/* ========================================
   COLOR PALETTE & CSS VARIABLES
   Purple theme with glitter effect
   ======================================== */

:root {
    /* Purple palette - main brand colors */
    --purple-dark: #5E2CA5;
    --purple-main: #7B3CBF;
    --purple-medium: #A86BD9;
    --purple-light: #E2C7FF;
    --purple-very-light: #F5EDFF;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--purple-main) 0%, var(--purple-medium) 100%);
    --gradient-hero: linear-gradient(180deg, rgba(94, 44, 165, 0.1) 0%, rgba(168, 107, 217, 0.05) 100%);

    /* Text colors */
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-light: #ffffff;

    /* Background colors */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --purple-dark: #9D6FCC;
        --purple-main: #A86BD9;
        --purple-medium: #C29EE6;
        --purple-light: #E2C7FF;

        --text-primary: #f0f0f0;
        --text-secondary: #b0b0b0;

        --bg-primary: #0f0a1a;
        --bg-secondary: #1a1125;
    }
}

/* ========================================
   GLITTER BACKGROUND PATTERN
   Creates subtle sparkle effect
   ======================================== */

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.4;
    background:
        radial-gradient(circle at 20% 30%, var(--purple-light) 0px, transparent 2px),
        radial-gradient(circle at 60% 70%, var(--purple-medium) 0px, transparent 1px),
        radial-gradient(circle at 80% 20%, var(--purple-light) 0px, transparent 2px),
        radial-gradient(circle at 40% 80%, var(--purple-medium) 0px, transparent 1px),
        radial-gradient(circle at 90% 60%, var(--purple-light) 0px, transparent 2px),
        radial-gradient(circle at 15% 90%, var(--purple-medium) 0px, transparent 1px),
        radial-gradient(circle at 70% 40%, var(--purple-light) 0px, transparent 2px),
        radial-gradient(circle at 30% 50%, var(--purple-medium) 0px, transparent 1px);
    background-size: 200% 200%;
    animation: glitterFloat 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes glitterFloat {
    0%, 100% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ========================================
   UTILITIES
   ======================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   MODAL POPUP (Birthday Message)
   ======================================== */

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-content {
    background: linear-gradient(135deg, #ffffff 0%, var(--purple-very-light) 100%);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    padding: var(--spacing-lg);
    box-shadow: 0 20px 60px rgba(94, 44, 165, 0.4);
    animation: slideUp 0.4s ease;
    position: relative;
    overflow: hidden;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--purple-light) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
    animation: sparkle 3s linear infinite;
}

@keyframes sparkle {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 4vw, 2rem);
    color: var(--purple-dark);
    margin-bottom: var(--spacing-md);
    position: relative;
    text-align: center;
}

.modal-body p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
    text-align: justify;
}

.modal-footer {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: stretch;
    position: relative;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--purple-main);
}

.checkbox-label:hover {
    color: var(--purple-dark);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(123, 60, 191, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(123, 60, 191, 0.5);
}

.btn-primary:focus-visible {
    outline: 3px solid var(--purple-medium);
    outline-offset: 2px;
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg) var(--spacing-md);
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--purple-light) 0%, transparent 70%);
    border-radius: 50%;
    top: 10%;
    right: 10%;
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    text-align: center;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

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

.hero-image-wrapper {
    position: relative;
    width: 250px;
    height: 250px;
    margin: 0 auto var(--spacing-md);
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 6px solid var(--purple-medium);
    box-shadow:
        0 0 40px rgba(168, 107, 217, 0.4),
        0 0 80px rgba(168, 107, 217, 0.2);
    transition: all var(--transition-normal);
}

.hero-image:hover {
    transform: scale(1.05);
    box-shadow:
        0 0 60px rgba(168, 107, 217, 0.6),
        0 0 100px rgba(168, 107, 217, 0.3);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.hero-tagline {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: var(--text-secondary);
    font-weight: 500;
    font-style: italic;
}

/* .about {
    margin-top: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.about p {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    color: var(--text-secondary);
    line-height: 1.8;
    text-align: justify;
} */

/* ========================================
   VIDEO SECTION
   ======================================== */

.videos {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
}

.video-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
}

.video-wrapper:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(123, 60, 191, 0.3);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--radius-md);
}

/* ========================================
   SOCIAL SECTION
   ======================================== */

.social {
    padding: var(--spacing-xl) 0;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.social-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--gradient-primary);
    color: var(--text-light);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(123, 60, 191, 0.2);
    min-height: 120px;
}

.social-btn svg {
    width: 40px;
    height: 40px;
    transition: transform var(--transition-fast);
}

.social-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 25px rgba(123, 60, 191, 0.4);
}

.social-btn:hover svg {
    transform: scale(1.1);
}

.social-btn:focus-visible {
    outline: 3px solid var(--purple-medium);
    outline-offset: 3px;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: linear-gradient(135deg, var(--purple-dark) 0%, var(--purple-main) 100%);
    color: var(--text-light);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-section h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.footer-section p {
    font-size: 0.9375rem;
    opacity: 0.9;
    line-height: 1.8;
}

.footer-link {
    color: var(--text-light);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: opacity var(--transition-fast);
}

.footer-link:hover {
    opacity: 0.8;
}

.footer-link:focus-visible {
    outline: 2px solid var(--text-light);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* ========================================
   ACCESSIBILITY
   ======================================== */

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 3px solid var(--purple-medium);
    outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --purple-dark: #4a1580;
        --purple-main: #6020a0;
    }
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}