/* =====================================================
   CSS Variables (imported from ../global.css)
   ===================================================== */
:root {
    /* Color variables */
    --color-primary: #000000;
    --color-secondary: #ffffff;
    --color-accent: #ff6b35;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-border: #e0e0e0;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f5;
    
    /* Font variables */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-secondary: 'Georgia', serif;
    
    /* Fluid font sizing with clamp() */
    --font-size-h1: clamp(2rem, 5vw, 3.5rem);
    --font-size-h2: clamp(1.75rem, 4vw, 2.5rem);
    --font-size-h3: clamp(1.25rem, 3vw, 1.4rem);
    --font-size-body: clamp(0.95rem, 2vw, 1.1rem);
    --font-size-small: clamp(0.85rem, 1.5vw, 0.95rem);
    
    /* Spacing variables */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transition variables */
    --transition-fast: 0.2s ease-in-out;
    --transition-smooth: 0.4s ease-in-out;
    --transition-slow: 0.8s ease-in-out;
}

/* =====================================================
   Global & Layout
   ===================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* 12-Column CSS Grid Container */
.container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* =====================================================
   Skip to Content Link (Refined Accessibility)
   ===================================================== */
.skip-to-content {
    position: absolute;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    width: 1px;
    height: 1px;
    overflow: hidden;
    z-index: 999;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-secondary);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
}

.skip-to-content:focus {
    clip: auto;
    width: auto;
    height: auto;
    overflow: visible;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
}

/* =====================================================
   Navbar & Header
   ===================================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    transition: all var(--transition-smooth);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    gap: var(--spacing-lg);
}

.logo {
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text);
    font-size: var(--font-size-small);
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-smooth);
}

.nav-links a:hover::after,
.nav-links a:focus::after {
    width: 100%;
}

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

/* =====================================================
   Hero Section
   ===================================================== */
.hero-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg);
}

.hero-content .container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-text {
    grid-column: span 6;
}

.hero-text h1 {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.hero-text p {
    font-size: var(--font-size-body);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    max-width: 550px;
}

.hero-image {
    grid-column: span 6;
    display: flex;
    justify-content: center;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* =====================================================
   Button Styles
   ===================================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-primary);
    color: var(--color-secondary);
    text-decoration: none;
    border: 2px solid var(--color-primary);
    border-radius: 4px;
    font-size: var(--font-size-small);
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:hover,
.btn:focus {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 53, 0.3);
}

button.btn {
    border: none;
}

/* =====================================================
   About Section - Asymmetric Creator Grid
   ===================================================== */
.about-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg-alt);
}

.about-section .container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-xxl);
    align-items: start;
}

.col-left {
    grid-column: span 4;
    padding-top: var(--spacing-xl);
}

.col-left h2 {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.col-right {
    grid-column: span 8;
}

.col-right p {
    font-size: var(--font-size-body);
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.col-right p strong {
    font-weight: 700;
    color: var(--color-primary);
}

.col-right p em {
    font-style: italic;
    color: var(--color-text-light);
}

/* =====================================================
   Projects Section
   ===================================================== */
.projects-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg);
}

.projects-section .container {
    grid-template-columns: repeat(12, 1fr);
}

.projects-section h2 {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xxl);
    letter-spacing: -0.02em;
    grid-column: span 12;
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    grid-column: span 12;
}

.service-card {
    padding: var(--spacing-xl);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all var(--transition-smooth);
}

.service-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.service-card h3 {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

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

.service-card strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* =====================================================
   Case Studies / Work Section - Project Cards
   ===================================================== */
.case-studies-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg);
}

.case-studies-section .container {
    grid-template-columns: repeat(12, 1fr);
}

.case-studies-section h2 {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xxl);
    letter-spacing: -0.02em;
    grid-column: span 12;
}

/* Project Cards Vertical Stack */
.project-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
    grid-column: span 12;
}

.project-card {
    padding: var(--spacing-xxl) 0;
    border-top: 1px solid var(--color-border);
    background-color: transparent;
    transition: all var(--transition-smooth);
}

.project-card:last-child {
    border-bottom: 1px solid var(--color-border);
}

.project-card:hover {
    transform: translateX(8px);
}

/* Project Header - Flex Layout */
.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.project-header h3 {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.01em;
    flex: 1;
}

.project-role {
    font-size: var(--font-size-small);
    font-weight: 600;
    color: var(--color-accent);
    white-space: nowrap;
    padding-top: 4px;
}

/* Project Images */
.project-image {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    object-position: center;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
    display: block;
    transition: all var(--transition-smooth);
}

