/* ============================================================
   KOUBA BTP — Feuille de style principale
   ------------------------------------------------------------
   Ordre :
   1. Variables (couleurs charte, dark/light)
   2. Reset & base
   3. Typographie
   4. Layout (container, sections)
   5. Boutons
   6. Formulaires
   7. Header & navigation
   8. Footer
   9. WhatsApp flottant
   10. Utilitaires
   11. Animations
   12. Responsive
   ============================================================ */

/* ============================================================
   1. VARIABLES — CHARTE KOUBA BTP
   ============================================================ */
:root {
    /* Couleurs de marque (extraites du logo) */
    --kouba-green:        #3CB44A;
    --kouba-green-dark:   #2E8E3A;
    --kouba-green-light:  #6FCF7A;
    --kouba-orange:       #F57C1F;
    --kouba-orange-dark:  #D6630F;
    --kouba-orange-light: #FFA85C;
    --kouba-black:        #111111;
    --kouba-white:        #FFFFFF;
    --kouba-gray-light:   #F7F7F5;
    --kouba-gray:         #E5E5E2;
    --kouba-gray-dark:    #2A2A2A;
    --kouba-gray-darker:  #1A1A1A;

    /* Sémantique */
    --color-success: #3CB44A;
    --color-error:   #E63946;
    --color-warning: #F5A623;
    --color-info:    #3B82F6;

    /* Typographie */
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;
    --font-mono:    'JetBrains Mono', 'Courier New', monospace;

    /* Tailles de police (fluides) */
    --fs-xs:   0.75rem;    /* 12px */
    --fs-sm:   0.875rem;   /* 14px */
    --fs-base: 1rem;       /* 16px */
    --fs-md:   1.125rem;   /* 18px */
    --fs-lg:   1.375rem;   /* 22px */
    --fs-xl:   1.75rem;    /* 28px */
    --fs-2xl:  2.25rem;    /* 36px */
    --fs-3xl:  3rem;       /* 48px */
    --fs-4xl:  3.75rem;    /* 60px */

    /* Espacements */
    --sp-1:  0.25rem;
    --sp-2:  0.5rem;
    --sp-3:  0.75rem;
    --sp-4:  1rem;
    --sp-5:  1.5rem;
    --sp-6:  2rem;
    --sp-7:  3rem;
    --sp-8:  4rem;
    --sp-9:  6rem;

    /* Container */
    --container-max: 1280px;
    --container-pad: 1.25rem;

    /* Rayons */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Ombres */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
    --shadow-xl: 0 24px 48px rgba(0,0,0,0.16);

    /* Transitions */
    --t-fast:   0.15s ease;
    --t-normal: 0.3s ease;
    --t-slow:   0.6s ease;

    /* Header */
    --header-h: 76px;
}

/* ============================================================
   THÈME SOMBRE (par défaut)
   ============================================================ */
[data-theme="dark"] {
    --bg-primary:    #0F0F0F;
    --bg-secondary:  #171717;
    --bg-elevated:   #1F1F1F;
    --bg-card:       #1B1B1B;
    --bg-input:      #1A1A1A;
    --bg-hover:      #252525;

    --text-primary:   #F5F5F3;
    --text-secondary: #B8B8B3;
    --text-muted:     #7A7A75;
    --text-inverse:   #111111;

    --border-color:    #2A2A2A;
    --border-strong:   #3A3A3A;

    --header-bg:      rgba(15, 15, 15, 0.85);
    --footer-bg:      #0A0A0A;
    --overlay:        rgba(0,0,0,0.75);

    color-scheme: dark;
}

/* ============================================================
   THÈME CLAIR
   ============================================================ */
[data-theme="light"] {
    --bg-primary:    #FFFFFF;
    --bg-secondary:  #F7F7F5;
    --bg-elevated:   #FFFFFF;
    --bg-card:       #FFFFFF;
    --bg-input:      #F7F7F5;
    --bg-hover:      #EFEFEC;

    --text-primary:   #111111;
    --text-secondary: #4A4A48;
    --text-muted:     #7A7A75;
    --text-inverse:   #FFFFFF;

    --border-color:    #E5E5E2;
    --border-strong:   #D0D0CC;

    --header-bg:      rgba(255, 255, 255, 0.85);
    --footer-bg:      #111111;
    --overlay:        rgba(0,0,0,0.5);

    color-scheme: light;
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    line-height: 1.65;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background-color var(--t-normal), color var(--t-normal);
}

