/* =============================================
   CARTHOGEN - Sections (Enhanced)
   ============================================= */

/* =============================================
   Vendors Section - Enhanced
   ============================================= */

.vendors {
    padding: var(--section-padding) 2rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
    overflow: hidden;
}

.vendors::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.vendors-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.vendors-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 2.5rem;
    display: inline-flex;
    align-items: center;
    gap: 1rem;
}

.vendors-title::before,
.vendors-title::after {
    content: '';
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color-light));
}

.vendors-title::after {
    background: linear-gradient(90deg, var(--border-color-light), transparent);
}

.vendors-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.vendor-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid transparent;
}

.vendor-logo:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--border-color);
    transform: translateY(-3px);
}

.vendor-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: var(--transition-normal);
}

.vendor-logo:hover .vendor-icon {
    opacity: 1;
}

/* =============================================
   Problem Section - Enhanced
   ============================================= */

.problem {
    padding: var(--section-padding) 2rem;
    position: relative;
    overflow: hidden;
}

.problem::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(239, 68, 68, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(245, 158, 11, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 1;
}

/* =============================================
   Features Section - Enhanced
   ============================================= */

.features {
    padding: var(--section-padding) 2rem;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(10, 10, 15, 0.95) 100%);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

.features::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -25%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 60%);
    pointer-events: none;
    animation: featureGlow 15s ease-in-out infinite alternate;
}

@keyframes featureGlow {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100px, 100px); }
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 1;
}

/* Light mode - Features section background fix */
[data-theme="light"] .features {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

[data-theme="light"] .features::before {
    background: var(--gradient-mesh);
    opacity: 0.5;
}

[data-theme="light"] .features::after {
    background: radial-gradient(circle, rgba(8, 145, 178, 0.04) 0%, transparent 60%);
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .features {
        background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    }

    :root:not([data-theme="dark"]) .features::before {
        background: var(--gradient-mesh);
        opacity: 0.5;
    }

    :root:not([data-theme="dark"]) .features::after {
        background: radial-gradient(circle, rgba(8, 145, 178, 0.04) 0%, transparent 60%);
    }
}

/* =============================================
   How It Works Section - Enhanced
   ============================================= */

.how-it-works {
    padding: var(--section-padding) 2rem;
    position: relative;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 400px;
    transform: translateY(-50%);
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    position: relative;
    z-index: 1;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(90deg,
        rgba(0, 212, 255, 0.1),
        rgba(0, 212, 255, 0.4) 30%,
        rgba(20, 184, 166, 0.4) 50%,
        rgba(16, 185, 129, 0.4) 70%,
        rgba(16, 185, 129, 0.1)
    );
    border-radius: 1px;
}

.step {
    text-align: center;
    position: relative;
    padding: 0 1rem;
}

.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
    border: 2px solid var(--border-color-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    position: relative;
    z-index: 1;
    transition: all var(--transition-slow);
    box-shadow: var(--shadow-md);
}

.step-number::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: var(--gradient-cyan);
    opacity: 0;
    z-index: -1;
    filter: blur(15px);
    transition: var(--transition-normal);
}

.step:hover .step-number {
    border-color: var(--accent-cyan);
    transform: scale(1.15);
    box-shadow: var(--shadow-glow-cyan);
}

.step:hover .step-number::before {
    opacity: 0.5;
}

.step:nth-child(1) .step-number { color: var(--accent-cyan); }
.step:nth-child(2) .step-number { color: var(--accent-teal); }
.step:nth-child(3) .step-number { color: var(--accent-green); }

.step h3 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.875rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

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

/* =============================================
   AI Section - Enhanced
   ============================================= */

.ai-section {
    padding: var(--section-padding) 2rem;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 50%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.ai-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 25% 50%, rgba(20, 184, 166, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 75% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
    animation: aiGlow 12s ease-in-out infinite alternate;
}

@keyframes aiGlow {
    0% { opacity: 1; }
    100% { opacity: 0.6; }
}

.ai-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-teal-dim, rgba(20, 184, 166, 0.3)), transparent);
}

.ai-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.ai-content {
    max-width: 550px;
}

.ai-content h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.ai-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.ai-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ai-feature {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.25rem;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.08) 0%, rgba(20, 184, 166, 0.02) 100%);
    border: 1px solid rgba(20, 184, 166, 0.15);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.ai-feature:hover {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.12) 0%, rgba(20, 184, 166, 0.04) 100%);
    border-color: rgba(20, 184, 166, 0.35);
    transform: translateX(8px);
    box-shadow: 0 10px 30px rgba(20, 184, 166, 0.1);
}

.ai-feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.2) 0%, rgba(20, 184, 166, 0.1) 100%);
    border: 1px solid rgba(20, 184, 166, 0.25);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-teal);
    flex-shrink: 0;
    transition: var(--transition-normal);
}

.ai-feature:hover .ai-feature-icon {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(20, 184, 166, 0.3);
}

.ai-feature h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
    color: var(--text-primary);
}

.ai-feature p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

.ai-visual {
    position: relative;
    height: 450px;
}

/* =============================================
   Roadmap Section - Enhanced
   ============================================= */

.roadmap {
    padding: var(--section-padding) 2rem;
    position: relative;
}

.roadmap::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 30%, rgba(0, 212, 255, 0.04) 0%, transparent 40%),
        radial-gradient(ellipse at 70% 70%, rgba(139, 92, 246, 0.04) 0%, transparent 40%);
    pointer-events: none;
}

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 1;
}

/* =============================================
   CTA Section - Enhanced
   ============================================= */

.cta-section {
    padding: var(--section-padding) 2rem;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, rgba(0, 212, 255, 0.04) 30%, transparent 60%);
    pointer-events: none;
    animation: ctaPulse 8s ease-in-out infinite;
}

@keyframes ctaPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.7; }
}

.cta-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color-light), transparent);
}

.cta-content {
    max-width: 750px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 700;
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    line-height: 1.2;
    background: linear-gradient(180deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}

.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.form-group {
    margin-bottom: 1rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-tertiary);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

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

.contact-form button {
    width: 100%;
    justify-content: center;
}

@media (max-width: 600px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .form-row .form-group {
        margin-bottom: 1rem;
    }
}

/* =============================================
   Footer - Enhanced
   ============================================= */

footer {
    padding: 5rem 2rem 2rem;
    border-top: 1px solid var(--border-color);
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 255, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand .logo {
    margin-bottom: 1.25rem;
}

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

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a::before {
    content: '';
    width: 0;
    height: 1px;
    background: var(--accent-cyan);
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: var(--accent-cyan);
    transform: translateX(5px);
}

.footer-links a:hover::before {
    width: 12px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan-dim);
    background: rgba(0, 212, 255, 0.08);
    transform: translateY(-3px);
}