/* ============================================
   Book For Holiday — Under Construction
   Design System & Styles
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    /* Colors */
    --color-bg-deep: #0a0e1a;
    --color-bg-dark: #111827;
    --color-bg-card: rgba(255, 255, 255, 0.04);
    --color-bg-card-hover: rgba(255, 255, 255, 0.08);
    --color-glass: rgba(255, 255, 255, 0.06);
    --color-glass-border: rgba(255, 255, 255, 0.12);
    --color-glass-border-hover: rgba(255, 255, 255, 0.22);

    --color-primary: #f7a934;
    --color-primary-soft: #fceabb;
    --color-accent: #e8a849;
    --color-accent-glow: rgba(247, 169, 52, 0.3);

    --color-text: #f3f4f6;
    --color-text-muted: #9ca3af;
    --color-text-subtle: #6b7280;

    --color-success: #34d399;
    --color-success-bg: rgba(52, 211, 153, 0.1);

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 200ms var(--ease-out-expo);
    --transition-base: 350ms var(--ease-out-expo);
    --transition-slow: 600ms var(--ease-out-expo);
}

/* --- Reset --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-deep);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
}

/* --- Particles Background --- */
.particles {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-primary-soft), transparent);
    opacity: 0;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        opacity: 0;
        transform: translateY(-10vh) scale(1);
    }
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('images/hero.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 14, 26, 0.85) 0%,
        rgba(10, 14, 26, 0.75) 40%,
        rgba(10, 14, 26, 0.92) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
    width: 100%;
    padding: var(--space-2xl) var(--space-lg);
    text-align: center;
    animation: fadeInUp 1s var(--ease-out-expo) both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Brand --- */
.brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.brand-icon {
    flex-shrink: 0;
    filter: drop-shadow(0 0 12px var(--color-accent-glow));
    animation: gentlePulse 3s ease-in-out infinite;
}

.brand-logo {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

@keyframes gentlePulse {
    0%, 100% { filter: drop-shadow(0 0 12px var(--color-accent-glow)); }
    50% { filter: drop-shadow(0 0 24px var(--color-accent-glow)); }
}

.brand-name {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
    margin: 0;
    line-height: 1.2;
}

.brand-accent {
    color: var(--color-primary);
}

/* --- Tagline --- */
/* H1 — styled as the tagline for visual hierarchy */
.tagline {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    font-weight: 500;
    font-style: italic;
    color: var(--color-primary-soft);
    margin: 0 0 var(--space-md) 0;
    line-height: 1.4;
    animation: fadeInUp 1s 0.15s var(--ease-out-expo) both;
}

/* H2 — styled as secondary descriptive text */
.sub-tagline {
    font-family: var(--font-body);
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    font-weight: 400;
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
    animation: fadeInUp 1s 0.3s var(--ease-out-expo) both;
}


.sub-tagline strong {
    color: var(--color-text);
    font-weight: 500;
}

/* --- Countdown --- */
.countdown-wrapper {
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 1s 0.45s var(--ease-out-expo) both;
}

.countdown-label {
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-subtle);
    margin-bottom: var(--space-md);
}

.countdown {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--color-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    min-width: 72px;
    transition: border-color var(--transition-fast);
}

.countdown-item:hover {
    border-color: var(--color-glass-border-hover);
}

.countdown-number {
    font-family: var(--font-body);
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.countdown-unit {
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-subtle);
    margin-top: var(--space-xs);
}

.countdown-separator {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-text-subtle);
    padding-bottom: 14px;
    animation: blink 1.2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.2; }
}

/* --- Email Capture --- */
.email-capture {
    animation: fadeInUp 1s 0.6s var(--ease-out-expo) both;
}

.email-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.email-form {
    max-width: 480px;
    margin: 0 auto;
}

.input-group {
    display: flex;
    gap: 0;
    background: var(--color-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-full);
    padding: 4px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-group:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

#email-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: var(--space-sm) var(--space-lg);
    min-width: 0;
}

#email-input::placeholder {
    color: var(--color-text-subtle);
}

.btn-submit {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-bg-deep);
    border: none;
    border-radius: var(--radius-full);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-submit:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 20px var(--color-accent-glow);
}

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

.btn-icon {
    transition: transform var(--transition-fast);
}

.btn-submit:hover .btn-icon {
    transform: translateX(3px);
}

.email-hint {
    font-size: 0.78rem;
    color: var(--color-text-subtle);
    margin-top: var(--space-sm);
}

/* --- Success Message --- */
.success-message[hidden] {
    display: none !important;
}

.success-message {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    background: var(--color-success-bg);
    border: 1px solid rgba(52, 211, 153, 0.25);
    border-radius: var(--radius-full);
    padding: var(--space-md) var(--space-lg);
    max-width: 480px;
    margin: 0 auto;
    animation: scaleIn 0.5s var(--ease-out-expo) both;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.success-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--color-success);
    color: var(--color-bg-deep);
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

.success-message p {
    font-size: 0.9rem;
    color: var(--color-success);
    text-align: left;
}

