/* ==========================================================================
   app.css — Global styles, variables, reset, typography, utilities
   one-bnb.fr — Vacation rental platform
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Primary palette — Terracotta */
    --color-primary: #C2704E;
    --color-primary-light: #D4845F;
    --color-primary-dark: #A85D3F;
    --color-primary-50: #FDF5F0;
    --color-primary-100: #FAE8DC;
    --color-primary-200: #F0D0BC;
    --color-primary-700: #8B4A30;
    --color-primary-900: #5C3220;

    /* Secondary — Olive */
    --color-secondary: #6B7F4E;
    --color-secondary-light: #8FA66D;
    --color-secondary-dark: #556840;
    --color-secondary-50: #F4F7EF;
    --color-secondary-100: #E5EDDA;

    /* Accent — Azure */
    --color-accent: #4A90A4;
    --color-accent-light: #6BB0C4;
    --color-accent-dark: #3A7488;
    --color-accent-50: #EFF7FA;
    --color-accent-100: #D9EDF4;

    /* Named Mediterranean tokens */
    --color-terracotta: #C2704E;
    --color-sand: #F5E6D3;
    --color-sand-light: #FAF3EB;
    --color-linen: #FDF8F3;
    --color-earth: #5C4A3A;
    --color-earth-dark: #3D2E22;
    --color-earth-darkest: #2C1F17;
    --color-clay: #9B8579;
    --color-sage: #A3B18A;
    --color-azure: #4A90A4;

    /* Semantic colors */
    --color-success: #22C55E;
    --color-success-light: #4ADE80;
    --color-success-dark: #16A34A;
    --color-success-50: #F0FDF4;

    --color-warning: #EAB308;
    --color-warning-light: #FACC15;
    --color-warning-dark: #CA8A04;
    --color-warning-50: #FEFCE8;

    --color-danger: #EF4444;
    --color-danger-light: #F87171;
    --color-danger-dark: #DC2626;
    --color-danger-50: #FEF2F2;

    --color-info: #4A90A4;
    --color-info-50: #EFF7FA;

    /* Neutrals — warm tinted */
    --color-white: #FFFCF7;
    --color-gray-50: #FAF3EB;
    --color-gray-100: #F5E6D3;
    --color-gray-200: #E8D5C4;
    --color-gray-300: #D4C0AD;
    --color-gray-400: #9B8579;
    --color-gray-500: #7A6B5D;
    --color-gray-600: #5C4A3A;
    --color-gray-700: #4A3A2C;
    --color-gray-800: #3D2E22;
    --color-gray-900: #2C1F17;
    --color-black: #1A120B;

    /* Typography */
    --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-display: 'Fraunces', Georgia, 'Times New Roman', serif;
    --font-family-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
        Consolas, "Liberation Mono", monospace;

    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 1.875rem;  /* 30px */
    --font-size-4xl: 2.25rem;   /* 36px */
    --font-size-5xl: 3rem;      /* 48px */

    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing scale */
    --space-0: 0;
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */

    /* Border radius */
    --radius-sm: 0.25rem;
    --radius: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1.25rem;     /* 20px */
    --radius-xl: 1.5rem;      /* 24px */
    --radius-2xl: 2rem;       /* 32px */
    --radius-full: 9999px;

    /* Shadows — warm tinted */
    --shadow-xs: 0 1px 2px rgba(92, 74, 58, 0.05);
    --shadow-sm: 0 1px 3px rgba(92, 74, 58, 0.07), 0 1px 2px rgba(92, 74, 58, 0.04);
    --shadow: 0 4px 12px -2px rgba(92, 74, 58, 0.08);
    --shadow-md: 0 8px 24px -4px rgba(92, 74, 58, 0.1), 0 2px 8px -2px rgba(92, 74, 58, 0.05);
    --shadow-lg: 0 16px 40px -8px rgba(92, 74, 58, 0.12), 0 4px 12px -4px rgba(92, 74, 58, 0.05);
    --shadow-xl: 0 24px 56px -12px rgba(92, 74, 58, 0.16);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;

    /* Z-index scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 300;
    --z-modal: 400;
    --z-popover: 500;
    --z-tooltip: 600;
    --z-toast: 700;

    /* Container widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1440px;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-gray-800);
    background-color: var(--color-linen);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

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

a:hover {
    color: var(--color-primary-dark);
}

ul,
ol {
    list-style: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
    width: 100%;
}

fieldset {
    border: none;
}

hr {
    border: none;
    border-top: 1px solid var(--color-gray-200);
    margin: var(--space-6) 0;
}

/* Remove autofill styles */
input:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 1000px var(--color-white) inset;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-display);
    font-weight: 400;
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
    letter-spacing: -0.01em;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); font-family: var(--font-family); font-weight: var(--font-weight-semibold); }

p {
    margin-bottom: var(--space-4);
    color: var(--color-gray-700);
}

p:last-child {
    margin-bottom: 0;
}

strong, b {
    font-weight: var(--font-weight-semibold);
}

small {
    font-size: var(--font-size-sm);
}

.text-muted {
    color: var(--color-gray-500);
}

.text-lead {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-gray-600);
}

code {
    font-family: var(--font-family-mono);
    font-size: 0.875em;
    background-color: var(--color-gray-100);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
}

blockquote {
    border-left: 4px solid var(--color-primary);
    padding: var(--space-4) var(--space-6);
    margin: var(--space-6) 0;
    background-color: var(--color-gray-50);
    color: var(--color-gray-700);
    font-style: italic;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */

