/* assets/css/main.css */

:root {
    /* Premium Color Palette */
    --color-primary: #0F172A;
    /* Slate 900 */
    --color-primary-light: #1E293B;
    /* Slate 800 */
    --color-primary-dark: #020617;
    /* Slate 950 */

    --color-secondary: #94A3B8;
    /* Slate 400 */
    --color-secondary-light: #CBD5E1;
    /* Slate 300 */

    --color-accent: #38BDF8;
    /* Sky 400 */
    --color-accent-glow: rgba(56, 189, 248, 0.5);
    --color-accent-dim: #0EA5E9;
    /* Sky 500 */

    --color-bg-body: #F8FAFC;
    --color-bg-light: #F1F5F9;
    --color-bg-white: #FFFFFF;
    --color-bg-glass: rgba(255, 255, 255, 0.7);
    --color-bg-dark-glass: rgba(15, 23, 42, 0.8);

    --color-text-main: #0F172A;
    --color-text-muted: #64748B;
    --color-text-light: #F1F5F9;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    --gradient-accent: linear-gradient(135deg, #38BDF8 0%, #2563EB 100%);
    --gradient-glow: radial-gradient(circle at center, rgba(56, 189, 248, 0.15) 0%, transparent 70%);

    /* Typography */
    --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Roboto', system-ui, -apple-system, sans-serif;

    /* Spacing */
    --container-width: 1280px;
    --header-height: 80px;

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px var(--color-accent-glow);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-main);
    background-color: var(--color-bg-body);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

.section-sm {
    padding: 4rem 0;
}

.section-lg {
    padding: 8rem 0;
}

.relative {
    position: relative;
}

.z-10 {
    z-index: 10;
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-white {
    color: white;
}

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

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

.bg-dark {
    background-color: var(--color-primary);
}

.bg-light {
    background-color: var(--color-bg-light);
}

.bg-white {
    background-color: var(--color-bg-white);
}

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

/* Hero Inner Pages */
.hero-section-inner {
    height: 50vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary-dark);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.overlay-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 0%, var(--color-primary-dark) 90%);
}

.badge-pill {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(4px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    font-family: var(--font-heading);
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--shadow-md);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg), 0 0 15px var(--color-accent-glow);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
    background: transparent;
}

.btn-outline-light:hover {
    border-color: white;
    background: rgba(255, 255, 255, 0.05);
}

.arrow-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent-dim);
    font-weight: 600;
    font-family: var(--font-heading);
}

.arrow-link:hover {
    gap: 0.75rem;
    color: var(--color-accent);
}

/* UI Cards */
.card {
    background: white;
    border: 1px solid #E2E8F0;
    border-radius: var(--radius-md);
    padding: 2rem;
    transition: all var(--transition-medium);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent-dim);
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* --- New Components for Redevelopment --- */

/* Hero Grid Background */
.hero-grid-bg {
    background-size: 50px 50px;
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    position: absolute;
    inset: 0;
    z-index: 1;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, minmax(250px, auto));
    gap: 1.5rem;
}

.bento-item {
    background: white;
    border: 1px solid var(--color-bg-light);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-sm);
}

.bento-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent-dim);
}

.bento-span-2 {
    grid-column: span 2;
}

.bento-dark {
    background: var(--color-primary);
    color: white;
}

.bento-icon {
    width: 48px;
    height: 48px;
    background: var(--color-bg-body);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--color-accent-dim);
}

.bento-dark .bento-icon {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-accent);
}

/* Process Steps */
.process-wrapper {
    position: relative;
    padding: 2rem 0;
}

.process-line {
    position: absolute;
    top: 24px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-secondary-light);
    z-index: 0;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.process-step {
    text-align: center;
}

.step-marker {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-weight: bold;
    font-family: var(--font-heading);
    border: 4px solid white;
    box-shadow: var(--shadow-md);
}

