/* ============================================
   IDC – Ideation & Design Consultancy
   Premium Consultancy Website Styles
   ============================================ */

/* ----------------------------------------
   CSS Custom Properties (Design System)
   ---------------------------------------- */
:root {
    /* Colors */
    --color-primary-dark: #1a1a2e;
    --color-primary: #16213e;
    --color-primary-light: #1f4068;
    --color-accent: #c9a959;
    --color-accent-hover: #b8963f;
    --color-accent-light: rgba(201, 169, 89, 0.1);
    
    /* Backgrounds */
    --color-bg-light: #faf9f6;
    --color-bg-white: #ffffff;
    --color-bg-cream: #f5f3ef;
    --color-bg-dark: #1a1a2e;
    
    /* Text Colors */
    --color-text-primary: #2d3436;
    --color-text-secondary: #636e72;
    --color-text-muted: #95a5a6;
    --color-text-light: #ffffff;
    --color-text-accent: #c9a959;
    
    /* Borders */
    --color-border: #e8e6e1;
    --color-border-light: rgba(0, 0, 0, 0.06);
    
    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-slower: 700ms ease;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: var(--space-6);
    
    /* Navigation */
    --nav-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-bg-white);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

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

.section-eyebrow {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.section-title {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: var(--font-semibold);
    line-height: 1.2;
    color: var(--color-text-primary);
    margin-bottom: var(--space-6);
}

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

/* ----------------------------------------
   Buttons
   ---------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary {
    background-color: var(--color-primary-dark);
    color: var(--color-text-light);
    border: 1px solid var(--color-primary-dark);
}

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

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary-dark);
    color: var(--color-primary-dark);
}

.btn-full {
    width: 100%;
}

/* ----------------------------------------
   Navigation
   ---------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.nav.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

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

.nav-logo {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-primary-dark);
    letter-spacing: 0.05em;
}

.logo-tagline {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-primary-dark);
    transition: width var(--transition-base);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-light);
    background-color: var(--color-primary-dark);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background-color: var(--color-primary);
    transform: translateY(-1px);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger {
    width: 24px;
    height: 2px;
    background-color: var(--color-primary-dark);
    position: relative;
    transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary-dark);
    transition: transform var(--transition-base);
}

.hamburger::before {
    transform: translateY(-8px);
}

.hamburger::after {
    transform: translateY(8px);
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: var(--nav-height);
    background: linear-gradient(135deg, var(--color-bg-white) 0%, var(--color-bg-cream) 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-20) var(--container-padding);
}

.hero-content {
    max-width: 600px;
}

.hero-eyebrow {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--space-6);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: var(--text-6xl);
    font-weight: var(--font-semibold);
    line-height: 1.1;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-8);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
}

.hero-title .highlight {
    color: var(--color-accent);
    position: relative;
}

.hero-subtitle {
    font-size: var(--text-xl);
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-10);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
}

.hero-cta-group {
    display: flex;
    gap: var(--space-4);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
}

/* Hero Visual - Abstract Graphic */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-graphic {
    width: 400px;
    height: 400px;
    position: relative;
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 0.5s;
}

.graphic-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--color-border);
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 4s ease-in-out infinite;
}

.circle-2 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: var(--color-accent);
    opacity: 0.5;
    animation: pulse 4s ease-in-out infinite;
    animation-delay: 0.5s;
}

.circle-3 {
    width: 100px;
    height: 100px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--color-accent-light);
    border: none;
    animation: pulse 4s ease-in-out infinite;
    animation-delay: 1s;
}

.graphic-line {
    position: absolute;
    background-color: var(--color-border);
}

.line-1 {
    width: 1px;
    height: 100%;
    left: 50%;
    top: 0;
}

.line-2 {
    width: 100%;
    height: 1px;
    top: 50%;
    left: 0;
}

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: var(--space-10);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 1.2s;
}

