/* =============================================
   CARTHOGEN - Composants réutilisables (Enhanced)
   ============================================= */

/* =============================================
   Boutons - Enhanced
   ============================================= */

.btn {
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition-normal);
}

.btn:hover::before {
    opacity: 1;
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    border: 1px solid var(--border-color-light);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--accent-cyan-dim);
    background: rgba(0, 212, 255, 0.08);
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--gradient-cyan);
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow-cyan);
    font-weight: 700;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-cyan-strong);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1.05rem;
    border-radius: var(--radius-lg);
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-normal);
}

.btn:hover svg {
    transform: translateX(3px);
}

/* =============================================
   Cards - Enhanced with Glass Morphism
   ============================================= */

/* Base Card Styles */
.card-base {
    background: linear-gradient(135deg, rgba(18, 18, 26, 0.8) 0%, rgba(18, 18, 26, 0.4) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

/* Problem Card - Enhanced */
.problem-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(18, 18, 26, 0.6) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-orange));
    opacity: 0;
    transition: var(--transition-normal);
}

.problem-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.08) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition-slow);
    pointer-events: none;
}

.problem-card:hover {
    transform: translateY(-8px);
    border-color: rgba(239, 68, 68, 0.3);
    box-shadow: 0 20px 40px rgba(239, 68, 68, 0.1);
}

.problem-card:hover::before {
    opacity: 1;
}

.problem-card:hover::after {
    opacity: 1;
}

.problem-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(239, 68, 68, 0.05) 100%);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--accent-red);
    transition: var(--transition-normal);
}

.problem-card:hover .problem-icon {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.3);
}

.problem-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.875rem;
    color: var(--text-primary);
}

.problem-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Light mode - Problem cards with better contrast */
[data-theme="light"] .problem-card {
    background: var(--bg-card);
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .problem-card:hover {
    box-shadow: 0 20px 40px rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.25);
}

[data-theme="light"] .problem-icon {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1) 0%, rgba(220, 38, 38, 0.05) 100%);
    border-color: rgba(220, 38, 38, 0.2);
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .problem-card {
        background: var(--bg-card);
        border-color: rgba(0, 0, 0, 0.08);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    }

    :root:not([data-theme="dark"]) .problem-card:hover {
        box-shadow: 0 20px 40px rgba(239, 68, 68, 0.12);
        border-color: rgba(239, 68, 68, 0.25);
    }

    :root:not([data-theme="dark"]) .problem-icon {
        background: linear-gradient(135deg, rgba(220, 38, 38, 0.1) 0%, rgba(220, 38, 38, 0.05) 100%);
        border-color: rgba(220, 38, 38, 0.2);
    }
}

/* Feature Card - Enhanced */
.feature-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(18, 18, 26, 0.6) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-cyan);
    opacity: 0;
    transition: var(--transition-normal);
}

.feature-card::after {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 40%);
    opacity: 0;
    transition: var(--transition-slow);
    pointer-events: none;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-cyan-dim);
    box-shadow: 0 25px 50px rgba(0, 212, 255, 0.12);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover::after {
    opacity: 1;
    top: -50%;
    left: -50%;
}

.feature-card.large {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    align-items: center;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15) 0%, rgba(0, 212, 255, 0.05) 100%);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--accent-cyan);
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: var(--shadow-glow-cyan);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.75;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.75rem;
}

.feature-tag {
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--accent-cyan);
    font-family: 'JetBrains Mono', monospace;
    transition: var(--transition-normal);
}

.feature-tag:hover {
    background: rgba(0, 212, 255, 0.15);
    transform: translateY(-2px);
}

/* Light mode - Feature cards with better contrast */
[data-theme="light"] .feature-card {
    background: var(--bg-card);
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .feature-card:hover {
    box-shadow: 0 20px 40px rgba(8, 145, 178, 0.12);
    border-color: rgba(8, 145, 178, 0.25);
}

[data-theme="light"] .feature-icon {
    background: linear-gradient(135deg, rgba(8, 145, 178, 0.12) 0%, rgba(8, 145, 178, 0.05) 100%);
    border-color: rgba(8, 145, 178, 0.2);
}

