text-shadow: 0 4px 15px rgba(0, 0, 0, 0.3),
                     0 0 30px rgba(255, 255, 255, 0.2);
    }
    50% {
        transform: scale(1.05);
        text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4),
                     0 0 40px rgba(255, 255, 255, 0.4);
    }
}

@keyframes color-change {
    0% { color: #ff6b9d; }
    20% { color: #ffd700; }
    40% { color: #00ffff; }
    60% { color: #ff69b4; }
    80% { color: #00ff00; }
    100% { color: #ff6b9d; }
}

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

/* ============================================
   SLOGANS
   ============================================ */
.slogan {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(240, 240, 250, 0.95) 100%);
    color: var(--primary-color);
    border-radius: 25px;
    width: 90%;
    max-width: 650px;
    margin: 30px auto;
    padding: 30px 25px;
    font-size: clamp(16px, 4vw, 24px);
    font-weight: 700;
    text-align: center;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08),
                0 10px 25px rgba(0, 0, 0, 0.05),
                0 4px 10px rgba(0, 0, 0, 0.03),
                inset 0 1px 0 rgba(255, 255, 255, 0.8);
    position: relative;
    border: 3px solid var(--secondary-color);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: slideInLeft 0.8s ease;
}

.slogan:hover {
    transform: translateY(-10px) scale(1.03);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15),
                0 15px 30px rgba(0, 0, 0, 0.1),
                0 8px 15px rgba(0, 0, 0, 0.08),
                inset 0 1px 0 rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.slogan:active {
    transform: translateY(-4px) scale(0.98);
}

.slogan::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.25) 50%, 
        transparent 100%);
    animation: sloganShimmer 4s infinite;
    pointer-events: none;
    border-radius: inherit;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes sloganShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.slogan::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.3) 0%, transparent 50%);
    border-radius: 25px;
    pointer-events: none;
}

.slogan-text {
    animation: side-move 6s infinite;
    position: relative;
    z-index: 1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.slogan-text.slog2 {
    animation: side-move 3s infinite;
}

.slogan-text.slog3 {
    animation: side-move 4.5s infinite;
}

.slogan-text.slog4 {
    animation: side-move 9s infinite;
}

@keyframes side-move {
    0%  { left: 0; }
    10% { left: 20%; }
    20% { left: 40%; }
    30% { left: 60%; }
    40% { left: 80%; }
    50% { left: 100%; }
    60% { left: 80%; }
    70% { left: 60%; }
    80% { left: 40%; }
    90% { left: 20%; }
    100% { left: 0; }
}

@keyframes crackerBurst {
    0% {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translate(var(--tx, 0), var(--ty, 0)) scale(0);
    }
}

.slogan-text {
    position: relative;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.content-section {
    margin: 50px 0;
}

.content-section h1 {
    font-size: clamp(28px, 7vw, 48px);
    color: var(--accent-color);
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(233, 30, 99, 0.2);
    animation: fadeIn 0.8s ease;
}

.content-section h2 {
    font-size: clamp(24px, 5vw, 36px);
    color: var(--primary-color);
    margin: 30px 0 20px 0;
}

.content-section p {
    font-size: 16px;
    color: #555;
    line-height: 1.8;
    margin: 15px 0;
}

.content-image {
    width: 100%;
    max-width: 400px;
    margin: 20px auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.content-image:hover {
    transform: scale(1.02);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   INTERACTIVE SECTIONS
   ============================================ */
.interactive-section {
    margin: 60px 20px;
    padding: 40px 30px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    background: linear-gradient(135deg, rgba(38, 201, 133, 0.08) 0%, rgba(233, 30, 99, 0.08) 100%);
    border-radius: 25px;
    border: 3px solid var(--primary-color);
    animation: slideInUp 0.8s ease;
}

.interactive-section h2 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.interactive-section p {
    color: #666;
    margin-bottom: 25px;
    font-size: 16px;
}

/* Color Splash Game */
.color-splash-canvas {
    width: 100%;
    max-width: 500px;
    height: 300px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 20px;
    margin: 20px auto;
    cursor: crosshair;
    border: 3px dashed var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1),
                inset 0 0 20px rgba(0, 0, 0, 0.02);
    transition: all 0.3s ease;
}

.color-splash-canvas:hover {
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15),
                inset 0 0 20px rgba(0, 0, 0, 0.05);
}

.splash-drop {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    animation: splashOut 0.8s ease-out forwards;
}

