/**
 * ====================================================================
 * PUBLIC HOSTEL WEBSITE DESIGN SYSTEM & STYLESHEET
 * Theme: Warm Editorial Hostel
 * Framework: Tailwind CSS CDN + Vanilla CSS Design Tokens
 * ====================================================================
 */

/* --------------------------------------------------------------------
   1. THEME VARIABLES & ROOT TOKENS (WARM EDITORIAL HOSTEL)
   -------------------------------------------------------------------- */
:root {
    --public-primary: #A95A00;
    --public-primary-rgb: 169, 90, 0;
    --public-secondary: #7A4100;
    --public-secondary-rgb: 122, 65, 0;
    --public-accent: #A95A00;
    --public-accent-rgb: 169, 90, 0;
    --public-accent-soft: #F2D8B7;
    --public-accent-soft-rgb: 242, 216, 183;

    --public-bg: #FBF4E8;
    --public-surface: #FFFFFF;
    --public-surface-secondary: #FFF9F0;
    --public-surface-muted: #F4ECE0;
    --public-surface-hover: #FFFDF9;

    --public-text: #090909;
    --public-text-secondary: #454545;
    --public-text-muted: #78716C;
    --public-text-light: #A8A29E;

    --public-border: #E8DDCC;
    --public-border-light: #F0E7D8;
    --public-border-focus: rgba(var(--public-primary-rgb), 0.5);

    --public-success: #15803D;
    --public-warning: #B45309;
    --public-danger: #B91C1C;
    --public-info: #0369A1;

    --public-shadow-sm: 0 1px 3px 0 rgba(74, 52, 28, 0.05);
    --public-shadow: 0 4px 10px -2px rgba(74, 52, 28, 0.06), 0 2px 4px -2px rgba(74, 52, 28, 0.04);
    --public-shadow-md: 0 12px 20px -4px rgba(74, 52, 28, 0.08), 0 4px 8px -3px rgba(74, 52, 28, 0.04);
    --public-shadow-lg: 0 24px 32px -6px rgba(74, 52, 28, 0.1), 0 8px 16px -6px rgba(74, 52, 28, 0.04);

    --public-radius-sm: 0.375rem;
    --public-radius: 0.75rem;
    --public-radius-lg: 1rem;
    --public-radius-xl: 1.5rem;
    --public-radius-full: 9999px;

    --public-font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --public-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------
   2. BASE & RESET ENHANCEMENTS
   -------------------------------------------------------------------- */
html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--public-bg);
}

body {
    font-family: var(--public-font-sans);
    background-color: var(--public-bg);
    color: var(--public-text);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1 0 auto;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #F4ECE0;
}

::-webkit-scrollbar-thumb {
    background: #D7CABB;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #A95A00;
}

/* --------------------------------------------------------------------
   3. TYPOGRAPHY SYSTEM
   -------------------------------------------------------------------- */
.public-heading-hero {
    font-size: clamp(2.25rem, 5.5vw + 1rem, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.035em;
    color: var(--public-text);
}

.public-heading-1 {
    font-size: clamp(1.75rem, 3vw + 0.5rem, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.025em;
    color: var(--public-text);
}

.public-heading-2 {
    font-size: clamp(1.5rem, 2.5vw + 0.5rem, 2.25rem);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--public-text);
}

.public-heading-3 {
    font-size: clamp(1.25rem, 1.5vw + 0.5rem, 1.625rem);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -0.015em;
    color: var(--public-text);
}

.public-heading-4 {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--public-text);
}

.public-lead {
    font-size: clamp(1rem, 1vw + 0.5rem, 1.25rem);
    font-weight: 400;
    line-height: 1.65;
    color: var(--public-text-secondary);
}

.public-body {
    font-size: 0.9375rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--public-text-secondary);
}

.public-caption {
    font-size: 0.8125rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--public-text-muted);
}

