/* ========================================
   SEGO SOLUTIONS - Main Stylesheet
   ======================================== */

/* Custom Font */
@font-face {
    font-family: 'Figtree';
    src: url('assets/fonts/Figtree-VariableFont_wght.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

/* ========================================
   CSS Variables
   ======================================== */
:root {
    /* Colors */
    --color-primary: #3a8bad;
    --color-primary-dark: #2b6a88;
    --color-primary-light: #5ca8c8;
    --color-primary-subtle: rgba(58, 139, 173, 0.1);
    --color-dark: #302f2e;
    --color-dark-muted: #5a5856;
    --color-text: #4a4a4a;
    --color-text-light: #6b6b6b;
    --color-background: #f8f9fa;
    --color-background-alt: #eef2f5;
    --color-white: #ffffff;

    /* Typography - Larger sizes */
    --font-family: 'Figtree', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 1.125rem;
    --font-size-sm: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3rem;
    --font-size-5xl: 4rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--color-primary-dark);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-dark);
    font-weight: 600;
    line-height: 1.3;
}

/* ========================================
   Utility Classes
   ======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(248, 249, 250, 0.9);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.nav.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    opacity: 0;
    animation: navFadeIn 0.6s ease forwards 0.8s;
}

.nav-logo-icon {
    width: 36px;
    height: 36px;
}

.nav-logo-text {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-dark-muted);
    transition: color var(--transition-fast);
    opacity: 0;
    animation: navFadeIn 0.6s ease forwards;
}

.nav-menu li:nth-child(1) .nav-link { animation-delay: 1s; }
.nav-menu li:nth-child(2) .nav-link { animation-delay: 1.15s; }
.nav-menu li:nth-child(3) .nav-link { animation-delay: 1.3s; }
.nav-menu li:nth-child(4) .nav-link { animation-delay: 1.45s; }
.nav-menu li:nth-child(5) .nav-link { animation-delay: 1.6s; }

@keyframes navFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-cta {
    padding: 0.5rem 1.25rem;
    background-color: var(--color-primary);
    color: var(--color-white) !important;
    border-radius: var(--radius-md);
}

.nav-cta:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-dark);
    transition: all var(--transition-fast);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.cube-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    perspective: 1000px;
}

/* Isometric pillar - slides in from left */
.isometric-pillar {
    position: absolute;
    top: -150px;
    left: -100px;
    width: 500px;
    height: 900px;
    pointer-events: none;
    transform: translateX(-100%);
    animation: pillarSlideIn 1.5s cubic-bezier(0.22, 1, 0.36, 1) forwards,
               pillarFloat 30s ease-in-out infinite 1.5s;
}

@keyframes pillarSlideIn {
    0% {
        transform: translateX(-100%);
        opacity: 0;
    }
    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pillarFloat {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(15px, -15px);
    }
}

/* Floating cube decorations */
.floating-cube {
    position: absolute;
    opacity: 0;
    animation: cubesFadeIn 1.5s ease forwards, float 20s ease-in-out infinite;
}

@keyframes cubesFadeIn {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    100% {
        opacity: 0.06;
        transform: scale(1);
    }
}

.floating-cube svg {
    width: 100%;
    height: 100%;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(2deg);
    }
    50% {
        transform: translateY(-10px) rotate(-1deg);
    }
    75% {
        transform: translateY(-25px) rotate(1deg);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-md);
}

.hero-tagline {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo-icon {
    width: 550px;
    height: 550px;
    opacity: 0.3;
    animation: pulse-subtle 4s ease-in-out infinite;
}

@keyframes pulse-subtle {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.4;
    }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(45deg);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: rotate(45deg) translate(0, 0);
    }
    50% {
        transform: rotate(45deg) translate(5px, 5px);
    }
}

/* ========================================
   Animations
   ======================================== */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.animate-fade-left {
    opacity: 0;
    transform: translateX(30px);
    animation: fadeLeft 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.8s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll-triggered animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Problem Section
   ======================================== */
.problem {
    background-color: var(--color-white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.problem-card {
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

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

.problem-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-primary);
}

.problem-icon svg {
    width: 100%;
    height: 100%;
}

.problem-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.problem-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ========================================
   Services Section
   ======================================== */
.services {
    background-color: var(--color-background);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    border: 1px solid transparent;
}

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

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ========================================
   Approach Section
   ======================================== */
.approach {
    background-color: var(--color-white);
}

.approach-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.approach-visual {
    display: flex;
    justify-content: center;
}

.approach-diagram {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 500px;
    height: 380px;
}

.diagram-circle {
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.diagram-circle.human {
    left: 0;
    background: linear-gradient(135deg, rgba(58, 139, 173, 0.15), rgba(58, 139, 173, 0.05));
    color: var(--color-primary-dark);
    animation: breathe 4s ease-in-out infinite;
}

.diagram-circle.ai {
    right: 0;
    background: linear-gradient(135deg, rgba(48, 47, 46, 0.1), rgba(48, 47, 46, 0.03));
    color: var(--color-dark);
    animation: breathe 4s ease-in-out infinite 2s;
}

@keyframes breathe {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.diagram-intersection {
    position: absolute;
    z-index: 1;
    width: 80px;
    height: 80px;
    background-color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.diagram-logo {
    width: 50px;
    height: 50px;
}

.approach-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.approach-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.approach-item:hover {
    background-color: var(--color-background);
}

