/* ===== VARIABLES ===== */
:root {
    /* Base colors */
    --bg-primary: #0d0d0d;
    --bg-secondary: #161616;
    --bg-tertiary: #1f1f1f;
    --bg-card: #1a1a1a;

    /* Text colors */
    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --text-muted: #6b6b6b;

    /* Accent colors */
    --accent: #00d4aa;
    --accent-hover: #00b894;
    --accent-glow: rgba(0, 212, 170, 0.15);

    /* Borders */
    --border-color: #2a2a2a;
    --border-hover: #3a3a3a;

    color-scheme: dark;
}

/* ===== BASE ===== */
html, body {
    font-family: 'Inter', 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    min-height: 100vh;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

body {
    overflow-x: hidden;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
}

.text-muted {
    color: var(--text-secondary) !important;
}

.text-accent {
    color: var(--accent) !important;
}

/* ===== NAVIGATION ===== */
.top-nav {
    background-color: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav-btn {
    min-width: 7rem;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    text-transform: uppercase;
}

.nav-btn:hover {
    transform: translateY(-1px);
}

.nav-btn.active,
.btn-accent {
    background-color: var(--accent) !important;
    border-color: var(--accent) !important;
    color: #000 !important;
    font-weight: 600;
}

.btn-accent:hover {
    background-color: var(--accent-hover) !important;
    border-color: var(--accent-hover) !important;
    color: #000 !important;
}

.btn-outline-light {
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-outline-light:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* ===== HERO SECTION ===== */
.hero-section {
    background: var(--bg-primary);
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, var(--accent-glow) 0%, transparent 50%);
    animation: pulse-glow 8s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

/* ===== CARDS ===== */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

/* Service cards - enhanced hover effect */
.card-service {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card-service:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px var(--accent-glow);
    border-color: var(--accent);
}

.card-service:hover .feature-icon-sm {
    transform: scale(1.15);
    filter: drop-shadow(0 0 10px var(--accent));
}

.card-service .feature-icon-sm {
    transition: all 0.3s ease;
}

.card-service h5 {
    flex-shrink: 0;
}

.card-service p {
    flex-grow: 1;
    display: flex;
    align-items: flex-start;
}

/* ===== SECTIONS ===== */
.section {
    padding: 5rem 0;
    position: relative;
}

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

/* ===== ICONS ===== */
.feature-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.feature-icon-sm {
    font-size: 2rem;
    color: var(--accent);
}

/* ===== TECH TAGS ===== */
.tech-group {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    transition: all 0.3s ease;
}

.tech-group:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
}

.tech-group-header {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.8rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.tech-tag:hover {
    border-color: var(--tag-color, var(--accent));
    background-color: rgba(0, 0, 0, 0.3);
    transform: translateY(-1px);
}

.tech-tag i {
    color: var(--tag-color, var(--accent));
}

/* ===== OPTION A: Tech Icon Grid ===== */
.tech-icon-item {
    transition: transform 0.2s ease;
}

.tech-icon-item:hover {
    transform: translateY(-3px);
}

/* ===== OPTION B: Tech Carousel ===== */
.tech-carousel-wrapper {
    overflow: hidden;
    position: relative;
    padding: 1rem 0;
}

.tech-carousel-wrapper::before,
.tech-carousel-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100px;
    z-index: 2;
    pointer-events: none;
}

.tech-carousel-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-primary), transparent);
}

.tech-carousel-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-primary), transparent);
}

.tech-carousel {
    display: flex;
    gap: 3rem;
    animation: scroll-left 30s linear infinite;
    width: max-content;
}

.tech-carousel:hover {
    animation-play-state: paused;
}

.tech-carousel-item {
    display: flex;
    align-items: center;
    white-space: nowrap;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* ===== OPTION C: Floating Icons ===== */
.tech-floating-icon {
    transition: all 0.3s ease;
    padding: 1rem;
}

.tech-floating-icon:hover {
    transform: scale(1.15);
    filter: drop-shadow(0 0 10px currentColor);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

/* ===== BADGES ===== */
.badge.bg-secondary {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== FORMS ===== */
.form-control,
.form-select {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-tertiary);
    border-color: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem var(--accent-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Chrome autofill */
input:-webkit-autofill,
input:-webkit-autofill:focus,
input:-webkit-autofill:hover,
input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 1000px var(--bg-tertiary) inset !important;
    box-shadow: 0 0 0 1000px var(--bg-tertiary) inset !important;
    background-color: var(--bg-tertiary) !important;
    -webkit-text-fill-color: var(--text-primary) !important;
    caret-color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Stagger animation delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ===== PAGE TRANSITIONS ===== */
.page-container {
    animation: slideIn 0.4s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== STATS ===== */
.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

/* ===== PARTNER LOGOS ===== */
.partner-card {
    transition: all 0.3s ease;
}

.partner-card:hover {
    border-color: var(--accent);
}

/* ===== LOADING SPINNER ===== */
.sk-cube-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--bg-primary);
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    z-index: 9999;
}

.sk-cube-grid {
    width: 80px;
    height: 80px;
}

.sk-cube-grid .sk-cube {
    width: 33%;
    height: 33%;
    background-color: var(--accent);
    float: left;
    animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
}

.sk-cube-grid .sk-cube1 { animation-delay: 0.2s; }
.sk-cube-grid .sk-cube2 { animation-delay: 0.3s; }
.sk-cube-grid .sk-cube3 { animation-delay: 0.4s; }
.sk-cube-grid .sk-cube4 { animation-delay: 0.1s; }
.sk-cube-grid .sk-cube5 { animation-delay: 0.2s; }
.sk-cube-grid .sk-cube6 { animation-delay: 0.3s; }
.sk-cube-grid .sk-cube7 { animation-delay: 0s; }
.sk-cube-grid .sk-cube8 { animation-delay: 0.1s; }
.sk-cube-grid .sk-cube9 { animation-delay: 0.2s; }

@keyframes sk-cubeGridScaleDelay {
    0%, 70%, 100% {
        transform: scale3D(1, 1, 1);
    }
    35% {
        transform: scale3D(0, 0, 1);
    }
}

/* ===== TECH TOOLTIPS ===== */
.tech-tooltip-container {
    position: relative;
    cursor: pointer;
}

.tech-tooltip {
    position: absolute;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--bg-card);
    border: 1px solid var(--accent);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    min-width: 250px;
    max-width: 300px;
    z-index: 1000;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4), 0 0 20px var(--accent-glow);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.tech-tooltip.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

/* Position au-dessus par défaut */
.tech-tooltip.position-top {
    bottom: calc(100% + 15px);
    top: auto;
}

.tech-tooltip.position-top::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--accent);
}

.tech-tooltip.position-top::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 7px solid transparent;
    border-top-color: var(--bg-card);
    z-index: 1;
    margin-top: -1px;
}

/* Position en-dessous */
.tech-tooltip.position-bottom {
    top: calc(100% + 15px);
    bottom: auto;
}

.tech-tooltip.position-bottom::after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-bottom-color: var(--accent);
}

.tech-tooltip.position-bottom::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 7px solid transparent;
    border-bottom-color: var(--bg-card);
    z-index: 1;
    margin-bottom: -1px;
}

.tech-tooltip-title {
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.tech-tooltip-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
    margin: 0;
}

/* Animation de l'icône au clic */
.tech-tooltip-container.active .tech-floating-icon {
    transform: scale(1.15);
    filter: drop-shadow(0 0 15px var(--accent));
}

/* Overlay pour fermer au clic ailleurs */
.tech-tooltip-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: transparent;
}