.public-gradient-text {
    background: linear-gradient(135deg, var(--public-primary) 0%, var(--public-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------------
   4. LAYOUT & CONTAINER SYSTEM
   -------------------------------------------------------------------- */
.public-container {
    width: 100%;
    max-width: 80rem;
    /* 1280px */
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .public-container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .public-container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

.public-section {
    padding-top: clamp(3.5rem, 6vw, 6rem);
    padding-bottom: clamp(3.5rem, 6vw, 6rem);
    position: relative;
}

.public-section-sm {
    padding-top: clamp(2rem, 4vw, 3.5rem);
    padding-bottom: clamp(2rem, 4vw, 3.5rem);
}

.public-section-alt {
    background-color: var(--public-surface-secondary);
}

/* --------------------------------------------------------------------
   5. BUTTON SYSTEM
   -------------------------------------------------------------------- */
.btn-public {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.25rem;
    border-radius: var(--public-radius);
    padding: 0.625rem 1.25rem;
    transition: var(--public-transition);
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    border: 1px solid transparent;
    user-select: none;
}

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

.btn-public:disabled,
.btn-public[aria-disabled="true"] {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Sizes */
.btn-public-sm {
    padding: 0.4375rem 0.875rem;
    font-size: 0.8125rem;
    border-radius: var(--public-radius-sm);
    gap: 0.375rem;
}

.btn-public-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.0625rem;
    border-radius: var(--public-radius-lg);
    gap: 0.625rem;
}

.btn-public-icon-only {
    padding: 0.625rem;
    border-radius: var(--public-radius);
}

/* Variants */
.btn-primary {
    background-color: var(--public-primary);
    color: #FFFFFF;
    border-color: var(--public-primary);
    box-shadow: 0 2px 4px rgba(var(--public-primary-rgb), 0.2);
}

.btn-primary:hover {
    background-color: var(--public-secondary);
    color: #FFFFFF;
    border-color: var(--public-secondary);
    box-shadow: 0 4px 12px rgba(var(--public-primary-rgb), 0.35);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(var(--public-primary-rgb), 0.2);
}

.btn-secondary {
    background-color: #FFFFFF;
    color: var(--public-text);
    border-color: var(--public-border);
}

.btn-secondary:hover {
    background-color: var(--public-surface-secondary);
    color: var(--public-primary);
    border-color: var(--public-primary);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: var(--public-primary);
    border: 1px solid var(--public-primary);
}

.btn-outline:hover {
    background-color: var(--public-accent-soft);
    color: var(--public-secondary);
    border-color: var(--public-primary);
    transform: translateY(-1px);
}

.btn-outline-white {
    background-color: transparent;
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.btn-outline-white:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: #FFFFFF;
    border-color: #FFFFFF;
    transform: translateY(-1px);
}

.btn-accent {
    background-color: var(--public-accent);
    color: #FFFFFF;
    border-color: var(--public-accent);
    box-shadow: 0 2px 4px rgba(var(--public-accent-rgb), 0.2);
}

.btn-accent:hover {
    background-color: var(--public-secondary);
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(var(--public-accent-rgb), 0.35);
    transform: translateY(-1px);
}

.btn-ghost {
    background-color: transparent;
    color: var(--public-text-secondary);
}

.btn-ghost:hover {
    background-color: var(--public-surface-muted);
    color: var(--public-primary);
}

.btn-danger {
    background-color: var(--public-danger);
    color: #FFFFFF;
}

.btn-danger:hover {
    background-color: #DC2626;
    color: #FFFFFF;
}

/* --------------------------------------------------------------------
   6. CARD SYSTEM
   -------------------------------------------------------------------- */
.public-card {
    background-color: #FFFFFF;
    border: 1px solid var(--public-border);
    border-radius: var(--public-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--public-shadow-sm);
    transition: var(--public-transition);
    position: relative;
}

.public-card-hover {
    transition: var(--public-transition);
}

.public-card-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--public-shadow-lg);
    border-color: rgba(var(--public-primary-rgb), 0.3);
}