/* --- Categories Section --- */
.categories {
    position: relative;
    z-index: 1;
    padding: var(--space-4xl) var(--space-lg);
    background: linear-gradient(180deg, var(--color-bg-deep), var(--color-bg-dark));
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3.5vw, 2rem);
    font-weight: 700;
    text-align: center;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
    max-width: 1100px;
    margin: 0 auto;
}

/* --- Category Card --- */
.category-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.category-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo), border-color var(--transition-base), box-shadow var(--transition-base);
}

.category-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-primary);
    box-shadow:
        0 8px 32px rgba(247, 169, 52, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.card-image {
    margin: calc(-1 * var(--space-xl)) calc(-1 * var(--space-xl)) var(--space-md) calc(-1 * var(--space-xl));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    height: 180px;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out-expo);
}

.category-card:hover .card-image img {
    transform: scale(1.06);
}

.category-card:hover .card-icon {
    transform: scale(1.1);
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.card-description {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.65;
    margin-bottom: var(--space-md);
}

.card-description strong {
    color: var(--color-text);
    font-weight: 500;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    list-style: none;
}

.card-tags li {
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-primary);
    background: rgba(247, 169, 52, 0.08);
    border: 1px solid rgba(247, 169, 52, 0.18);
    border-radius: var(--radius-full);
    padding: 3px 10px;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.category-card:hover .card-tags li {
    background: rgba(247, 169, 52, 0.12);
    border-color: rgba(247, 169, 52, 0.3);
}

/* --- Footer --- */
.footer {
    position: relative;
    z-index: 1;
    padding: var(--space-2xl) var(--space-lg);
    border-top: 1px solid var(--color-glass-border);
    background: var(--color-bg-dark);
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.footer-copy {
    font-size: 0.82rem;
    color: var(--color-text-subtle);
    margin-bottom: var(--space-xs);
}

.footer-seo {
    font-size: 0.72rem;
    color: var(--color-text-subtle);
    opacity: 0.6;
}

/* --- Formats Section --- */
.formats {
    position: relative;
    z-index: 1;
    padding: var(--space-4xl) var(--space-lg);
    background: var(--color-bg-dark);
}

.formats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.format-item {
    text-align: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-lg);
    transition: transform var(--transition-base), border-color var(--transition-base);
    opacity: 0;
    transform: translateY(24px);
}

.format-item.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo), border-color var(--transition-base);
}

.format-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-glass-border-hover);
}

.format-icon {
    font-size: 2.2rem;
    margin-bottom: var(--space-md);
    line-height: 1;
}

.format-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.format-description {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* --- Upcoming Articles Section --- */
.upcoming {
    position: relative;
    z-index: 1;
    padding: var(--space-4xl) var(--space-lg);
    background: linear-gradient(180deg, var(--color-bg-dark), var(--color-bg-deep));
}

.upcoming-list {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.upcoming-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-glass-border);
    border-left: 3px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: var(--space-lg) var(--space-xl);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    opacity: 0;
    transform: translateX(-16px);
}

.upcoming-item.visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo), border-color var(--transition-base), box-shadow var(--transition-base);
}

.upcoming-item:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.upcoming-tag {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    background: rgba(247, 169, 52, 0.1);
    border-radius: var(--radius-full);
    padding: 2px 10px;
    margin-bottom: var(--space-sm);
}

.upcoming-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
    line-height: 1.35;
}

.upcoming-excerpt {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.55;
}

/* --- About Section --- */
.about {
    position: relative;
    z-index: 1;
    padding: var(--space-4xl) var(--space-lg);
    background: var(--color-bg-deep);
}

.about-content {
    max-width: 640px;
    margin: 0 auto;
    background: var(--color-bg-card);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
}

.about-content p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-content strong {
    color: var(--color-text);
    font-weight: 500;
}

/* --- Responsive --- */
@media (max-width: 600px) {
    .hero {
        background-attachment: scroll;
    }

    .hero-content {
        padding: var(--space-xl) var(--space-md);
    }

    .brand {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .countdown {
        gap: 4px;
    }

    .countdown-item {
        padding: var(--space-sm) var(--space-md);
        min-width: 56px;
    }

    .countdown-number {
        font-size: 1.3rem;
    }

    .countdown-separator {
        font-size: 1.1rem;
        padding-bottom: 10px;
    }

    .input-group {
        flex-direction: column;
        border-radius: var(--radius-md);
        gap: var(--space-xs);
    }

    #email-input {
        text-align: center;
        padding: var(--space-md);
    }

    .btn-submit {
        justify-content: center;
        border-radius: var(--radius-sm);
        padding: var(--space-md);
    }

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

    .category-card {
        padding: var(--space-lg);
    }

    .card-image {
        margin: calc(-1 * var(--space-lg)) calc(-1 * var(--space-lg)) var(--space-md) calc(-1 * var(--space-lg));
    }

    .formats-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .upcoming-item {
        padding: var(--space-md) var(--space-lg);
    }

    .about-content {
        padding: var(--space-lg);
    }
}

@media (min-width: 601px) and (max-width: 900px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .formats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}