/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }
.align-center { align-items: center; }
.align-stretch { align-items: stretch; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Text alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Text transform */
.text-uppercase { text-transform: uppercase; }
.text-lowercase { text-transform: lowercase; }
.text-capitalize { text-transform: capitalize; }

/* Text size */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }

/* Font weight */
.fw-light { font-weight: var(--font-weight-light); }
.fw-normal { font-weight: var(--font-weight-normal); }
.fw-medium { font-weight: var(--font-weight-medium); }
.fw-semibold { font-weight: var(--font-weight-semibold); }
.fw-bold { font-weight: var(--font-weight-bold); }

/* Colors */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-white { color: var(--color-white); }
.text-dark { color: var(--color-gray-900); }
.text-gray { color: var(--color-gray-500); }

.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-accent { background-color: var(--color-accent); }
.bg-success { background-color: var(--color-success); }
.bg-warning { background-color: var(--color-warning); }
.bg-danger { background-color: var(--color-danger); }
.bg-white { background-color: var(--color-white); }
.bg-light { background-color: var(--color-sand-light); }
.bg-gray-100 { background-color: var(--color-gray-100); }

/* Margin */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }

/* Width / Height */
.w-full { width: 100%; }
.w-auto { width: auto; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; top: 0; }

/* Border */
.border { border: 1px solid var(--color-gray-200); }
.border-top { border-top: 1px solid var(--color-gray-200); }
.border-bottom { border-bottom: 1px solid var(--color-gray-200); }
.rounded { border-radius: var(--radius); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadow */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-none { box-shadow: none; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* Opacity */
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* Truncation */
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Visibility */
.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;
}

/* --------------------------------------------------------------------------
   Base Container
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }

/* --------------------------------------------------------------------------
   Selection styling
   -------------------------------------------------------------------------- */
::selection {
    background-color: var(--color-primary-200);
    color: var(--color-primary-900);
}

/* --------------------------------------------------------------------------
   Focus styles (accessibility)
   -------------------------------------------------------------------------- */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

::-webkit-scrollbar-track {
    background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
}

/* --------------------------------------------------------------------------
   Page transitions
   -------------------------------------------------------------------------- */
.fade-in {
    animation: fadeIn var(--transition-slow) ease-in;
}

.slide-up {
    animation: slideUp var(--transition-slow) ease-out;
}

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

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Loading spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

/* --------------------------------------------------------------------------
   Body scroll lock (for modals)
   -------------------------------------------------------------------------- */
body.no-scroll {
    overflow: hidden;
}

/* --------------------------------------------------------------------------
   Inline flash messages (in-page alerts)
   -------------------------------------------------------------------------- */
.flash {
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.flash.flash-success {
    background-color: var(--color-success-50);
    border-left: 4px solid var(--color-success);
    color: var(--color-success-dark);
}

.flash.flash-error {
    background-color: var(--color-danger-50);
    border-left: 4px solid var(--color-danger);
    color: var(--color-danger-dark);
}

.flash.flash-warning {
    background-color: var(--color-warning-50);
    border-left: 4px solid var(--color-warning);
    color: var(--color-warning-dark);
}

.flash.flash-info {
    background-color: var(--color-info-50);
    border-left: 4px solid var(--color-info);
    color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   Flash messages / Toasts (floating notifications)
   -------------------------------------------------------------------------- */
.flash-container {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 420px;
    width: 100%;
}

.flash-message {
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    animation: slideInRight var(--transition-slow) ease-out;
    position: relative;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.flash-message.flash-success {
    background-color: var(--color-success-50);
    border-left: 4px solid var(--color-success);
    color: var(--color-success-dark);
}

.flash-message.flash-error {
    background-color: var(--color-danger-50);
    border-left: 4px solid var(--color-danger);
    color: var(--color-danger-dark);
}

.flash-message.flash-warning {
    background-color: var(--color-warning-50);
    border-left: 4px solid var(--color-warning);
    color: var(--color-warning-dark);
}

.flash-message.flash-info {
    background-color: var(--color-info-50);
    border-left: 4px solid var(--color-info);
    color: var(--color-primary-dark);
}

.flash-message .flash-close {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    padding: var(--space-1);
    cursor: pointer;
    opacity: 0.6;
    font-size: var(--font-size-lg);
    line-height: 1;
    background: none;
    border: none;
    color: inherit;
}

.flash-message .flash-close:hover {
    opacity: 1;
}

.flash-message.flash-hiding {
    animation: slideOutRight var(--transition) ease-in forwards;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOutRight {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100%); }
}

/* --------------------------------------------------------------------------
   Cookie Consent Banner
   -------------------------------------------------------------------------- */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--space-6);
    z-index: var(--z-toast);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    transform: translateY(100%);
    transition: transform var(--transition-slow);
}

.cookie-banner.cookie-banner--visible {
    transform: translateY(0);
}

.cookie-banner__content {
    max-width: var(--container-xl);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.cookie-banner__text {
    flex: 1;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    color: var(--color-gray-300);
}

.cookie-banner__text a {
    color: var(--color-primary-light);
    text-decoration: underline;
}

.cookie-banner__actions {
    display: flex;
    gap: var(--space-3);
    flex-shrink: 0;
}