@keyframes splashOut {
    0% {
        transform: scale(0.5);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.reset-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    margin-top: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.reset-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

/* Quiz Section */
.quiz-container {
    background: white;
    padding: 30px;
    border-radius: 20px;
    margin: 20px 0;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.quiz-question {
    margin-bottom: 25px;
    text-align: left;
    animation: slideInUp 0.5s ease;
}

.quiz-question h3 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 700;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.quiz-option {
    background: #f5f5f5;
    padding: 15px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    font-weight: 500;
}

.quiz-option:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(10px);
    border-color: var(--primary-color);
}

.quiz-option.correct {
    background: #4CAF50;
    color: white;
    border-color: #4CAF50;
}

.quiz-option.incorrect {
    background: #ff6b6b;
    color: white;
    border-color: #ff6b6b;
}

.quiz-score {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 20px;
    border-radius: 15px;
    margin-top: 20px;
    font-size: 18px;
    font-weight: 700;
    text-align: center;
}

/* Wish Generator */
.wish-generator {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.wish-input-group {
    margin-bottom: 25px;
    text-align: left;
}

.wish-input-group label {
    display: block;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 16px;
}

.wish-input {
    width: 100%;
    padding: 15px;
    border: 3px solid var(--primary-color);
    border-radius: 12px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.wish-input:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(38, 201, 133, 0.2);
    transform: scale(1.02);
}

.wish-emoji-selector {
    margin-bottom: 25px;
}

.wish-emoji-selector label {
    display: block;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 16px;
}

.emoji-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.emoji-btn {
    width: 50px;
    height: 50px;
    font-size: 28px;
    border: 3px solid #ddd;
    background: white;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.emoji-btn:hover {
    transform: scale(1.15) rotate(-10deg);
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(38, 201, 133, 0.3);
}

.emoji-btn.selected {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.2);
}

.wish-preview {
    background: linear-gradient(135deg, rgba(38, 201, 133, 0.1) 0%, rgba(233, 30, 99, 0.1) 100%);
    padding: 20px;
    border-radius: 15px;
    margin: 25px 0;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wish-preview p {
    font-size: 18px;
    color: var(--primary-color);
    font-weight: 700;
    text-align: center;
}

/* ============================================
   WISHING TEXT
   ============================================ */
.wishing-text {
    font-size: clamp(16px, 3.5vw, 22px);
    color: white;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
    padding: 35px 40px;
    border-radius: 20px;
    max-width: 750px;
    margin: 50px auto;
    animation: wishingGlow 3s ease-in-out infinite;
    font-weight: 700;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25),
                0 10px 25px rgba(0, 0, 0, 0.15),
                0 0 30px rgba(255, 255, 255, 0.2);
    border: 3px solid rgba(255, 255, 255, 0.4);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.3);
    letter-spacing: 1.5px;
    position: relative;
    overflow: hidden;
}

.wishing-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.2) 50%, 
        transparent 100%);
    animation: wishingShimmer 3s infinite;
    pointer-events: none;
}

.wishing-text:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35),
                0 15px 35px rgba(0, 0, 0, 0.25),
                0 0 40px rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
}

.wishing-text:active {
    transform: translateY(-4px) scale(0.99);
}

@keyframes wishingGlow {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25),
                    0 10px 25px rgba(0, 0, 0, 0.15),
                    0 0 30px rgba(255, 255, 255, 0.2);
    }
    50% { 
        transform: scale(1.01);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25),
                    0 10px 25px rgba(0, 0, 0, 0.15),
                    0 0 50px rgba(255, 255, 255, 0.4);
    }
}

@keyframes wishingShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ============================================
   YOUTUBE SECTION
   ============================================ */
.youtube-section {
    padding: 60px 30px;
    background: linear-gradient(135deg, #f5f5f5 0%, #fafafa 100%);
    text-align: center;
    position: relative;
}

.youtube-section h3 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 30px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    animation: fadeIn 0.8s ease;
}

.youtube-container {
    max-width: 450px;
    margin: 30px auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2),
                0 10px 30px rgba(38, 201, 133, 0.15);
    border: 3px solid rgba(38, 201, 133, 0.2);
    transition: all 0.4s ease;
    animation: slideInUp 0.8s ease 0.2s backwards;
}

.youtube-container:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3),
                0 15px 40px rgba(38, 201, 133, 0.25);
    border-color: rgba(38, 201, 133, 0.4);
}

.youtube-container iframe {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    border: none;
}

