/* ===================================================================
   WEBSITE-PROFESSIONAL — STYLE.CSS
   Thème : "Tech & Premium" — fonds sombres, accents cyan électrique,
           transitions fluides, micro-interactions raffinées.

   Organisation :
     1. Variables (custom properties)
     2. Reset & base
     3. Décors d'arrière-plan (grille, halos, grain)
     4. Typographie & utilitaires de section
     5. Header & navigation
     6. Hero (titre + terminal décoratif)
     7. Boutons (primary / secondary)
     8. Cartes services
     9. Cartes packs (avec mise en avant featured)
    10. Processus (timeline)
    11. Portfolio
    12. Formulaire de contact
    13. Bouton flottant WhatsApp
    14. Animations & révélations au scroll
    15. Footer
    16. Responsive fine-tuning
   =================================================================== */


/* ===================================================================
   1. VARIABLES (CUSTOM PROPERTIES)
   Centralisées pour faciliter le rebranding éventuel.
   =================================================================== */
:root {
    /* Palette principale */
    --color-bg:         #0a0f1e;
    --color-bg-deep:    #060912;
    --color-panel:      #111827;
    --color-panel-hi:   #1a2436;
    --color-border:     #1f2937;
    --color-border-hi:  #2d3a52;

    --color-accent:     #00e5d1;
    --color-accent-2:   #7c5cff;
    --color-accent-glow: rgba(0, 229, 209, 0.35);

    --color-text:       #e5e7eb;
    --color-text-soft:  #cbd5e1;
    --color-muted:      #94a3b8;

    /* Rayons & espacements */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* Transitions */
    --easing-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --easing-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Ombres */
    --shadow-soft:  0 10px 40px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow:  0 0 60px -10px var(--color-accent-glow);
}


/* ===================================================================
   2. RESET LÉGER & BASE
   Tailwind fait déjà beaucoup ; on complète au minimum.
   =================================================================== */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* compense le header fixe lors des ancres */
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-feature-settings: "ss01", "cv11";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Sélection texte aux couleurs de la marque */
::selection {
    background-color: var(--color-accent);
    color: var(--color-bg-deep);
}

/* Scrollbar custom (Webkit) — discrète mais cohérente */
::-webkit-scrollbar           { width: 10px; height: 10px; }
::-webkit-scrollbar-track     { background: var(--color-bg-deep); }
::-webkit-scrollbar-thumb     { background: var(--color-border-hi); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }


/* ===================================================================
   3. DÉCORS D'ARRIÈRE-PLAN
   Couches fixes (position: fixed) pour rester visibles au scroll
   sans recalcul de layout.
   =================================================================== */
.bg-decoration {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* Grille subtile en fond */
.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

/* Halos lumineux animés (gradient blobs) */
.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.25;
    animation: floatGlow 25s ease-in-out infinite;
}
.bg-glow-1 {
    top: -10%;
    left: -10%;
    background: radial-gradient(circle, var(--color-accent), transparent 70%);
}
.bg-glow-2 {
    bottom: -15%;
    right: -10%;
    background: radial-gradient(circle, var(--color-accent-2), transparent 70%);
    animation-delay: -12s;
}
@keyframes floatGlow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(60px, -40px) scale(1.1); }
    66%      { transform: translate(-40px, 50px) scale(0.95); }
}

/* Grain texture pour casser le rendu numérique */
.bg-noise {
    position: absolute;
    inset: 0;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
    mix-blend-mode: overlay;
}

/* On s'assure que le contenu reste au-dessus des décors */
main, header, footer { position: relative; z-index: 1; }


/* ===================================================================
   4. TYPOGRAPHIE & UTILITAIRES DE SECTION
   =================================================================== */
.section-eyebrow {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-accent);
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
    position: relative;
}
.section-eyebrow::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 1rem;
    height: 1px;
    background: var(--color-accent);
}

.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2rem, 4.5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.section-subtitle {
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--color-muted);
    max-width: 38rem;
}