.process-step:hover .step-marker {
    background: var(--color-accent);
}

/* Testimonials */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid #f1f5f9;
    box-shadow: var(--shadow-sm);
}

.client-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.client-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #e2e8f0;
    object-fit: cover;
}

/* FAQ Accordion */
.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.faq-item {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--color-primary);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--color-text-muted);
    display: none;
    /* JS will toggle this */
    border-top: 1px solid #f1f5f9;
    margin-top: -0.5rem;
    padding-top: 1rem;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Industry Cards */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.industry-card {
    position: relative;
    height: 200px;
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    color: white;
    background-size: cover;
    background-position: center;
    background-color: var(--color-primary);
}

.industry-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
}

.industry-card h4 {
    position: relative;
    z-index: 2;
    color: white;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    font-weight: 700;
}

/* Responsive Updates */
@media (max-width: 900px) {
    .bento-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .bento-span-2 {
        grid-column: span 1;
    }

    .process-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .process-line {
        height: 100%;
        width: 2px;
        left: 24px;
        top: 0;
    }

    .process-step {
        text-align: left;
        padding-left: 4rem;
        position: relative;
        margin-bottom: 2rem;
    }

    .step-marker {
        position: absolute;
        left: 0;
        margin: 0;
    }

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

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

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

/* --- Expanded Homepage Sections --- */

/* Comparison Section */
.comparison-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.compare-side {
    padding: 4rem;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.side-chaos {
    background: #f1f5f9;
    color: var(--color-text-muted);
    border-right: 1px solid #e2e8f0;
}

.side-clarity {
    background: var(--color-primary);
    color: white;
}

/* Animated Graph Section */
.graph-display-section {
    position: relative;
    padding: 6rem 0;
    background: linear-gradient(to bottom, #0f172a, #1e293b);
    overflow: hidden;
}

#neuralBg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.4;
    overflow: hidden;
    color: white;
}

.graph-container {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    margin-top: 2rem;
    height: 400px;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.graph-canvas-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.graph-tooltip {
    position: absolute;
    background: white;
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    box-shadow: var(--shadow-md);
    transform: translate(-50%, -150%);
    z-index: 10;
}

.graph-label {
    position: absolute;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Tech Stack Marquee/Grid */
.tech-stack-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 3rem;
}

.tech-item {
    padding: 1rem 2rem;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-weight: 600;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.tech-item:hover {
    border-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Insights/Blog Preview */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.insight-card {
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.insight-image {
    height: 200px;
    background-color: #cbd5e1;
    position: relative;
    background-size: cover;
    background-position: center;
}

.insight-content {
    padding: 1.5rem;
}

.insight-tag {
    font-size: 0.75rem;
    color: var(--color-accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    display: block;
}

.insight-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.insight-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.insight-link:hover {
    color: var(--color-accent);
}

/* Responsive */
@media (max-width: 900px) {
    .comparison-container {
        grid-template-columns: 1fr;
    }

    .side-chaos {
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
    }

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

/* --- Services Page Specifics --- */

.service-card-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.service-card-row.reverse .service-info {
    order: 2;
}

.service-card-row.reverse .service-visual {
    order: 1;
}

.service-visual {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
}

.service-visual:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent-dim);
}

.service-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at center, rgba(255, 255, 255, 0.8) 0%, transparent 70%);
    opacity: 0.5;
}

.service-icon-large {
    font-size: 3rem;
    color: var(--color-accent);
    padding: 2rem;
    background: white;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 2;
}

.feature-list {
    margin: 2rem 0;
}

.feature-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-main);
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-accent);
    font-weight: 800;
}

@media (max-width: 900px) {
    .service-card-row {
        grid-template-columns: 1fr;
        gap: 3rem;
        margin-bottom: 4rem;
    }

    .service-card-row.reverse .service-info {
        order: 1;
    }

    .service-card-row.reverse .service-visual {
        order: 2;
    }
}