.approach-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary-subtle);
    line-height: 1;
    min-width: 60px;
}

.approach-text h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.approach-text p {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

/* ========================================
   About Section
   ======================================== */
.about {
    background-color: var(--color-background-alt);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text .section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

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

.about-lead {
    font-size: var(--font-size-xl);
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
}

.about-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.about-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-card {
    padding: var(--spacing-2xl);
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
}

.about-card blockquote p {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    color: var(--color-dark);
    font-style: italic;
}

.about-tagline {
    display: block;
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background-color: var(--color-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info .section-title {
    text-align: left;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.contact-info > p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    text-decoration: none;
}

.contact-method:hover {
    background-color: var(--color-primary-subtle);
    transform: translateX(5px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-detail {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.contact-value {
    font-weight: 600;
    color: var(--color-dark);
}

.contact-form-wrapper {
    background-color: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-dark);
}

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
}

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

/* ========================================
   Case Studies Grid (Homepage)
   ======================================== */
.case-studies {
    background-color: var(--color-background-alt);
    padding: var(--spacing-3xl) 0;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.work-card {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-decoration: none;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
}

.work-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-subtle);
}

.work-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-full);
    width: fit-content;
    margin-bottom: var(--spacing-md);
}

.work-card h3 {
    font-size: var(--font-size-2xl);
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.work-card p {
    color: var(--color-text-light);
    font-size: var(--font-size-base);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.work-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid #eee;
}

.work-stat {
    display: flex;
    flex-direction: column;
}

.work-stat-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.work-stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.work-link {
    color: var(--color-primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.work-card:hover .work-link {
    color: var(--color-primary-dark);
}


/* ========================================
   Case Study Pages
   ======================================== */
.case-study-hero {
    padding-top: 120px;
    padding-bottom: var(--spacing-3xl);
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-alt) 100%);
}

.back-link {
    display: inline-block;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--color-primary);
}

.case-study-hero-content {
    max-width: 800px;
}

.case-study-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.case-study-tag {
    padding: 0.25rem 0.75rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.case-study-industry {
    padding: 0.25rem 0.75rem;
    background-color: var(--color-white);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-full);
    border: 1px solid #ddd;
}

.case-study-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.case-study-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.case-study-stats-row {
    display: flex;
    gap: var(--spacing-2xl);
}

.case-study-stat {
    display: flex;
    flex-direction: column;
}

.case-study-stat .stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.case-study-stat .stat-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.case-study-section {
    padding: var(--spacing-3xl) 0;
}

.case-study-section-alt {
    background-color: var(--color-white);
}

.case-study-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-3xl);
}

.case-study-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.case-study-sidebar h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

.sidebar-item {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-md);
}

.sidebar-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
}

.sidebar-value {
    font-weight: 500;
    color: var(--color-dark);
}

.sidebar-link {
    font-weight: 500;
    color: var(--color-primary);
}

.case-study-content h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.case-study-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    line-height: 1.8;
}

.case-study-content-full {
    max-width: 900px;
    margin: 0 auto;
}

.case-study-content-full h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.case-study-content-full > p {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.case-study-list {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.case-study-list li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    line-height: 1.7;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.solution-card {
    padding: var(--spacing-xl);
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

.solution-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.solution-icon svg {
    width: 100%;
    height: 100%;
}

.solution-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.solution-card p {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.result-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid #eee;
}

.result-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    color: var(--color-primary);
}

.result-icon svg {
    width: 100%;
    height: 100%;
}

.result-text h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.result-text p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.6;
}

.highlight-block {
    background: linear-gradient(135deg, var(--color-primary-subtle) 0%, rgba(58, 139, 173, 0.05) 100%);
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-xl);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.highlight-block h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-dark);
}

.highlight-block p {
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.highlight-block p:last-child {
    margin-bottom: 0;
}

.case-study-cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    text-align: center;
}

.cta-content h2 {
    font-size: var(--font-size-3xl);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
}

.cta-content .btn-primary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

.cta-content .btn-primary:hover {
    background-color: transparent;
    color: var(--color-white);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    width: 250px;
    height: auto;
    filter: brightness(0) invert(1);
}

.footer-tagline {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .approach-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .approach-visual {
        order: -1;
    }


    .contact-content {
        grid-template-columns: 1fr;
    }

    .case-study-grid {
        grid-template-columns: 1fr;
    }

    .case-study-sidebar {
        position: static;
    }

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

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

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.75rem;
        --font-size-4xl: 2.25rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.25rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu .nav-link {
        opacity: 1;
        animation: none;
    }

    .nav-logo {
        opacity: 1;
        animation: none;
    }

    .nav-toggle {
        display: flex;
    }

    .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);
    }

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

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

    .approach-diagram {
        width: 220px;
        height: 380px;
    }

    .diagram-circle {
        width: 180px;
        height: 180px;
        left: 50% !important;
        right: auto !important;
        margin-left: -90px;
        animation: none;
    }

    .diagram-circle.human {
        top: 0;
    }

    .diagram-circle.ai {
        top: auto;
        bottom: 0;
    }

    .diagram-intersection {
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    .about-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .case-study-stats-row {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .case-study-title {
        font-size: var(--font-size-3xl);
    }

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

    .work-stats {
        gap: var(--spacing-md);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-lg);
    }

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-logo {
        width: 200px;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }
}