/* Texte avec dégradé (utilisé sur les mots-clés des titres) */
.hero-gradient-text {
    background: linear-gradient(120deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline;
}


/* ===================================================================
   5. HEADER & NAVIGATION
   =================================================================== */
#site-header {
    background: rgba(10, 15, 30, 0);
    backdrop-filter: blur(0);
    transition: background-color 0.3s var(--easing-smooth),
                backdrop-filter 0.3s var(--easing-smooth),
                border-color 0.3s var(--easing-smooth);
    border-bottom: 1px solid transparent;
}
/* État "scrollé" (classe ajoutée par JS) */
#site-header.is-scrolled {
    background: rgba(10, 15, 30, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom-color: var(--color-border);
}

/* Logo mark — petit carré aux accents de marque */
.logo-mark {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px -4px var(--color-accent-glow);
}
.logo-mark-inner {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    color: var(--color-bg-deep);
    font-size: 1.1rem;
}

/* Liens de nav */
.nav-link {
    position: relative;
    color: var(--color-text-soft);
    transition: color 0.2s var(--easing-smooth);
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s var(--easing-smooth);
}
.nav-link:hover { color: var(--color-text); }
.nav-link:hover::after { width: 100%; }


/* ===================================================================
   6. HERO — terminal décoratif
   =================================================================== */
.hero-visual {
    perspective: 1000px;
}

.hero-terminal {
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft), 0 0 80px -20px var(--color-accent-glow);
    transform: rotate3d(1, 1, 0, 4deg);
    transition: transform 0.5s var(--easing-smooth);
}
.hero-terminal:hover {
    transform: rotate3d(1, 1, 0, 0deg);
}

.hero-terminal-bar {
    background: var(--color-bg-deep);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.hero-terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.hero-terminal-body {
    padding: 1.5rem;
    color: var(--color-text-soft);
}
.hero-terminal-body > div {
    margin-bottom: 0.4rem;
    animation: fadeInUp 0.6s var(--easing-smooth) backwards;
}
.hero-terminal-body > div:nth-child(1) { animation-delay: 0.2s; }
.hero-terminal-body > div:nth-child(2) { animation-delay: 0.6s; }
.hero-terminal-body > div:nth-child(3) { animation-delay: 1.0s; }
.hero-terminal-body > div:nth-child(4) { animation-delay: 1.4s; }
.hero-terminal-body > div:nth-child(5) { animation-delay: 1.8s; }
.hero-terminal-body > div:nth-child(6) { animation-delay: 2.2s; }
.hero-terminal-body > div:nth-child(7) { animation-delay: 2.6s; }

/* Curseur clignotant */
.hero-cursor {
    display: inline-block;
    color: var(--color-accent);
    animation: blink 1s steps(2, end) infinite;
}
@keyframes blink {
    0%, 50%   { opacity: 1; }
    50.01%, 100% { opacity: 0; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}


/* ===================================================================
   7. BOUTONS
   =================================================================== */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.25s var(--easing-smooth);
    text-decoration: none;
    border: 1px solid transparent;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

/* Bouton primaire (cyan/teal lumineux) */
.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg-deep);
    box-shadow: 0 8px 24px -8px var(--color-accent-glow);
}
.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.3) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s var(--easing-smooth);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px -8px var(--color-accent-glow);
}
.btn-primary:hover::before { transform: translateX(100%); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Bouton secondaire (outline) */
.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border-hi);
}
.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}


/* ===================================================================
   8. CARTES SERVICES
   =================================================================== */
.service-card {
    position: relative;
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    transition: all 0.35s var(--easing-smooth);
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%), var(--color-accent-glow), transparent 50%);
    opacity: 0;
    transition: opacity 0.35s var(--easing-smooth);
    pointer-events: none;
}
.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-hi);
    background: var(--color-panel-hi);
}
.service-card:hover::before { opacity: 0.4; }

