/* ==========================================================================
   Colinear Labs — Main Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   Custom Properties
   -------------------------------------------------------------------------- */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f7;
    --bg-card: #ffffff;
    --bg-card-hover: #f0f0f3;
    --text-primary: #1a1a2e;
    --text-secondary: #52526b;
    --text-muted: #8e8ea0;
    --accent-cyan: #0891b2;
    --accent-blue: #2563eb;
    --accent-purple: #7c3aed;
    --gradient-primary: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 50%, var(--accent-purple) 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(8, 145, 178, 0.06) 0%, rgba(37, 99, 235, 0.06) 50%, rgba(124, 58, 237, 0.06) 100%);
    --border-color: rgba(0, 0, 0, 0.08);
    --font-display: 'Instrument Serif', Georgia, serif;
    --font-body: 'Onest', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --------------------------------------------------------------------------
   Background Effects
   -------------------------------------------------------------------------- */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 20%, rgba(8, 145, 178, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(124, 58, 237, 0.04) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-cta {
    background: var(--gradient-primary);
    color: #ffffff !important;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600 !important;
    transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.25);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 101;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 80px;
    align-items: center;
}

.hero-text h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero-text h1 .gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text .subheadline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 540px;
    line-height: 1.7;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--gradient-primary);
    color: #ffffff;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.3);
}

.hero-cta svg {
    transition: transform 0.3s ease;
}

.hero-cta:hover svg {
    transform: translateX(4px);
}

.hero-image {
    position: relative;
}

.hero-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: 24px;
    overflow: hidden;
    background: var(--gradient-subtle);
    border: 1px solid var(--border-color);
}

.hero-image-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0.1;
    z-index: 1;
}

.hero-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.hero-image-placeholder svg {
    width: 64px;
    height: 64px;
    opacity: 0.5;
}

.hero-badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px 24px;
    backdrop-filter: blur(10px);
}

.hero-badge-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.hero-badge-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Services Section
   -------------------------------------------------------------------------- */
.services {
    padding: 120px 0;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-cyan);
    margin-bottom: 16px;
}

.section-label::before {
    content: '';
    width: 24px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 32px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-8px);
    border-color: rgba(37, 99, 235, 0.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--gradient-subtle);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.service-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--accent-cyan);
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* --------------------------------------------------------------------------
   Calendly Section
   -------------------------------------------------------------------------- */
.calendly-section {
    padding: 120px 0;
    background: var(--bg-secondary);
    position: relative;
}

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

.calendly-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.calendly-text h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 20px;
}

.calendly-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 32px;
}

.calendly-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.calendly-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.calendly-feature svg {
    width: 20px;
    height: 20px;
    stroke: var(--accent-cyan);
    flex-shrink: 0;
}

.calendly-embed {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    min-height: 500px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.calendly-embed-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.calendly-embed-placeholder svg {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.calendly-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
    background: var(--gradient-primary);
    color: #ffffff;
    padding: 14px 28px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.calendly-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.25);
}

/* --------------------------------------------------------------------------
   Testimonials Section
   -------------------------------------------------------------------------- */
.testimonials {
    padding: 120px 0;
}

.testimonials-header {
    text-align: center;
    margin-bottom: 60px;
}

.testimonials-header .section-subtitle {
    margin-left: auto;
    margin-right: auto;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    border-color: rgba(37, 99, 235, 0.2);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.testimonial-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: auto;
}

.testimonial-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.testimonial-role {
    font-size: 0.85rem;
    color: var(--text-muted);
}


/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
footer {
    padding: 60px 0 40px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
    display: block;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 300px;
}

.footer-links {
    display: flex;
    gap: 48px;
}

.footer-column h4 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-column a:hover {
    color: var(--text-primary);
}

.footer-column a svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

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

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--gradient-primary);
    color: #ffffff;
    border-color: transparent;
}

.footer-social a svg {
    width: 20px;
    height: 20px;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* --------------------------------------------------------------------------
   Responsive — Tablet
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero-image {
        order: -1;
        max-width: 350px;
        margin: 0 auto;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .calendly-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   Responsive — Mobile
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    nav .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
    }

    nav .nav-links.active {
        display: flex;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        flex-direction: column;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}