/* ============================================
   INTERACTIVE SHOWCASE PORTFOLIO - ZAIN
   ============================================ */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --dark: #0f172a;
    --darker: #020617;
    --light: #f8fafc;
    --gray: #64748b;
    --glass: rgba(15, 23, 42, 0.8);
    --glass-border: rgba(99, 102, 241, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--darker);
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}

::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--dark);
}
::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--light);
    text-decoration: none;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light);
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--light);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s;
}

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: 0.15;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    opacity: 0.1;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.hero-container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-greeting {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
}

#typingText {
    background: linear-gradient(135deg, var(--light) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.typing-cursor {
    color: var(--primary);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.hero-description {
    color: var(--gray);
    margin-bottom: 2rem;
    max-width: 400px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

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

.btn-secondary:hover {
    background: var(--glass);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.hero-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: var(--gray);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s;
}

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

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

.hero-card {
    width: 100%;
    max-width: 380px;
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.card-glare {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.info-grid {
    display: grid;
    gap: 1rem;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.info-label {
    font-size: 0.75rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-value {
    font-size: 0.875rem;
    color: var(--light);
    font-weight: 500;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--gray);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-top: 0.5rem;
}

.section-desc {
    color: var(--gray);
    max-width: 500px;
    margin: 1rem auto 0;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: var(--dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text {
    color: var(--gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--gray);
    margin-top: 0.5rem;
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.timeline-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.timeline-marker {
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    margin-top: 0.5rem;
    flex-shrink: 0;
}

.timeline-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.timeline-company {
    font-size: 0.875rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.timeline-desc {
    font-size: 0.875rem;
    color: var(--gray);
    line-height: 1.6;
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
    background: var(--darker);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.skill-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.skill-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
}

.skill-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.skill-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px;
    width: 0;
    transition: width 1.5s ease;
}

.skill-percent {
    font-size: 0.875rem;
    color: var(--gray);
    font-family: 'JetBrains Mono', monospace;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects {
    background: var(--dark);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-placeholder {
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.3);
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.project-desc {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: 100px;
    font-family: 'JetBrains Mono', monospace;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    font-size: 0.875rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.project-link:hover {
    color: var(--light);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: var(--darker);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-item h4 {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 0.25rem;
}

.contact-item p {
    font-size: 1rem;
    color: var(--light);
}

.contact-form {
    display: grid;
    gap: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--light);
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

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

.form-message {
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    text-align: center;
}

.form-message.success {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.form-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
}

.footer p {
    color: var(--gray);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.footer-social a {
    color: var(--gray);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s;
}

.footer-social a:hover {
    color: var(--primary);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--glass);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateY(-150%);
        transition: transform 0.3s;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin: 0 auto 2rem;
    }

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

    .hero-visual {
        order: -1;
    }

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

    .about-stats {
        grid-template-columns: 1fr;
    }

    section {
        padding: 4rem 0;
    }
}