.service-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(0, 229, 209, 0.08);
    border: 1px solid rgba(0, 229, 209, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: 1.25rem;
    transition: transform 0.35s var(--easing-bounce);
}
.service-card:hover .service-card-icon {
    transform: scale(1.1) rotate(-4deg);
}
.service-card-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}
.service-card-desc {
    font-size: 0.9375rem;
    color: var(--color-muted);
    line-height: 1.6;
}


/* ===================================================================
   9. CARTES PACKS — Cœur de l'offre commerciale
   =================================================================== */
.pack-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 2rem;
    border-radius: var(--radius-xl);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    transition: all 0.35s var(--easing-smooth);
    overflow: hidden;
}
.pack-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-border-hi);
}

/* Variante "featured" (pack mis en avant) */
.pack-card--featured {
    background: linear-gradient(180deg, var(--color-panel) 0%, rgba(0, 229, 209, 0.04) 100%);
    border-color: rgba(0, 229, 209, 0.4);
    box-shadow: 0 0 0 1px rgba(0, 229, 209, 0.2),
                0 20px 60px -20px var(--color-accent-glow);
}
.pack-card--featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
}

/* Étiquette "RECOMMANDÉ" */
.pack-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: var(--color-accent);
    color: var(--color-bg-deep);
}

/* En-tête du pack */
.pack-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px dashed var(--color-border);
}
.pack-tagline {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 0.5rem;
}
.pack-name {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}
.pack-target {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.5;
    margin-bottom: 1.25rem;
}

/* Prix */
.pack-price-label {
    font-size: 0.75rem;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}
.pack-price {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-text);
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}
.pack-price-currency {
    font-size: 1.25rem;
    color: var(--color-muted);
}

/* Liste de features */
.pack-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.75rem 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.pack-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.9375rem;
    color: var(--color-text-soft);
    line-height: 1.5;
}
.pack-features li svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    color: var(--color-accent);
    margin-top: 2px;
}

/* Boutons d'action du pack */
.pack-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}


/* ===================================================================
   10. PROCESSUS — TIMELINE
   =================================================================== */
.process-step {
    position: relative;
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    transition: all 0.3s var(--easing-smooth);
}
.process-step:hover {
    border-color: var(--color-accent);
    transform: translateY(-3px);
}

.process-step-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    display: block;
}

.process-step-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.process-step-desc {
    font-size: 0.9rem;
    color: var(--color-muted);
    line-height: 1.6;
}

/* Étape en surbrillance (acompte 20%) */
.process-step--highlight {
    border-color: var(--color-accent);
    background: linear-gradient(180deg, var(--color-panel), rgba(0, 229, 209, 0.05));
}


/* ===================================================================
   11. PORTFOLIO
   =================================================================== */
.portfolio-card {
    position: relative;
    border-radius: var(--radius-xl);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all 0.4s var(--easing-smooth);
    display: flex;
    flex-direction: column;
}
.portfolio-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-border-hi);
    box-shadow: var(--shadow-soft);
}

/* Visuel mock du projet (illustratif, non bitmap) */
.portfolio-visual {
    position: relative;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--color-bg-deep) 0%, var(--color-panel-hi) 100%);
    overflow: hidden;
    border-bottom: 1px solid var(--color-border);
}
.portfolio-visual::before {
    /* motif de grille décoratif */
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 229, 209, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 209, 0.08) 1px, transparent 1px);
    background-size: 30px 30px;
    mask-image: radial-gradient(circle at center, black, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black, transparent 80%);
}
.portfolio-visual-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    z-index: 1;
}
.portfolio-visual-emoji {
    font-size: 3.5rem;
    margin-bottom: 0.75rem;
    filter: drop-shadow(0 8px 24px var(--color-accent-glow));
}
.portfolio-visual-domain {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--color-accent);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: rgba(0, 229, 209, 0.08);
    border: 1px solid rgba(0, 229, 209, 0.25);
}