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

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

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

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

ul, ol {
    list-style: none;
}

::selection {
    background: var(--kouba-orange);
    color: #FFFFFF;
}

/* Skip link accessibilité */
.skip-link {
    position: absolute;
    top: -100px;
    left: 12px;
    background: var(--kouba-orange);
    color: #fff;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    z-index: 9999;
    font-weight: 600;
    transition: top var(--t-fast);
}
.skip-link:focus { top: 12px; }

/* Scrollbar personnalisée */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--kouba-orange); }

/* ============================================================
   3. TYPOGRAPHIE
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw + 1rem, var(--fs-4xl)); }
h2 { font-size: clamp(1.75rem, 3vw + 1rem, var(--fs-3xl)); }
h3 { font-size: clamp(1.25rem, 2vw + 0.5rem, var(--fs-xl)); }
h4 { font-size: var(--fs-lg); }
h5 { font-size: var(--fs-md); }
h6 { font-size: var(--fs-base); }

p { color: var(--text-secondary); }

strong, b { font-weight: 700; color: var(--text-primary); }

a:hover { color: var(--kouba-orange); }

/* Titres décoratifs avec barre accent */
.section-title {
    position: relative;
    display: inline-block;
    margin-bottom: var(--sp-3);
}
.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--kouba-green), var(--kouba-orange));
    border-radius: var(--radius-full);
}

.section-subtitle {
    color: var(--text-secondary);
    max-width: 640px;
    margin-top: var(--sp-5);
    font-size: var(--fs-md);
}

.text-center { text-align: center; }
.text-center .section-title::after { left: 50%; transform: translateX(-50%); }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

/* ============================================================
   4. LAYOUT
   ============================================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--container-pad);
    padding-right: var(--container-pad);
}

.section {
    padding: var(--sp-9) 0;
    position: relative;
}
.section-sm { padding: var(--sp-7) 0; }
.section-lg { padding: calc(var(--sp-9) + var(--sp-5)) 0; }

.section-alt { background: var(--bg-secondary); }

/* Grille générique */
.grid {
    display: grid;
    gap: var(--sp-5);
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ============================================================
   5. BOUTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2);
    padding: 0.85rem 1.75rem;
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
    white-space: nowrap;
    transition: all var(--t-normal);
    position: relative;
    overflow: hidden;
}

.btn:focus-visible {
    outline: 2px solid var(--kouba-orange);
    outline-offset: 3px;
}

.btn-primary {
    background: var(--kouba-orange);
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(245,124,31,0.3);
}
.btn-primary:hover {
    background: var(--kouba-orange-dark);
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(245,124,31,0.4);
}

.btn-secondary {
    background: var(--kouba-green);
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(60,180,74,0.3);
}
.btn-secondary:hover {
    background: var(--kouba-green-dark);
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(60,180,74,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-strong);
}
.btn-outline:hover {
    border-color: var(--kouba-orange);
    color: var(--kouba-orange);
    background: rgba(245,124,31,0.05);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
}
.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-white {
    background: #FFFFFF;
    color: var(--kouba-black);
}
.btn-white:hover {
    background: var(--kouba-gray-light);
    color: var(--kouba-black);
}

.btn-sm { padding: 0.55rem 1.1rem; font-size: var(--fs-xs); }
.btn-lg { padding: 1.1rem 2.25rem; font-size: var(--fs-base); }

.btn:disabled, .btn.is-loading {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Loader dans le bouton */
.btn.is-loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: btn-spin 0.7s linear infinite;
}
@keyframes btn-spin { to { transform: rotate(360deg); } }

/* ============================================================
   6. FORMULAIRES
   ============================================================ */
.form-group {
    margin-bottom: var(--sp-5);
    position: relative;
}

.form-label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--sp-2);
}
.form-label .required { color: var(--color-error); margin-left: 2px; }

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-input);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--fs-base);
    color: var(--text-primary);
    transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}
.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--kouba-orange);
    box-shadow: 0 0 0 3px rgba(245,124,31,0.15);
    background: var(--bg-elevated);
}

.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(230,57,70,0.15);
}

.form-textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.6;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none' stroke='%237A7A75' stroke-width='2'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-help {
    display: block;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    margin-top: var(--sp-2);
}

.form-error {
    display: block;
    font-size: var(--fs-xs);
    color: var(--color-error);
    margin-top: var(--sp-2);
    font-weight: 500;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--sp-4);
}

/* Groupe de radios / checkboxes */
.form-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-3);
}
.form-radio {
    position: relative;
}
.form-radio input { position: absolute; opacity: 0; }
.form-radio label {
    display: inline-block;
    padding: 0.6rem 1.1rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--fs-sm);
    font-weight: 500;
    transition: all var(--t-fast);
}
.form-radio input:checked + label {
    background: var(--kouba-orange);
    border-color: var(--kouba-orange);
    color: #FFFFFF;
}