[data-theme="light"] .feature-tag {
    background: rgba(8, 145, 178, 0.08);
    border-color: rgba(8, 145, 178, 0.15);
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .feature-card {
        background: var(--bg-card);
        border-color: rgba(0, 0, 0, 0.08);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    }

    :root:not([data-theme="dark"]) .feature-card:hover {
        box-shadow: 0 20px 40px rgba(8, 145, 178, 0.12);
        border-color: rgba(8, 145, 178, 0.25);
    }

    :root:not([data-theme="dark"]) .feature-icon {
        background: linear-gradient(135deg, rgba(8, 145, 178, 0.12) 0%, rgba(8, 145, 178, 0.05) 100%);
        border-color: rgba(8, 145, 178, 0.2);
    }

    :root:not([data-theme="dark"]) .feature-tag {
        background: rgba(8, 145, 178, 0.08);
        border-color: rgba(8, 145, 178, 0.15);
    }
}

/* Roadmap Card - Enhanced */
.roadmap-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(18, 18, 26, 0.6) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.25rem;
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.roadmap-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    opacity: 0;
    transition: var(--transition-normal);
}

.roadmap-card:nth-child(1)::before { background: var(--gradient-cyan); }
.roadmap-card:nth-child(2)::before { background: linear-gradient(180deg, var(--accent-teal), var(--accent-green)); }
.roadmap-card:nth-child(3)::before { background: var(--gradient-purple); }

.roadmap-card:hover {
    transform: translateY(-8px) translateX(4px);
    border-color: var(--border-color-light);
    box-shadow: var(--shadow-lg);
}

.roadmap-card:hover::before {
    opacity: 1;
}

.roadmap-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: var(--transition-normal);
}

.roadmap-card:nth-child(1) .roadmap-icon {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15) 0%, rgba(0, 212, 255, 0.05) 100%);
    border: 1px solid rgba(0, 212, 255, 0.2);
    color: var(--accent-cyan);
}

.roadmap-card:nth-child(2) .roadmap-icon {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.15) 0%, rgba(20, 184, 166, 0.05) 100%);
    border: 1px solid rgba(20, 184, 166, 0.2);
    color: var(--accent-teal);
}

.roadmap-card:nth-child(3) .roadmap-icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(139, 92, 246, 0.05) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    color: var(--accent-purple);
}

.roadmap-card:hover .roadmap-icon {
    transform: scale(1.15);
}

.roadmap-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.875rem;
    color: var(--text-primary);
}

.roadmap-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Light mode - Roadmap and base cards with better contrast */
[data-theme="light"] .card-base,
[data-theme="light"] .roadmap-card {
    background: var(--bg-card);
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .roadmap-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .card-base,
    :root:not([data-theme="dark"]) .roadmap-card {
        background: var(--bg-card);
        border-color: rgba(0, 0, 0, 0.08);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    }

    :root:not([data-theme="dark"]) .roadmap-card:hover {
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    }
}

/* =============================================
   Badges - Enhanced
   ============================================= */

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.12) 0%, rgba(0, 212, 255, 0.04) 100%);
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 1.75rem;
    backdrop-filter: blur(10px);
    animation: badgeGlow 3s ease-in-out infinite;
}

@keyframes badgeGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.1); }
    50% { box-shadow: 0 0 30px rgba(0, 212, 255, 0.2); }
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 10px var(--accent-cyan);
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.15) 0%, rgba(20, 184, 166, 0.05) 100%);
    border: 1px solid rgba(20, 184, 166, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--accent-teal);
    margin-bottom: 1.75rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

/* =============================================
   Gradient Text - Enhanced
   ============================================= */

.highlight {
    background: linear-gradient(135deg, var(--accent-cyan-bright) 0%, var(--accent-cyan) 50%, var(--accent-teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

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

/* =============================================
   Dividers & Decorations
   ============================================= */

.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color-light), transparent);
    margin: 4rem 0;
}

.glow-line {
    height: 2px;
    background: var(--gradient-cyan);
    border-radius: 1px;
    box-shadow: var(--shadow-glow-cyan);
}