.portfolio-body {
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.portfolio-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 0.5rem;
}
.portfolio-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    line-height: 1.25;
}
.portfolio-desc {
    font-size: 0.9375rem;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex: 1;
}
.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: auto;
}
.portfolio-tech-chip {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--color-text-soft);
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    background: var(--color-bg-deep);
    border: 1px solid var(--color-border);
}


/* ===================================================================
   12. FORMULAIRE DE CONTACT
   =================================================================== */
.form-wrapper {
    padding: 2rem;
    border-radius: var(--radius-xl);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
}
@media (min-width: 1024px) {
    .form-wrapper { padding: 2.5rem; }
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-soft);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.form-input {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--color-bg-deep);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: all 0.2s var(--easing-smooth);
    -webkit-appearance: none;
    appearance: none;
}
.form-input::placeholder {
    color: #475569;
}
.form-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 229, 209, 0.15);
    background: var(--color-panel-hi);
}

/* Select custom (flèche personnalisée) */
select.form-input {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}
select.form-input option {
    background: var(--color-bg-deep);
    color: var(--color-text);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Checkbox custom */
.form-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    border: 1px solid var(--color-border-hi);
    border-radius: 4px;
    background: var(--color-bg-deep);
    cursor: pointer;
    position: relative;
    transition: all 0.2s var(--easing-smooth);
}
.form-checkbox:checked {
    background: var(--color-accent);
    border-color: var(--color-accent);
}
.form-checkbox:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid var(--color-bg-deep);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}
.form-checkbox:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 229, 209, 0.15);
}

/* Messages d'erreur */
.form-error {
    display: block;
    margin-top: 0.4rem;
    font-size: 0.8rem;
    color: #f87171;
    min-height: 1rem;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity 0.2s, transform 0.2s;
}
.form-group.has-error .form-error {
    opacity: 1;
    transform: translateY(0);
}
.form-group.has-error .form-input {
    border-color: #f87171;
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.12);
}

/* Honeypot (caché aux humains, visible aux bots maladroits) */
.hidden-honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

/* Zone de feedback (succès/erreur après soumission) */
.form-feedback {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    border: 1px solid;
}
.form-feedback.is-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.4);
    color: #6ee7b7;
}
.form-feedback.is-error {
    background: rgba(248, 113, 113, 0.1);
    border-color: rgba(248, 113, 113, 0.4);
    color: #fca5a5;
}

/* Cartes de contact direct (téléphone/whatsapp/email) */
.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.1rem 1.25rem;
    border-radius: var(--radius-md);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    text-decoration: none;
    color: inherit;
    transition: all 0.25s var(--easing-smooth);
}
.contact-card:hover {
    border-color: var(--color-accent);
    background: var(--color-panel-hi);
    transform: translateX(4px);
}
.contact-card-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: rgba(0, 229, 209, 0.08);
    border: 1px solid rgba(0, 229, 209, 0.2);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}


/* ===================================================================
   13. BOUTON FLOTTANT WHATSAPP
   =================================================================== */
.whatsapp-float {
    position: fixed;
    bottom: 1.25rem;
    right: 1.25rem;
    z-index: 40;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25D366;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px -8px rgba(37, 211, 102, 0.6);
    transition: transform 0.25s var(--easing-bounce);
}
.whatsapp-float::before {
    /* pulsation animée */
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: #25D366;
    animation: waPulse 2.5s ease-out infinite;
    z-index: -1;
}
@keyframes waPulse {
    0%   { transform: scale(1);   opacity: 0.6; }
    100% { transform: scale(1.8); opacity: 0; }
}
.whatsapp-float:hover {
    transform: scale(1.1) rotate(-8deg);
}