.hero-scroll span {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-indicator {
    width: 20px;
    height: 32px;
    border: 1px solid var(--color-text-muted);
    border-radius: 10px;
    position: relative;
}

.scroll-indicator::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 2px;
    animation: scrollBounce 2s ease-in-out infinite;
}

/* ----------------------------------------
   Clients Bar
   ---------------------------------------- */
.clients-bar {
    background-color: var(--color-bg-white);
    padding: var(--space-12) 0;
    border-top: 1px solid var(--color-border-light);
    border-bottom: 1px solid var(--color-border-light);
}

.clients-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: var(--space-6);
}

.clients-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.client-name {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.client-divider {
    color: var(--color-border);
}

/* ----------------------------------------
   About Section
   ---------------------------------------- */
.about {
    padding: var(--space-32) 0;
    background-color: var(--color-bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-20);
    align-items: start;
}

.about-content {
    position: sticky;
    top: calc(var(--nav-height) + var(--space-8));
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.about-text p {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.value-card {
    padding: var(--space-8);
    background-color: var(--color-bg-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.value-card:hover {
    background-color: var(--color-bg-cream);
    transform: translateX(8px);
}

.value-number {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-4);
}

.value-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--color-primary-dark);
    margin-bottom: var(--space-3);
}

.value-desc {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ----------------------------------------
   Services Section
   ---------------------------------------- */
.services {
    padding: var(--space-32) 0;
    background-color: var(--color-bg-light);
}

.services-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-16);
}

.services-header .section-subtitle {
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.service-card {
    padding: var(--space-8);
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-card:hover .service-icon {
    color: var(--color-accent);
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-6);
    transition: color var(--transition-base);
}

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

.service-title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-primary-dark);
    margin-bottom: var(--space-3);
}

.service-desc {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ----------------------------------------
   Case Studies / Work Section
   ---------------------------------------- */
.work {
    padding: var(--space-32) 0;
    background-color: var(--color-bg-white);
}

.work-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-16);
}

.work-header .section-subtitle {
    margin: 0 auto;
}

.case-studies {
    display: flex;
    flex-direction: column;
    gap: var(--space-16);
}

.case-study {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
    padding: var(--space-12);
    background-color: var(--color-bg-light);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.case-study:hover {
    box-shadow: var(--shadow-lg);
}

.case-study-reverse {
    direction: rtl;
}

.case-study-reverse > * {
    direction: ltr;
}

.case-category {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-3);
}

.case-title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--font-semibold);
    color: var(--color-primary-dark);
    margin-bottom: var(--space-4);
}

.case-desc {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.case-services {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.case-services li {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-bg-white);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
}

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

.case-placeholder {
    width: 280px;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.case-placeholder::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, var(--color-accent-light) 0%, transparent 60%);
    top: -25%;
    left: -25%;
    opacity: 0.5;
}

.case-placeholder span {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-text-light);
    letter-spacing: 0.1em;
    position: relative;
    z-index: 1;
}

/* ----------------------------------------
   Why IDC Section
   ---------------------------------------- */
.why-idc {
    padding: var(--space-32) 0;
    background-color: var(--color-bg-dark);
}

.why-idc .section-eyebrow {
    color: var(--color-accent);
}

.why-idc .section-title {
    color: var(--color-text-light);
}

.why-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.why-card {
    padding: var(--space-8);
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.why-card:hover {
    background-color: rgba(255, 255, 255, 0.06);
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.why-icon {
    width: 40px;
    height: 40px;
    color: var(--color-accent);
    margin-bottom: var(--space-5);
}

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

.why-title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-light);
    margin-bottom: var(--space-3);
}

.why-desc {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

/* ----------------------------------------
   Testimonial Section
   ---------------------------------------- */
.testimonial {
    padding: var(--space-24) 0;
    background-color: var(--color-bg-cream);
}

.testimonial-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.quote-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    opacity: 0.5;
    margin-bottom: var(--space-8);
}