.subscribe-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1abc9c 100%);
    color: white;
    padding: 18px 50px;
    font-size: 18px;
    font-weight: 700;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    margin: 30px auto;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 10px 30px rgba(38, 201, 133, 0.4),
                0 4px 15px rgba(0, 0, 0, 0.1);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    animation: slideInUp 0.8s ease 0.4s backwards;
}

.subscribe-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left 0.3s ease;
}

.subscribe-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 50px rgba(38, 201, 133, 0.6),
                0 8px 25px rgba(0, 0, 0, 0.15);
}

.subscribe-btn:hover::before {
    left: 100%;
}

.subscribe-btn:active {
    transform: translateY(-2px) scale(0.99);
}

/* ============================================
   SOCIAL MEDIA SECTION
   ============================================ */
.social-section {
    padding: 60px 30px;
    text-align: center;
    background: linear-gradient(135deg, rgba(38, 201, 133, 0.05) 0%, rgba(233, 30, 99, 0.05) 100%);
    border-top: 3px solid rgba(38, 201, 133, 0.1);
}

.social-section h3 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.social-section p {
    font-style: italic;
    color: #666;
    margin-bottom: 30px;
    font-size: 18px;
    line-height: 1.6;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
    margin: 40px 0;
    animation: slideInUp 0.8s ease;
}

.social-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f0f0 0%, #ffffff 100%);
    border-radius: 50%;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    cursor: pointer;
    font-size: 32px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1),
                0 4px 10px rgba(0, 0, 0, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
    animation: popIn 0.6s ease;
}

.social-icon:nth-child(1) { animation-delay: 0.1s; }
.social-icon:nth-child(2) { animation-delay: 0.2s; }
.social-icon:nth-child(3) { animation-delay: 0.3s; }

.social-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
    z-index: -1;
}

.social-icon:hover::before {
    width: 200%;
    height: 200%;
}

.social-icon:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    transform: translateY(-8px) scale(1.1) rotate(-5deg);
    box-shadow: 0 15px 40px rgba(38, 201, 133, 0.4),
                0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: rgba(38, 201, 133, 0.5);
}

.social-icon:active {
    transform: translateY(-3px) scale(0.95);
}

@keyframes popIn {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    70% {
        transform: scale(1.15);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.social-icon img {
    width: 40px;
    height: 40px;
}

/* ============================================
   POPUP MODAL
   ============================================ */
.popup-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
}

.popup-container.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.popup-content {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: 40px 35px;
    border-radius: 25px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3),
                0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 450px;
    width: 90%;
    position: relative;
    animation: slideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

@keyframes slideUp {
    from {
        transform: translateY(50px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.close-popup {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 32px;
    cursor: pointer;
    color: #999;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.05);
}

.close-popup:hover {
    color: #333;
    background: rgba(0, 0, 0, 0.1);
    transform: rotate(90deg);
}

.popup-title {
    text-align: center;
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sharing-options {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.sharing-option {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f0f0 0%, #ffffff 100%);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-size: 32px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
    user-select: none;
}

.sharing-option img {
    width: 40px;
    height: 40px;
    position: relative;
    z-index: 2;
}

.sharing-option::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
    z-index: 1;
}

.sharing-option:hover::before {
    width: 200%;
    height: 200%;
}

.sharing-option:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    transform: translateY(-8px) scale(1.15);
    box-shadow: 0 15px 40px rgba(38, 201, 133, 0.4),
                0 8px 20px rgba(0, 0, 0, 0.15);
}

.sharing-option:active {
    transform: translateY(-4px) scale(1.1);
}

.sharing-option img {
    width: 40px;
    height: 40px;
}

/* ============================================
   INPUT & BUTTON STYLES
   ============================================ */
.name-input {
    width: 90%;
    max-width: 450px;
    padding: 18px 20px;
    font-size: 16px;
    border: 3px solid var(--primary-color);
    border-radius: 15px;
    margin: 20px auto;
    display: block;
    font-family: inherit;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 15px rgba(38, 201, 133, 0.1);
    letter-spacing: 0.5px;
}

.name-input::placeholder {
    color: #bbb;
}

.name-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(233, 30, 99, 0.2),
                0 8px 25px rgba(38, 201, 133, 0.2);
    background: white;
    transform: scale(1.02);
}

.action-btn {
    background: linear-gradient(135deg, var(--accent-color) 0%, #c2185b 100%);
    color: white;
    padding: 18px 50px;
    font-size: 18px;
    font-weight: 700;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    margin: 25px auto;
    display: block;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 10px 30px rgba(233, 30, 99, 0.4),
                0 4px 15px rgba(0, 0, 0, 0.1);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    overflow: hidden;
}