/* ===================================================================
   14. ANIMATIONS & RÉVÉLATIONS AU SCROLL
   Les éléments .reveal commencent invisibles et apparaissent quand
   l'IntersectionObserver (script.js) leur ajoute la classe .is-visible.
   =================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--easing-smooth),
                transform 0.7s var(--easing-smooth);
    will-change: opacity, transform;
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children — délais croissants pour les enfants directs */
.reveal[data-stagger] > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--easing-smooth),
                transform 0.6s var(--easing-smooth);
}
.reveal[data-stagger].is-visible > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0); }
.reveal[data-stagger].is-visible > *:nth-child(2) { transition-delay: 0.15s; opacity: 1; transform: translateY(0); }
.reveal[data-stagger].is-visible > *:nth-child(3) { transition-delay: 0.25s; opacity: 1; transform: translateY(0); }
.reveal[data-stagger].is-visible > *:nth-child(4) { transition-delay: 0.35s; opacity: 1; transform: translateY(0); }
.reveal[data-stagger].is-visible > *:nth-child(5) { transition-delay: 0.45s; opacity: 1; transform: translateY(0); }
.reveal[data-stagger].is-visible > *:nth-child(6) { transition-delay: 0.55s; opacity: 1; transform: translateY(0); }


/* Respect du préférence "mouvement réduit" */
@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;
    }
    .bg-glow { animation: none; }
}


/* ===================================================================
   15. FOOTER — styles légers, l'essentiel est dans Tailwind
   =================================================================== */
footer a {
    transition: color 0.2s var(--easing-smooth);
}


/* ===================================================================
   16. RESPONSIVE FINE-TUNING
   =================================================================== */

/* Mobile : ajustements de taille du hero */
@media (max-width: 640px) {
    .pack-card { padding: 1.5rem; }
    .pack-price { font-size: 2rem; }
    .section-title { font-size: 2rem; }

    /* Bouton WhatsApp un peu plus petit sur mobile */
    .whatsapp-float {
        width: 52px;
        height: 52px;
        bottom: 1rem;
        right: 1rem;
    }
}

/* Très grands écrans : élargir le hero terminal */
@media (min-width: 1536px) {
    .hero-terminal-body { padding: 2rem; }
}


/* ===================================================================
   17. SECTION À PROPOS
   =================================================================== */
.about-card {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    transition: all 0.3s var(--easing-smooth);
}
.about-card:hover {
    border-color: var(--color-border-hi);
    transform: translateX(4px);
}
.about-card-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: rgba(0, 229, 209, 0.08);
    border: 1px solid rgba(0, 229, 209, 0.2);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.about-card-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text);
    margin-bottom: 0.4rem;
}
.about-card-desc {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.65;
}

.about-profile-card {
    padding: 2rem;
    border-radius: var(--radius-xl);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    position: sticky;
    top: 100px;
}
.about-profile-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.about-avatar {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-bg-deep);
    flex-shrink: 0;
    box-shadow: 0 4px 20px -4px var(--color-accent-glow);
}


/* ===================================================================
   18. SECTION TÉMOIGNAGES
   =================================================================== */
.testimonial-card {
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    transition: all 0.3s var(--easing-smooth);
}
.testimonial-card:hover {
    border-color: var(--color-border-hi);
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
}
.testimonial-metric-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(120deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}
.testimonial-metric-label {
    font-size: 0.75rem;
    color: var(--color-muted);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.testimonial-quote {
    font-size: 0.9375rem;
    color: var(--color-text-soft);
    line-height: 1.65;
    font-style: italic;
    flex: 1;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}
.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.7rem;
    color: var(--color-bg-deep);
    flex-shrink: 0;
}
.testimonial-name {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}
.testimonial-role {
    font-size: 0.75rem;
    color: var(--color-muted);
    margin-top: 0.1rem;
}


/* ===================================================================
   19. AMÉLIORATIONS PACKS (prix barré + note économie + acompte)
   =================================================================== */
.pack-price-old {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-muted);
    text-decoration: line-through;
    margin-bottom: 0.15rem;
}
.pack-savings-note {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--color-accent);
    background: rgba(0, 229, 209, 0.08);
    border: 1px solid rgba(0, 229, 209, 0.2);
    border-radius: 999px;
    padding: 0.3rem 0.65rem;
    display: inline-block;
    margin-top: 0.5rem;
}
.pack-deposit-note {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    color: var(--color-muted);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px dashed var(--color-border);
}


