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

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #e94560;
    --gold-color: #f4a261;
    --text-light: #eaeaea;
    --text-dark: #0a0a0a;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--text-light);
    overflow-x: hidden;
    line-height: 1.6;
}

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

/* Particles Background */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(244, 162, 97, 0.6);
    border-radius: 50%;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateX(50px);
        opacity: 0;
    }
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.age-badge {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    background: linear-gradient(135deg, var(--accent-color), var(--highlight-color));
    padding: 20px 40px;
    border-radius: 50px;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(233, 69, 96, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

.age-badge i {
    font-size: 2rem;
    color: var(--gold-color);
}

.age-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--text-light);
}

.main-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.name-highlight {
    background: linear-gradient(135deg, var(--gold-color), var(--highlight-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.date {
    font-size: 1.5rem;
    color: var(--gold-color);
    margin-bottom: 50px;
}

.scroll-indicator {
    animation: bounce 2s infinite;
    font-size: 2rem;
    color: var(--gold-color);
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

/* Greeting Section */
.greeting-section {
    position: relative;
    padding: 100px 0;
    z-index: 1;
}

.greeting-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(244, 162, 97, 0.3);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.greeting-card:hover {
    transform: translateY(-10px);
}

.icon-wrapper {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, var(--accent-color), var(--highlight-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(233, 69, 96, 0.4);
}

.icon-wrapper i {
    font-size: 3rem;
    color: var(--text-light);
}

.greeting-card h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--gold-color);
}

.greeting-text {
    font-size: 1.5rem;
    line-height: 1.8;
    color: var(--text-light);
}

/* Section Title */
.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.section-title i {
    color: var(--gold-color);
}

/* Journey Section */
.journey-section {
    position: relative;
    padding: 100px 0;
    z-index: 1;
}

.journey-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.journey-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(244, 162, 97, 0.2);
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.journey-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--gold-color);
    box-shadow: 0 15px 40px rgba(244, 162, 97, 0.3);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--accent-color), var(--highlight-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.journey-card:hover .card-icon {
    transform: rotate(360deg);
}

.card-icon i {
    font-size: 2.5rem;
    color: var(--text-light);
}

.journey-card h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--gold-color);
}

.journey-card p {
    font-size: 1.1rem;
    color: var(--text-light);
    opacity: 0.9;
}

/* Wishes Section */
.wishes-section {
    position: relative;
    padding: 100px 0;
    z-index: 1;
}

.wishes-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.wish-item {
    display: flex;
    align-items: center;
    gap: 30px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(244, 162, 97, 0.2);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
}

.wish-item:hover {
    border-color: var(--gold-color);
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(244, 162, 97, 0.2);
}

.wish-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-color), var(--highlight-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.wish-icon i {
    font-size: 2rem;
    color: var(--text-light);
}

.wish-text h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--gold-color);
}

.wish-text p {
    font-size: 1.2rem;
    color: var(--text-light);
    opacity: 0.9;
}

/* Energy Section */
.energy-section {
    position: relative;
    padding: 100px 0;
    z-index: 1;
}

.energy-content {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(244, 162, 97, 0.3);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
}

.energy-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, var(--highlight-color), var(--gold-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s ease-in-out infinite;
}

.energy-icon i {
    font-size: 4rem;
    color: var(--text-light);
}

.energy-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--gold-color);
}

.energy-text {
    font-size: 1.5rem;
    margin-bottom: 50px;
    line-height: 1.8;
}

.highlight-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--highlight-color);
    text-shadow: 0 0 20px rgba(233, 69, 96, 0.5);
}

/* Timeline */
.timeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-top: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.timeline-point {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 2;
}

.point-circle {
    width: 30px;
    height: 30px;
    border: 3px solid rgba(244, 162, 97, 0.3);
    border-radius: 50%;
    background: var(--secondary-color);
    transition: all 0.3s ease;
}

.timeline-point.active .point-circle {
    border-color: var(--gold-color);
    background: var(--gold-color);
    box-shadow: 0 0 20px rgba(244, 162, 97, 0.6);
}

.timeline-point.current .point-circle {
    width: 40px;
    height: 40px;
    animation: pulse 2s ease-in-out infinite;
}

.point-age {
    margin-top: 15px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--gold-color);
}

.point-label {
    position: absolute;
    top: -40px;
    font-size: 1rem;
    color: var(--highlight-color);
    white-space: nowrap;
    font-weight: bold;
}

.timeline-line {
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, var(--gold-color), rgba(244, 162, 97, 0.3));
    position: relative;
    z-index: 1;
}

/* Final Section */
.final-section {
    position: relative;
    padding: 100px 0;
    z-index: 1;
}

.final-card {
    background: linear-gradient(135deg, var(--accent-color), var(--highlight-color));
    border-radius: 20px;
    padding: 80px 40px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(233, 69, 96, 0.4);
    max-width: 700px;
    margin: 0 auto;
}

.final-card i {
    font-size: 5rem;
    color: var(--gold-color);
    margin-bottom: 30px;
    animation: swing 3s ease-in-out infinite;
}

@keyframes swing {
    0%, 100% {
        transform: rotate(-10deg);
    }
    50% {
        transform: rotate(10deg);
    }
}

.final-card h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--text-light);
}

.final-card p {
    font-size: 1.5rem;
    margin-bottom: 40px;
    line-height: 1.8;
}

.signature {
    font-size: 2rem;
    font-style: italic;
    color: var(--gold-color);
    margin-top: 30px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.5rem;
    }

    .age-number {
        font-size: 2rem;
    }

    .age-badge {
        padding: 15px 30px;
    }

    .age-badge i {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 2rem;
        flex-direction: column;
        gap: 10px;
    }

    .greeting-card {
        padding: 40px 20px;
    }

    .greeting-card h2 {
        font-size: 2rem;
    }

    .greeting-text {
        font-size: 1.2rem;
    }

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

    .wish-item {
        flex-direction: column;
        text-align: center;
    }

    .wish-item:hover {
        transform: translateY(-10px);
    }

    .timeline {
        flex-direction: column;
        gap: 30px;
    }

    .timeline-line {
        width: 3px;
        height: 80px;
        background: linear-gradient(180deg, var(--gold-color), rgba(244, 162, 97, 0.3));
    }

    .point-label {
        top: auto;
        left: 60px;
    }

    .energy-text {
        font-size: 1.2rem;
    }

    .final-card {
        padding: 60px 20px;
    }

    .final-card h2 {
        font-size: 2rem;
    }

    .final-card p {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }

    .date {
        font-size: 1.2rem;
    }

    .journey-card,
    .wish-item,
    .greeting-card {
        padding: 30px 15px;
    }
}