/* Checkbox */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-3);
    cursor: pointer;
    font-size: var(--fs-sm);
    color: var(--text-secondary);
}
.form-checkbox input[type="checkbox"] {
    appearance: none;
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--border-strong);
    border-radius: var(--radius-sm);
    cursor: pointer;
    position: relative;
    transition: all var(--t-fast);
    margin-top: 2px;
}
.form-checkbox input[type="checkbox"]:checked {
    background: var(--kouba-orange);
    border-color: var(--kouba-orange);
}
.form-checkbox input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 6px;
    height: 11px;
    border: solid #FFF;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Zone d'upload */
.upload-zone {
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-md);
    padding: var(--sp-5);
    text-align: center;
    cursor: pointer;
    transition: all var(--t-fast);
    background: var(--bg-input);
}
.upload-zone:hover,
.upload-zone.is-dragover {
    border-color: var(--kouba-orange);
    background: rgba(245,124,31,0.05);
}
.upload-zone-icon { font-size: 2rem; margin-bottom: var(--sp-2); opacity: 0.5; }
.upload-zone-text { font-size: var(--fs-sm); color: var(--text-secondary); }
.upload-zone-text strong { color: var(--kouba-orange); }

.upload-list {
    margin-top: var(--sp-3);
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
}
.upload-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3);
    padding: var(--sp-3);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
}
.upload-item-info { display: flex; align-items: center; gap: var(--sp-2); overflow: hidden; }
.upload-item-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-item-size { color: var(--text-muted); font-size: var(--fs-xs); }
.upload-item-remove {
    color: var(--color-error);
    font-size: var(--fs-lg);
    line-height: 1;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: background var(--t-fast);
}
.upload-item-remove:hover { background: rgba(230,57,70,0.1); }

/* ============================================================
   7. HEADER & NAVIGATION
   ============================================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: var(--header-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--t-normal);
}
.site-header.is-scrolled {
    height: 64px;
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--sp-4);
}

/* Logo */
.header-logo {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-shrink: 0;
}
.header-logo img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    transition: transform var(--t-normal);
}
.header-logo:hover img { transform: rotate(-5deg) scale(1.05); }
.header-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.header-logo-text strong {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--text-primary);
}
.header-logo-text em {
    font-style: normal;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--kouba-orange);
}

/* Navigation */
.main-nav ul {
    display: flex;
    align-items: center;
    gap: var(--sp-5);
}
.main-nav a {
    position: relative;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--sp-2) 0;
    transition: color var(--t-fast);
}
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--kouba-orange);
    transition: width var(--t-normal);
}
.main-nav a:hover,
.main-nav a.is-active {
    color: var(--text-primary);
}
.main-nav a:hover::after,
.main-nav a.is-active::after {
    width: 100%;
}

/* Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

/* Sélecteur de langue */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--fs-xs);
    font-weight: 600;
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--bg-input);
}
.lang-btn {
    padding: 4px 8px;
    color: var(--text-muted);
    border-radius: var(--radius-full);
    transition: all var(--t-fast);
}
.lang-btn.is-active {
    background: var(--kouba-orange);
    color: #FFFFFF;
}
.lang-btn:hover:not(.is-active) { color: var(--text-primary); }
.lang-sep { color: var(--text-muted); opacity: 0.4; }

/* Toggle thème */
.theme-toggle {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-secondary);
    transition: all var(--t-fast);
}
.theme-toggle:hover {
    color: var(--kouba-orange);
    border-color: var(--kouba-orange);
    transform: rotate(15deg);
}
.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    transition: opacity var(--t-fast), transform var(--t-fast);
}
[data-theme="dark"] .theme-toggle .icon-sun  { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* CTA header */
.header-cta svg { flex-shrink: 0; }

/* Burger mobile */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: var(--radius-md);
}
.nav-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--t-normal);
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   8. FOOTER
   ============================================================ */
.site-footer {
    position: relative;
    background: var(--footer-bg);
    color: #D5D5D0;
    margin-top: var(--sp-9);
    overflow: hidden;
}
[data-theme="dark"] .site-footer { background: #0A0A0A; }
[data-theme="light"] .site-footer { background: #111111; }

.footer-accent {
    height: 4px;
    background: linear-gradient(90deg, var(--kouba-green), var(--kouba-orange));
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: var(--sp-7);
    padding: var(--sp-9) 0 var(--sp-7);
}

.footer-col { min-width: 0; }

.footer-identity .footer-logo img {
    width: 72px;
    height: 72px;
    object-fit: contain;
    margin-bottom: var(--sp-4);
    filter: brightness(1.1);
}