/* ===================================================================
   20. PORTFOLIO RESULTS (puces de résultats chiffrés)
   =================================================================== */
.portfolio-results {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}
.portfolio-result-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--color-accent);
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(0, 229, 209, 0.07);
    border: 1px solid rgba(0, 229, 209, 0.2);
    width: fit-content;
}
.portfolio-result-chip svg {
    flex-shrink: 0;
    width: 13px;
    height: 13px;
}


/* ===================================================================
   21. CHATBOT DE DEVIS
   =================================================================== */

/* En-tête label + badge progression */
.chatbot-form-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.6rem;
}
.chatbot-progress-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    background: rgba(0, 229, 209, 0.08);
    border: 1px solid rgba(0, 229, 209, 0.25);
    border-radius: 999px;
    padding: 0.25rem 0.65rem;
    white-space: nowrap;
    transition: background 0.3s var(--easing-smooth);
}
.chatbot-progress--done {
    color: #6ee7b7;
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
}

/* Conteneur principal */
.chatbot-wrapper {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-deep);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 260px;
    transition: border-color 0.3s var(--easing-smooth);
}
.chatbot-wrapper:focus-within {
    border-color: var(--color-border-hi);
}

/* Zone des bulles */
.chatbot-messages {
    flex: 1;
    padding: 1rem 1.1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    scroll-behavior: smooth;
    max-height: 220px;
}
.chatbot-messages::-webkit-scrollbar       { width: 4px; }
.chatbot-messages::-webkit-scrollbar-track { background: transparent; }
.chatbot-messages::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 4px; }

/* Bulles de message */
.chatbot-msg {
    max-width: 88%;
    padding: 0.6rem 0.9rem;
    border-radius: 14px;
    font-size: 0.9rem;
    line-height: 1.5;
    animation: fadeInUp 0.28s var(--easing-smooth) both;
}
.chatbot-msg--bot {
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    color: var(--color-text-soft);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}
.chatbot-msg--user {
    background: rgba(0, 229, 209, 0.12);
    border: 1px solid rgba(0, 229, 209, 0.3);
    color: var(--color-accent);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    font-weight: 500;
}
.chatbot-msg--summary {
    background: rgba(0, 229, 209, 0.05);
    border-color: rgba(0, 229, 209, 0.3);
    max-width: 100%;
    width: 100%;
}
.chatbot-msg--summary strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    font-size: 0.875rem;
}
.chatbot-msg--summary ul {
    padding-left: 1rem;
    margin-bottom: 0.5rem;
}
.chatbot-msg--summary li {
    font-size: 0.82rem;
    color: var(--color-text-soft);
    margin-bottom: 0.2rem;
    list-style: disc;
}
.chatbot-ready {
    display: inline-block;
    margin-top: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: #6ee7b7;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: 999px;
    padding: 0.25rem 0.65rem;
}

/* Zone des boutons de choix */
.chatbot-options {
    padding: 0.75rem 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-panel);
    min-height: 54px;
    align-items: center;
}
.chatbot-option-btn {
    padding: 0.5rem 1.1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-hi);
    background: var(--color-bg-deep);
    color: var(--color-text-soft);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--easing-smooth);
    line-height: 1.4;
}
.chatbot-option-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(0, 229, 209, 0.06);
    transform: translateY(-2px);
}
.chatbot-option-btn:active {
    transform: translateY(0);
}

/* Hint de verrouillage / déverrouillage du bouton */
.chatbot-gate-hint {
    color: var(--color-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    line-height: 1.5;
    transition: color 0.3s var(--easing-smooth);
}
.chatbot-gate-hint--unlocked {
    color: #6ee7b7 !important;
}

/* Bouton submit désactivé */
[data-submit-btn]:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}
[data-submit-btn]:disabled::before {
    display: none;
}

@media (max-width: 640px) {
    .chatbot-messages { max-height: 180px; }
    .chatbot-option-btn { font-size: 0.8rem; padding: 0.45rem 0.9rem; }
}