.public-card-glass {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--public-border);
    box-shadow: var(--public-shadow-md);
}

.public-card-interactive {
    cursor: pointer;
}

/* --------------------------------------------------------------------
   7. FORM DESIGN SYSTEM
   -------------------------------------------------------------------- */
.public-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    margin-bottom: 1.25rem;
}

.public-form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--public-text);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.public-form-label .required-indicator {
    color: var(--public-danger);
}

.public-form-input,
.public-form-select,
.public-form-textarea {
    width: 100%;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--public-text);
    background-color: #FFFFFF;
    border: 1px solid var(--public-border);
    border-radius: var(--public-radius);
    padding: 0.625rem 0.875rem;
    transition: var(--public-transition);
}

.public-form-input:hover,
.public-form-select:hover,
.public-form-textarea:hover {
    border-color: #CBD5E1;
}

.public-form-input:focus,
.public-form-select:focus,
.public-form-textarea:focus {
    outline: none;
    border-color: var(--public-primary);
    box-shadow: 0 0 0 3px rgba(var(--public-primary-rgb), 0.15);
    background-color: #FFFFFF;
}

.public-form-input::placeholder,
.public-form-textarea::placeholder {
    color: var(--public-text-light);
}

.public-form-input.is-invalid,
.public-form-select.is-invalid,
.public-form-textarea.is-invalid {
    border-color: var(--public-danger);
    background-color: #FEF2F2;
}

.public-form-input.is-invalid:focus,
.public-form-select.is-invalid:focus,
.public-form-textarea.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.public-form-error {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--public-danger);
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.public-form-help {
    font-size: 0.8125rem;
    color: var(--public-text-muted);
    margin-top: 0.25rem;
}

/* Custom Checkbox & Radio */
.public-checkbox,
.public-radio {
    accent-color: var(--public-primary);
    width: 1.125rem;
    height: 1.125rem;
    cursor: pointer;
}

/* --------------------------------------------------------------------
   8. NAVIGATION SYSTEM
   -------------------------------------------------------------------- */
.public-navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    width: 100%;
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--public-border);
    transition: var(--public-transition);
}

.public-navbar-scrolled {
    background-color: #FFFFFF;
    box-shadow: var(--public-shadow-sm);
    border-bottom-color: var(--public-border);
}

.public-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--public-text-secondary);
    padding: 0.5rem 0.875rem;
    border-radius: var(--public-radius-sm);
    transition: var(--public-transition);
    text-decoration: none;
    position: relative;
}

.public-nav-link:hover {
    color: var(--public-primary);
    background-color: rgba(var(--public-primary-rgb), 0.06);
}

.public-nav-link.active {
    color: var(--public-primary);
    font-weight: 700;
}

.public-nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0.875rem;
    right: 0.875rem;
    height: 2px;
    background-color: var(--public-primary);
    border-radius: 2px;
}

/* Mobile Drawer */
.public-mobile-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(9, 9, 9, 0.6);
    backdrop-filter: blur(4px);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.public-mobile-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.public-mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 85%;
    max-width: 22rem;
    background-color: #FFFFFF;
    border-left: 1px solid var(--public-border);
    z-index: 100;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--public-shadow-lg);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.public-mobile-drawer.open {
    transform: translateX(0);
}

/* --------------------------------------------------------------------
   9. BADGES & PILLS
   -------------------------------------------------------------------- */
.public-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.625rem;
    border-radius: var(--public-radius-full);
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.public-badge-primary {
    background-color: rgba(var(--public-primary-rgb), 0.12);
    color: var(--public-primary);
    border: 1px solid rgba(var(--public-primary-rgb), 0.25);
}

.public-badge-secondary {
    background-color: var(--public-surface-muted);
    color: var(--public-text-secondary);
    border: 1px solid var(--public-border);
}

.public-badge-success {
    background-color: #F0FDF4;
    color: #15803D;
    border: 1px solid #BBF7D0;
}