.action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left 0.3s ease;
}

.action-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 45px rgba(233, 30, 99, 0.6),
                0 8px 25px rgba(0, 0, 0, 0.15);
}

.action-btn:hover::before {
    left: 100%;
}

.action-btn:active {
    transform: translateY(-2px) scale(0.99);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
    background: linear-gradient(135deg, #1a252f 0%, #2c3e50 50%, #1a252f 100%);
    color: white;
    text-align: center;
    padding: 50px 30px;
    margin-top: 60px;
    border-top: 4px solid var(--primary-color);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color) 0%, var(--primary-color) 50%, var(--accent-color) 100%);
    animation: slide 3s infinite;
}

@keyframes slide {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

footer p {
    margin: 12px 0;
    line-height: 1.8;
    font-size: 15px;
}

footer a {
    color: #ffeb3b;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 600;
    position: relative;
}

footer a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #ffeb3b;
    transition: width 0.3s ease;
}

footer a:hover {
    color: #fff59d;
}

footer a:hover::after {
    width: 100%;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.footer-section {
    margin: 25px 0;
    animation: fadeIn 0.8s ease;
}

.footer-section h3 {
    color: #ffeb3b;
    margin-bottom: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 18px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.hidden {
    display: none;
}

.text-center {
    text-align: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    header {
        padding: 12px 15px;
    }

    .header-content {
        flex-direction: column;
        gap: 10px;
    }

    .logo {
        font-size: 22px;
        font-weight: 800;
    }

    .nav-links {
        gap: 15px;
        font-size: 14px;
    }

    .hero-section {
        padding: 30px 20px;
        gap: 20px;
    }

    .circle {
        width: 200px;
        height: 200px;
    }

    .circle img {
        width: 150px;
        height: 150px;
    }

    .hero-text {
        font-size: 20px;
    }

    .circle::before {
        width: 320px;
        height: 320px;
    }

    .circle::after {
        width: 240px;
        height: 240px;
    }

    .slogan {
        width: 95%;
        padding: 18px 15px;
        font-size: 14px;
        margin: 20px auto;
    }

    .wishing-text {
        font-size: 14px;
        padding: 20px 25px;
        max-width: 100%;
    }

    .main-content {
        padding: 20px 15px;
    }

    .content-image {
        max-width: 100%;
    }

    .popup-content {
        padding: 25px 20px;
        width: 95%;
    }

    .countdown-container {
        padding: 30px 20px;
        margin: 20px 15px;
    }

    .countdown-timer {
        font-size: 22px;
    }

    .name-input {
        max-width: 100%;
        padding: 15px 12px;
        font-size: 15px;
    }

    .action-btn {
        padding: 14px 35px;
        font-size: 16px;
        max-width: 100%;
    }

    .youtube-container {
        max-width: 100%;
    }

    .social-icon {
        width: 60px;
        height: 60px;
        font-size: 28px;
    }

    .sharing-option {
        width: 60px;
        height: 60px;
        font-size: 28px;
    }

    footer {
        padding: 30px 15px;
    }

    .footer-section h3 {
        font-size: 16px;
    }

    footer p {
        font-size: 13px;
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .main-content {
        padding: 30px 20px;
    }

    .slogan {
        width: 85%;
    }

    .hero-section {
        padding: 40px 25px;
        gap: 25px;
    }

    .circle {
        width: 240px;
        height: 240px;
    }

    .hero-text {
        font-size: 24px;
    }

    .content-image {
        max-width: 400px;
    }

    .countdown-container {
        padding: 40px 25px;
    }

    .social-icons {
        gap: 20px;
    }

    .social-icon {
        width: 65px;
        height: 65px;
        font-size: 30px;
    }

    footer {
        padding: 40px 25px;
    }
}

@media (min-width: 769px) {
    .main-content {
        padding: 50px 30px;
    }

    .slogan {
        width: 70%;
    }

    .content-image {
        max-width: 500px;
    }

    .hero-section {
        padding: 50px 30px;
        gap: 40px;
    }
}

@media (min-width: 1200px) {
    .hero-section {
        padding: 60px 40px;
    }

    .main-content {
        padding: 60px 40px;
    }

    .slogan {
        width: 65%;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    header, footer, .subscribe-btn, .action-btn {
        display: none;
    }

    body {
        background-color: white;
        color: black;
    }
}