.testimonial-quote {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-normal);
    font-style: italic;
    line-height: 1.6;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-8);
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.author-name {
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
}

.author-company {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ----------------------------------------
   Contact Section
   ---------------------------------------- */
.contact {
    padding: var(--space-32) 0;
    background-color: var(--color-bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-content {
    position: sticky;
    top: calc(var(--nav-height) + var(--space-8));
}

.contact-desc {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-8);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-base);
    color: var(--color-text-secondary);
}

.contact-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--color-bg-light);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
}

.form-group input,
.form-group textarea {
    padding: var(--space-4);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

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

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

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
    background-color: var(--color-bg-dark);
    padding: var(--space-20) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-16);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: var(--space-6);
}

.footer-logo .logo-text {
    color: var(--color-text-light);
}

.footer-logo .logo-tagline {
    color: rgba(255, 255, 255, 0.5);
}

.footer-desc {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.footer-column h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-text-light);
    margin-bottom: var(--space-5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

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

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

.footer-bottom {
    padding-top: var(--space-8);
    text-align: center;
}

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

/* ----------------------------------------
   Animations
   ---------------------------------------- */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.05);
        opacity: 0.8;
    }
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(6px);
    }
}

/* Scroll-triggered animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----------------------------------------
   Responsive Design
   ---------------------------------------- */

/* Large Tablets and Small Desktops */
@media (max-width: 1024px) {
    :root {
        --text-6xl: 3rem;
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-12);
    }
    
    .hero-content {
        max-width: 700px;
        margin: 0 auto;
    }
    
    .hero-cta-group {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .about-content {
        position: static;
    }
    
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .contact-content {
        position: static;
        text-align: center;
    }
    
    .contact-info {
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .footer-brand {
        text-align: center;
    }
    
    .footer-desc {
        max-width: none;
    }
}

/* Tablets */
@media (max-width: 768px) {
    :root {
        --text-6xl: 2.5rem;
        --text-5xl: 2rem;
        --text-4xl: 1.75rem;
        --text-3xl: 1.5rem;
        --space-32: 5rem;
        --space-24: 4rem;
        --space-20: 3rem;
        --space-16: 2.5rem;
    }
    
    .nav-menu {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background-color: var(--color-bg-white);
        flex-direction: column;
        padding: var(--space-8);
        gap: var(--space-4);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .hamburger {
        background-color: transparent;
    }
    
    .nav-toggle.active .hamburger::before {
        transform: rotate(45deg);
    }
    
    .nav-toggle.active .hamburger::after {
        transform: rotate(-45deg);
    }
    
    .nav-link,
    .nav-cta {
        width: 100%;
        text-align: center;
        padding: var(--space-4);
    }
    
    .nav-cta {
        margin-top: var(--space-4);
    }
    
    .hero-cta-group {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .btn {
        width: 100%;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .case-study {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .case-study-reverse {
        direction: ltr;
    }
    
    .case-services {
        justify-content: center;
    }
    
    .case-visual {
        order: -1;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .clients-logos {
        gap: var(--space-3);
    }
    
    .client-name {
        font-size: var(--text-xs);
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --text-6xl: 2rem;
        --text-5xl: 1.75rem;
        --text-4xl: 1.5rem;
        --text-3xl: 1.25rem;
        --container-padding: var(--space-4);
    }
    
    .hero {
        min-height: auto;
        padding-top: calc(var(--nav-height) + var(--space-8));
        padding-bottom: var(--space-16);
    }
    
    .hero-container {
        padding: var(--space-8) var(--container-padding);
    }
    
    .hero-scroll {
        display: none;
    }
    
    .testimonial-quote {
        font-size: var(--text-xl);
    }
    
    .contact-form-wrapper {
        padding: var(--space-6);
    }
    
    .case-placeholder {
        width: 200px;
        height: 150px;
    }
    
    .case-placeholder span {
        font-size: var(--text-2xl);
    }
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}