.footer-tagline {
    font-family: var(--font-heading);
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--kouba-orange);
    margin-bottom: var(--sp-3);
}

.footer-desc {
    font-size: var(--fs-sm);
    line-height: 1.7;
    color: #9A9A95;
    margin-bottom: var(--sp-5);
}

.footer-social {
    display: flex;
    gap: var(--sp-3);
}
.social-link {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.06);
    color: #D5D5D0;
    border: 1px solid rgba(255,255,255,0.08);
    transition: all var(--t-fast);
}
.social-link:hover {
    background: var(--kouba-orange);
    color: #FFFFFF;
    transform: translateY(-3px);
    border-color: var(--kouba-orange);
}
.social-whatsapp:hover {
    background: #25D366;
    border-color: #25D366;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: var(--fs-base);
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: var(--sp-5);
    position: relative;
    padding-bottom: var(--sp-3);
}
.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 32px;
    height: 2px;
    background: var(--kouba-orange);
}

.footer-links li { margin-bottom: var(--sp-3); }
.footer-links a {
    font-size: var(--fs-sm);
    color: #9A9A95;
    transition: all var(--t-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
}
.footer-links a::before {
    content: '→';
    opacity: 0;
    transform: translateX(-6px);
    transition: all var(--t-fast);
    color: var(--kouba-orange);
}
.footer-links a:hover {
    color: #FFFFFF;
    padding-left: 6px;
}
.footer-links a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-contact li {
    display: flex;
    gap: var(--sp-3);
    font-size: var(--fs-sm);
    color: #9A9A95;
    line-height: 1.6;
    margin-bottom: var(--sp-3);
}
.footer-icon {
    flex-shrink: 0;
    font-size: 1rem;
    line-height: 1.5;
}
.footer-contact a {
    color: #9A9A95;
}
.footer-contact a:hover { color: var(--kouba-orange); }

/* Newsletter dans footer */
.newsletter-block {
    margin-top: var(--sp-5);
    padding-top: var(--sp-5);
    border-top: 1px solid rgba(255,255,255,0.08);
}
.newsletter-title {
    font-size: var(--fs-base);
    color: #FFFFFF;
    margin-bottom: var(--sp-2);
}
.newsletter-subtitle {
    font-size: var(--fs-xs);
    color: #9A9A95;
    margin-bottom: var(--sp-4);
    line-height: 1.5;
}
.newsletter-fields {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
    margin-bottom: var(--sp-3);
}
.newsletter-input {
    width: 100%;
    padding: 0.7rem 1rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    color: #FFFFFF;
    font-size: var(--fs-sm);
    transition: all var(--t-fast);
}
.newsletter-input::placeholder { color: #7A7A75; }
.newsletter-input:focus {
    outline: none;
    border-color: var(--kouba-orange);
    background: rgba(255,255,255,0.08);
}
.newsletter-submit {
    width: 100%;
    font-size: var(--fs-sm);
}
.newsletter-feedback {
    font-size: var(--fs-xs);
    margin-top: var(--sp-2);
    min-height: 18px;
}
.newsletter-feedback.is-success { color: var(--kouba-green-light); }
.newsletter-feedback.is-error   { color: #FF7B7B; }

/* Footer bottom */
.footer-bottom {
    background: rgba(0,0,0,0.4);
    padding: var(--sp-4) 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    flex-wrap: wrap;
    font-size: var(--fs-xs);
    color: #7A7A75;
}
.footer-legal {
    display: flex;
    gap: var(--sp-5);
}
.footer-legal a {
    color: #7A7A75;
    transition: color var(--t-fast);
}
.footer-legal a:hover { color: var(--kouba-orange); }

/* ============================================================
   9. WHATSAPP FLOTTANT
   ============================================================ */
.whatsapp-float {
    position: fixed;
    right: 22px;
    bottom: 22px;
    display: inline-flex;
    align-items: center;
    gap: var(--sp-3);
    padding: 14px 20px;
    background: #25D366;
    color: #FFFFFF;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--fs-sm);
    box-shadow: 0 8px 24px rgba(37,211,102,0.4);
    z-index: 900;
    transition: all var(--t-normal);
    overflow: visible;
}
.whatsapp-float:hover {
    color: #FFFFFF;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 32px rgba(37,211,102,0.55);
}
.whatsapp-float svg { flex-shrink: 0; }

/* Pulse animé */
.whatsapp-pulse {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-full);
    background: #25D366;
    animation: wa-pulse 2s infinite;
    z-index: -1;
}
@keyframes wa-pulse {
    0%   { transform: scale(1);   opacity: 0.7; }
    70%  { transform: scale(1.4); opacity: 0; }
    100% { transform: scale(1.4); opacity: 0; }
}