.public-badge-warning {
    background-color: #FFFBEB;
    color: #92400E;
    border: 1px solid #FDE68A;
}

.public-badge-danger {
    background-color: #FEF2F2;
    color: #991B1B;
    border: 1px solid #FECACA;
}

.public-badge-info {
    background-color: #F0F9FF;
    color: #075985;
    border: 1px solid #BAE6FD;
}

/* --------------------------------------------------------------------
   10. ALERTS & FLASH MESSAGES
   -------------------------------------------------------------------- */
.public-alert {
    border-radius: var(--public-radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    border: 1px solid transparent;
    box-shadow: var(--public-shadow-sm);
    animation: alertFadeIn 0.3s ease-out;
}

.public-alert-success {
    background-color: #F0FDF4;
    border-color: #BBF7D0;
    color: #166534;
}

.public-alert-danger,
.public-alert-error {
    background-color: #FEF2F2;
    border-color: #FECACA;
    color: #991B1B;
}

.public-alert-warning {
    background-color: #FFFBEB;
    border-color: #FDE68A;
    color: #92400E;
}

.public-alert-info {
    background-color: #F0F9FF;
    border-color: #BAE6FD;
    color: #075985;
}

/* --------------------------------------------------------------------
   11. BREADCRUMBS
   -------------------------------------------------------------------- */
.public-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--public-text-muted);
    margin-bottom: 1.5rem;
}

.public-breadcrumb a {
    color: var(--public-text-secondary);
    text-decoration: none;
    transition: var(--public-transition);
}

.public-breadcrumb a:hover {
    color: var(--public-primary);
}

.public-breadcrumb .separator {
    color: var(--public-text-light);
    font-size: 0.75rem;
}

.public-breadcrumb .current {
    color: var(--public-text);
    font-weight: 600;
}

/* --------------------------------------------------------------------
   12. EMPTY STATES
   -------------------------------------------------------------------- */
.public-empty-state {
    text-align: center;
    padding: 3.5rem 1.5rem;
    background-color: #FFFFFF;
    border: 1px dashed var(--public-border);
    border-radius: var(--public-radius-lg);
}

.public-empty-state-icon {
    width: 4rem;
    height: 4rem;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--public-radius-full);
    background-color: var(--public-surface-muted);
    color: var(--public-primary);
    font-size: 1.75rem;
}

/* --------------------------------------------------------------------
   13. FOOTER STYLING (BLACK EDITORIAL #090909)
   -------------------------------------------------------------------- */
.public-footer {
    background-color: #090909;
    color: #D6D3D1;
    border-top: 1px solid #2E2924;
    margin-top: auto;
}

.public-footer-heading {
    color: #FFFFFF;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1.25rem;
}

.public-footer-link {
    color: #D6D3D1;
    text-decoration: none;
    font-size: 0.875rem;
    line-height: 1.6;
    transition: var(--public-transition);
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.public-footer-link:hover {
    color: #F2D8B7;
    transform: translateX(2px);
}

.public-social-btn {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--public-radius-full);
    background-color: #1A1714;
    color: #D6D3D1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--public-transition);
    text-decoration: none;
    border: 1px solid #2E2924;
}

.public-social-btn:hover {
    background-color: var(--public-primary);
    color: #FFFFFF;
    border-color: var(--public-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(var(--public-primary-rgb), 0.4);
}

/* --------------------------------------------------------------------
   14. ANIMATIONS & MICRO-INTERACTIONS
   -------------------------------------------------------------------- */
@keyframes alertFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes floatSlow {
    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-8px);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-float {
    animation: floatSlow 4s ease-in-out infinite;
}

/* Scroll reveal trigger class */
.reveal-init {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.reveal-visible {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------
   15. ACCESSIBILITY & PREFERS-REDUCED-MOTION
   -------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal-init {
        opacity: 1 !important;
        transform: none !important;
    }

    .animate-float,
    .public-card-hover:hover,
    .btn-public:hover {
        transform: none !important;
    }
}