/* ===================================================================
   22. PORTFOLIO — IMAGE RÉELLE + GLASSMORPHISM
   =================================================================== */

/* Carte avec image : glassmorphism prononcé */
.portfolio-card--has-image {
    background: linear-gradient(
        145deg,
        rgba(17, 24, 39, 0.92) 0%,
        rgba(26, 36, 54, 0.96) 100%
    );
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-color: rgba(0, 229, 209, 0.15);
}
.portfolio-card--has-image:hover {
    border-color: rgba(0, 229, 209, 0.4);
    box-shadow:
        0 0 0 1px rgba(0, 229, 209, 0.12),
        0 24px 64px -20px rgba(0, 229, 209, 0.2),
        var(--shadow-soft);
}

/* Lien image (wrapper cliquable) */
.portfolio-img-link {
    display: block;
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    text-decoration: none;
}

/* Image */
.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
    transition: transform 0.55s var(--easing-smooth);
}
.portfolio-img-link:hover .portfolio-img,
.portfolio-img-link:focus .portfolio-img {
    transform: scale(1.06);
}

/* Overlay glassmorphism au survol */
.portfolio-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 229, 209, 0.04) 0%,
        rgba(10, 15, 30, 0.72) 100%
    );
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 1.5rem;
    opacity: 0;
    transition: opacity 0.35s var(--easing-smooth);
}
.portfolio-img-link:hover .portfolio-img-overlay,
.portfolio-img-link:focus .portfolio-img-overlay {
    opacity: 1;
}
.portfolio-img-overlay-inner {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 1.1rem;
    border-radius: 999px;
    background: rgba(0, 229, 209, 0.18);
    border: 1px solid rgba(0, 229, 209, 0.45);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    box-shadow: 0 4px 24px -6px rgba(0, 229, 209, 0.35);
}

/* Titre cliquable */
.portfolio-title-link {
    display: block;
    text-decoration: none;
    margin-bottom: 0;
    transition: color 0.2s var(--easing-smooth);
}
.portfolio-title-link .portfolio-title {
    transition: color 0.2s var(--easing-smooth);
}
.portfolio-title-link:hover .portfolio-title,
.portfolio-title-link:focus .portfolio-title {
    color: var(--color-accent);
}

/* Bouton "Voir le site en direct" */
.portfolio-live-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: 1rem;
    padding: 0.55rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-hi);
    background: transparent;
    color: var(--color-text-soft);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s var(--easing-smooth);
}
.portfolio-live-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(0, 229, 209, 0.05);
    transform: translateY(-2px);
}
.portfolio-live-btn:active {
    transform: translateY(0);
}


/* ===================================================================
   23. CHATBOT — BOUTON RESET + ANIMATION
   =================================================================== */

/* En-tête du chatbot (label + right side) */
.chatbot-form-header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* Bouton "Recommencer" */
.chatbot-reset-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-muted);
    font-family: inherit;
    font-size: 0.68rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--easing-smooth);
    white-space: nowrap;
    line-height: 1.6;
}
.chatbot-reset-btn:hover {
    border-color: var(--color-border-hi);
    color: var(--color-text-soft);
    background: var(--color-panel);
}
.chatbot-reset-btn:active {
    transform: scale(0.94);
}
.chatbot-reset-btn svg {
    transition: transform 0.45s var(--easing-bounce);
    flex-shrink: 0;
}
.chatbot-reset-btn:hover svg {
    transform: rotate(-200deg);
}

/* Animation fade lors de la réinitialisation */
.chatbot-resetting .chatbot-messages {
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.22s ease, transform 0.22s ease;
    pointer-events: none;
}
.chatbot-resetting .chatbot-options {
    opacity: 0;
    transition: opacity 0.15s ease;
}

/* Au retour du state normal, les nouvelles bulles s'animent */
.chatbot-messages:not(.chatbot-resetting .chatbot-messages) {
    transition: opacity 0.3s ease;
}