.project-card:hover .project-image {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.project-description {
    font-size: var(--font-size-body);
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
}

.project-description strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* Tech Badges */
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background-color: #eee;
    color: var(--color-text);
    font-size: 0.8rem;
    border-radius: 20px;
    font-weight: 500;
    border: 1px solid #ddd;
    transition: all var(--transition-fast);
}

.tech-badge:hover {
    background-color: #e0e0e0;
    border-color: var(--color-accent);
}

/* =====================================================
   Consultation Section
   ===================================================== */
.consultation-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg-alt);
}

.consultation-section .container {
    grid-template-columns: repeat(12, 1fr);
    text-align: center;
}

.consultation-section h2 {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    grid-column: span 12;
}

.consultation-section > .container > p {
    font-size: var(--font-size-body);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xxl);
    grid-column: span 12;
}

.calendly-inline-widget {
    margin: 0 auto;
    grid-column: span 12;
}

/* =====================================================
   Contact Section - Asymmetric Creator Grid
   ===================================================== */
.contact-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg);
}

.contact-section .container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-xxl);
    align-items: start;
}

.contact-section .col-left {
    grid-column: span 4;
    padding-top: var(--spacing-lg);
}

.contact-section .col-right {
    grid-column: span 8;
}

.contact-section h2 {
    font-family: var(--font-secondary);
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.contact-section .col-left p {
    font-size: var(--font-size-body);
    color: var(--color-text-light);
}

/* =====================================================
   Form Styles
   ===================================================== */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-small);
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-primary);
    font-size: var(--font-size-small);
    color: var(--color-text);
    background-color: var(--color-secondary);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-accent);
}

.checkbox-group label {
    cursor: pointer;
    font-weight: 400;
    font-size: var(--font-size-small);
    margin: 0;
}

/* =====================================================
   Footer
   ===================================================== */
footer {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xxl);
}

footer .container {
    grid-template-columns: repeat(12, 1fr);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    grid-column: span 12;
}

footer p {
    font-size: var(--font-size-small);
    color: rgba(255, 255, 255, 0.8);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    list-style: none;
}

.footer-links a {
    color: var(--color-secondary);
    text-decoration: none;
    font-size: var(--font-size-small);
    transition: color var(--transition-fast);
}

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

/* =====================================================
   Animations - Fade-in-up with Intersection Observer
   ===================================================== */
section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow) ease-out,
                transform var(--transition-slow) ease-out;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =====================================================
   Responsive Design
   ===================================================== */
@media (max-width: 1024px) {
    .hero-text {
        grid-column: span 12;
    }

    .hero-image {
        grid-column: span 12;
    }

    .about-section .container,
    .contact-section .container {
        gap: var(--spacing-lg);
    }

    .col-left {
        grid-column: span 12;
        padding-top: 0;
    }

    .col-right {
        grid-column: span 12;
    }

    .hero-text h1,
    .about-section h2,
    .contact-section h2 {
        font-size: clamp(1.5rem, 3vw, 2.2rem);
    }

    .projects-section h2,
    .case-studies-section h2 {
        font-size: clamp(1.5rem, 3vw, 2.2rem);
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .project-role {
        white-space: normal;
    }

    .project-image {
        max-height: 350px;
    }
}

@media (max-width: 768px) {
    .container {
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }

    .navbar .container {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .nav-links {
        gap: var(--spacing-lg);
        justify-content: center;
    }

    .hero-text h1 {
        font-size: clamp(1.25rem, 2.5vw, 2rem);
    }

    .hero-text p {
        font-size: clamp(0.9rem, 1.5vw, 1rem);
    }

    .service-cards {
        grid-template-columns: 1fr;
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .project-role {
        white-space: normal;
        padding-top: var(--spacing-sm);
    }

    .project-image {
        max-height: 280px;
    }

    .project-tech {
        gap: var(--spacing-xs);
    }

    .tech-badge {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-section,
    .about-section,
    .projects-section,
    .case-studies-section,
    .consultation-section,
    .contact-section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: clamp(1rem, 2vw, 1.5rem);
    }

    .service-card {
        padding: var(--spacing-lg);
    }

    .project-card {
        padding: var(--spacing-lg) 0;
    }

    .project-image {
        max-height: 220px;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .navbar .container {
        flex-direction: row;
        gap: var(--spacing-sm);
    }

    .nav-links {
        gap: var(--spacing-md);
    }

    .project-tech {
        gap: var(--spacing-xs);
    }

    .tech-badge {
        font-size: 0.7rem;
        padding: 0.25rem 0.5rem;
    }
}