/* ============ CSS VARIABLES ============ */
:root {
    --primary-bg: #ffffff;
    --primary-text: #0a0a0a;
    --secondary-text: #626262;
    --accent: #0b8b8b;
    --border-color: #f0f0f0;
    --light-bg: #fafafa;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Container widths */
    --max-width: 1200px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--primary-text);
    background: var(--primary-bg);
}

/* ============ HEADER ============ */
header {
    position: sticky;
    top: 0;
    background: var(--primary-bg);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    backdrop-filter: blur(8px);
    background-color: rgba(255, 255, 255, 0.95);
}

nav {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
}

.nav-brand {
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: -0.3px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--primary-text);
    transition: color 0.2s;
    font-weight: 500;
    font-size: 0.9rem;
}

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

/* ============ HERO SECTION (TWO-COLUMN) ============ */
.hero {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.hero-left {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -1.5px;
    color: var(--primary-text);
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    font-size: 0.95rem;
    color: var(--secondary-text);
}

.hero-meta .label {
    font-weight: 500;
    color: var(--primary-text);
}

.social-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.social-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--primary-text);
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-button:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(11, 139, 139, 0.2);
}

.hero-right {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-intro {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--secondary-text);
    margin-bottom: var(--spacing-lg);
}

.hero-intro p {
    margin-bottom: var(--spacing-md);
}

.hero-intro strong {
    color: var(--primary-text);
    font-weight: 600;
}

/* ============ SERVICES (NOW FIRST) ============ */
.services {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.5px;
    color: var(--primary-text);
}

/* OLD CARD STYLES - COMMENTED OUT */
/*
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    padding: 0;
    border-left: 2px solid var(--accent);
    padding-left: var(--spacing-lg);
    transition: all 0.3s ease;
}

.service-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-text);
}

.service-card p {
    font-size: 0.9rem;
    color: var(--secondary-text);
    line-height: 1.7;
}
*/

/* ============ ACCORDION STYLES ============ */
.accordion {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    max-width: 1000px;
    margin: 0 auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-button {
    width: 100%;
    padding: 24px 28px;
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    font-size: 17px;
    font-weight: 500;
    color: var(--primary-text);
    transition: background-color 200ms ease;
}

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

.accordion-button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.accordion-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 300;
    transition: transform 300ms ease;
    margin-top: 2px;
}

.accordion-button.expanded .accordion-icon {
    transform: rotate(90deg);
}

.accordion-text {
    flex: 1;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 300ms ease, padding 300ms ease;
}

.accordion-content.expanded {
    max-height: 1000px;
}

.accordion-body {
    padding: 0 28px 28px 60px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--secondary-text);
}

.accordion-body strong {
    font-weight: 600;
    color: var(--primary-text);
}

.accordion-body ul {
    margin: 12px 0;
    padding-left: 20px;
}

.accordion-body li {
    margin-bottom: 8px;
}

.accordion-body p {
    margin: 14px 0;
}

/* ============ FEATURED WORK (NOW SECOND) ============ */
.featured-work {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.project-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #f5f5f5 0%, #efefef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-text);
    font-size: 0.9rem;
}

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

.project-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-text);
}

.project-desc {
    font-size: 0.9rem;
    color: var(--secondary-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.tag {
    display: inline-block;
    background: #f0f0f0;
    color: var(--secondary-text);
    padding: 0.3rem 0.7rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.project-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link:hover {
    gap: 0.75rem;
}

/* ============ TECH STACK ============ */
.tech-stack {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-pill {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    color: var(--primary-text);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.tech-pill:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ============ CTA SECTION ============ */
.cta-section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.cta-text {
    font-size: 1rem;
    color: var(--secondary-text);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 1px solid var(--accent);
}

.cta-button:hover {
    background: #086565;
    border-color: #086565;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(11, 139, 139, 0.15);
}

.cta-secondary {
    display: inline-block;
    border: 1px solid var(--border-color);
    color: var(--primary-text);
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    background: transparent;
}

.cta-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(11, 139, 139, 0.02);
}

/* ============ FOOTER ============ */
footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-lg);
    text-align: center;
    color: var(--secondary-text);
    font-size: 0.85rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--primary-text);
    text-decoration: none;
    transition: color 0.2s;
    font-weight: 500;
}

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

.footer-meta {
    color: var(--secondary-text);
    font-size: 0.8rem;
}

.footer-meta p {
    margin-bottom: 0.25rem;
}

/* ============ SCROLL ANIMATIONS ============ */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .hero h1 {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-meta {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

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

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

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

    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .cta-button,
    .cta-secondary {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    nav {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }

    .hero {
        padding: var(--spacing-lg) var(--spacing-md);
    }

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

    .hero-meta {
        font-size: 0.85rem;
    }

    .hero-intro {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .tech-grid {
        gap: 0.4rem;
    }

    .tech-pill {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
}