.whatsapp-label { white-space: nowrap; }

/* ============================================================
   10. UTILITAIRES
   ============================================================ */
.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;
}

.mt-1 { margin-top: var(--sp-1); }
.mt-2 { margin-top: var(--sp-2); }
.mt-3 { margin-top: var(--sp-3); }
.mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); }
.mb-1 { margin-bottom: var(--sp-1); }
.mb-2 { margin-bottom: var(--sp-2); }
.mb-3 { margin-bottom: var(--sp-3); }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-5 { margin-bottom: var(--sp-5); }

/* Badge / Tag */
.badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: var(--fs-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: var(--bg-hover);
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}
.badge-green  { background: rgba(60,180,74,0.15);  color: var(--kouba-green); }
.badge-orange { background: rgba(245,124,31,0.15); color: var(--kouba-orange); }
.badge-red    { background: rgba(230,57,70,0.15);  color: var(--color-error); }

/* Card générique */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--sp-5);
    transition: all var(--t-normal);
}
.card:hover {
    border-color: var(--kouba-orange);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Alertes */
.alert {
    padding: var(--sp-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--sp-4);
    font-size: var(--fs-sm);
    border-left: 4px solid;
}
.alert-success { background: rgba(60,180,74,0.1);  border-color: var(--color-success); color: var(--kouba-green); }
.alert-error   { background: rgba(230,57,70,0.1);  border-color: var(--color-error);   color: var(--color-error); }
.alert-warning { background: rgba(245,166,35,0.1); border-color: var(--color-warning); color: var(--color-warning); }
.alert-info    { background: rgba(59,130,246,0.1); border-color: var(--color-info);    color: var(--color-info); }

/* ============================================================
   11. ANIMATIONS (reveal au scroll)
   ============================================================ */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}
[data-reveal="left"]  { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal="zoom"]  { transform: scale(0.92); }
[data-reveal="left"].is-visible,
[data-reveal="right"].is-visible,
[data-reveal="zoom"].is-visible {
    transform: translateX(0) scale(1);
}

[data-reveal-delay="1"] { transition-delay: 0.1s; }
[data-reveal-delay="2"] { transition-delay: 0.2s; }
[data-reveal-delay="3"] { transition-delay: 0.3s; }
[data-reveal-delay="4"] { transition-delay: 0.4s; }
[data-reveal-delay="5"] { transition-delay: 0.5s; }

/* Respect des préférences */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    [data-reveal] { opacity: 1; transform: none; }
}

/* ============================================================
   12. PAGES D'ERREUR
   ============================================================ */
.error-section {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-9) 0;
    margin-top: var(--header-h);
}
.error-container {
    text-align: center;
    max-width: 560px;
}
.error-code {
    font-family: var(--font-heading);
    font-size: clamp(5rem, 15vw, 10rem);
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, var(--kouba-green), var(--kouba-orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--sp-4);
}
.error-container h1 { margin-bottom: var(--sp-4); }
.error-container p  { margin-bottom: var(--sp-6); font-size: var(--fs-md); }

/* ============================================================
   13. RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
}

@media (max-width: 900px) {
    :root { --header-h: 68px; }

    .nav-toggle { display: flex; }

    .main-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--t-normal);
        box-shadow: var(--shadow-lg);
    }
    .main-nav.is-open { max-height: 400px; }
    .main-nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: var(--sp-4);
    }
    .main-nav a {
        display: block;
        padding: var(--sp-4);
        font-size: var(--fs-base);
        border-bottom: 1px solid var(--border-color);
    }
    .main-nav a::after { display: none; }
    .main-nav li:last-child a { border-bottom: none; }

    .header-cta span { display: none; }
    .header-cta { padding: 0.55rem 0.75rem; }

    .header-logo-text em { display: none; }
}

@media (max-width: 640px) {
    :root {
        --container-pad: 1rem;
        --sp-9: 4rem;
        --sp-8: 2.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--sp-6);
        padding: var(--sp-7) 0 var(--sp-5);
    }
    .footer-bottom-inner { justify-content: center; text-align: center; }

    .whatsapp-float {
        right: 14px;
        bottom: 14px;
        padding: 12px;
        border-radius: var(--radius-full);
    }
    .whatsapp-label { display: none; }

    .lang-switch { padding: 2px 6px; }
    .lang-btn { padding: 3px 6px; font-size: 0.7rem; }
}

/* ============================================================
   FIN
   ============================================================ */