/* Valentine's Day Card - Production Styles */

:root {
    --color-pink: #f06292;
    --color-pink-dark: #ec407a;
    --color-pink-light: #fdf2f8;
    --color-pink-100: #fce4ec;
    --color-pink-200: rgba(252, 107, 149, 0.15);
    --font-cursive: 'Dancing Script', cursive;
    --font-sans: 'Quicksand', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-lg: 1.5rem;
    --radius-xl: 1rem;
    --shadow-glass: 0 8px 32px 0 var(--color-pink-200);
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
}

/* Base & reset */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: linear-gradient(135deg, #fff5f7 0%, var(--color-pink-100) 100%);
    overflow-x: hidden;
    overflow-y: auto;
    min-height: 100vh;
    min-height: 100dvh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

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

/* Typography */
.cursive {
    font-family: var(--font-cursive);
}

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

.floating-heart {
    position: absolute;
    color: var(--color-pink);
    opacity: 0.6;
    animation: float 6s infinite linear;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(-10vh) rotate(360deg);
        opacity: 0;
    }
}

/* Glass card */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: var(--shadow-glass);
}

/* Main card */
.card-main {
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    max-width: 28rem;
    width: 100%;
    position: relative;
    z-index: 10;
    animation: fadeIn 0.8s ease-out;
}

@media (min-width: 768px) {
    .card-main {
        padding: 3rem;
    }
}

.card-icon-wrap {
    margin-bottom: 1.5rem;
}

.heart-icon {
    width: 5rem;
    height: 5rem;
    margin: 0 auto;
    display: block;
    color: var(--color-pink);
    animation: pulse 2s ease-in-out infinite;
}

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

.heading-main {
    font-size: 2.25rem;
    color: var(--color-pink);
    margin: 0 0 2rem;
}

@media (min-width: 768px) {
    .heading-main {
        font-size: 3rem;
    }
}

/* Buttons */
.button-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
}

@media (min-width: 640px) {
    .button-group {
        flex-direction: row;
    }
}

.btn {
    font-family: inherit;
    font-weight: 600;
    font-size: 1.125rem;
    padding: 0.75rem 2.5rem;
    border-radius: 9999px;
    cursor: pointer;
    border: none;
    transition: transform var(--transition-smooth), background-color var(--transition-smooth);
}

.btn:focus-visible {
    outline: 2px solid var(--color-pink);
    outline-offset: 2px;
}

.btn-pink {
    background: var(--color-pink);
    color: white;
    box-shadow: 0 4px 14px rgba(240, 98, 146, 0.4);
}

.btn-pink:hover {
    background: var(--color-pink-dark);
    transform: scale(1.05);
}

.btn-pink:active {
    transform: scale(0.98);
}

.btn-outline {
    border: 2px solid var(--color-pink);
    color: var(--color-pink);
    background: transparent;
}

.btn-outline:hover {
    background: var(--color-pink-light);
    transform: scale(0.95);
}

.btn-ghost {
    background: transparent;
    color: #9ca3af;
    font-size: 0.875rem;
    padding: 0.5rem;
}

.btn-ghost:hover {
    color: var(--color-pink);
}

.btn-full {
    width: 100%;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Modals */
.modal-overlay {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    position: fixed;
    inset: 0;
    z-index: 50;
}

.modal-content {
    padding: 2rem;
    border-radius: 1rem;
    max-width: 24rem;
    width: calc(100% - 2rem);
    margin: 0 1rem;
    text-align: center;
    animation: fadeIn 0.8s ease-out;
}

.modal-content-accent {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border: 2px solid rgba(244, 114, 182, 0.3);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 1.5rem;
}

.modal-title-accent {
    color: var(--color-pink);
}

.modal-emoji {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.modal-text {
    color: #4b5563;
    margin: 0 0 2rem;
}

/* Celebration screen */
.celebration-screen {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    z-index: 10;
    position: relative;
    animation: fadeIn 0.8s ease-out;
}

.card-celebration {
    max-width: 32rem;
    margin: 0 auto;
}

.heading-celebration {
    font-size: 3rem;
    color: var(--color-pink);
    margin: 0 0 1rem;
}

@media (min-width: 768px) {
    .heading-celebration {
        font-size: 3.75rem;
    }
}

.celebration-subtitle {
    font-size: 1.5rem;
    color: #f9a8d4;
    margin: 0 0 2rem;
    font-weight: 600;
}

.gif-container {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    margin-bottom: 1.5rem;
    background: #fce7f3;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 250px;
}

.celebration-video {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 0.5rem;
    pointer-events: none;
    object-fit: contain;
}

.celebration-footer {
    color: var(--color-pink);
    font-family: var(--font-cursive);
    font-size: 1.5rem;
    font-style: italic;
    margin: 1rem 0 0;
}

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

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