/* Terminal Aesthetic CSS Variables */
:root {
    --bg-color: #050505;
    /* Almost black */
    --surface-color: rgba(15, 20, 25, 0.7);
    --border-color: #1a231a;
    --text-primary: #e0e0e0;
    --text-secondary: #888888;

    /* The Cyber Green Accent */
    --accent-main: #00ff41;
    /* classic terminal green */
    --accent-glow: rgba(0, 255, 65, 0.2);

    --font-code: 'JetBrains Mono', monospace;
    --font-sans: 'Space Grotesk', sans-serif;

    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Technical Grid Background */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image:
        linear-gradient(rgba(0, 255, 65, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 65, 0.03) 1px, transparent 1px);
    background-size: 30px 30px;
    z-index: -1;
    pointer-events: none;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-weight: 700;
}

.accent-text {
    color: var(--accent-main);
}

/* Glass & Terminal Panels */
.glass-panel {
    background: var(--surface-color);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    padding: 2rem;
    position: relative;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-main), transparent);
    opacity: 0.3;
}

.glass-panel:hover {
    border-color: rgba(0, 255, 65, 0.3);
    box-shadow: 0 0 20px var(--accent-glow);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    font-family: var(--font-code);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: transparent;
}

.primary-btn {
    background-color: rgba(0, 255, 65, 0.1);
    color: var(--accent-main);
    border: 1px solid var(--accent-main);
}

.primary-btn:hover {
    background-color: var(--accent-main);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

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

.outline-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(5, 5, 5, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-code);
    font-size: 1.1rem;
    font-weight: 700;
}

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

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

.logo .cursor {
    color: var(--accent-main);
    animation: blink 1s step-end infinite;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-family: var(--font-code);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

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

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

#lang-toggle {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.hamburger {
    display: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.5rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    /* Offset for navbar */
}

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

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(0, 255, 65, 0.05);
    border: 1px solid rgba(0, 255, 65, 0.2);
    border-radius: 50px;
    font-family: var(--font-code);
    font-size: 0.8rem;
    color: var(--accent-main);
    margin-top: 60px;
    /* Normal ekran üst boşluğu */
    margin-bottom: 1rem;
}

.pulse {
    width: 8px;
    height: 8px;
    background-color: var(--accent-main);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-main);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 255, 65, 0.7);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(0, 255, 65, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 255, 65, 0);
    }
}

.terminal-block {
    margin-bottom: 1.5rem;
}

.cmd {
    font-family: var(--font-code);
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.cmd span {
    color: var(--accent-main);
}

.name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.typing-container {
    font-family: var(--font-code);
    font-size: 1.2rem;
    color: var(--accent-main);
    min-height: 1.8rem;
}

.cursor-blink {
    animation: blink 1s step-end infinite;
}

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

.bio {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 90%;
    margin-bottom: 2rem;
}

.tech-stack-box {
    margin-bottom: 2.5rem;
    font-family: var(--font-code);
}

.tech-stack-box .comment {
    color: #5c6370;
    margin-bottom: 0.5rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tags span {
    font-size: 0.85rem;
    color: var(--text-primary);
    padding: 0.3rem 0;
    border-bottom: 1px solid var(--border-color);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.5rem;
}

.social-links a:hover {
    color: var(--accent-main);
    transform: translateY(-3px);
}

/* Hero Image & Window Frame */
.window-frame {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.window-header {
    background: #111;
    padding: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.red {
    background: #ff5f56;
}

.yellow {
    background: #ffbd2e;
}

.green {
    background: #27c93f;
}

.window-title {
    margin-left: auto;
    margin-right: auto;
    font-family: var(--font-code);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.window-frame img {
    width: 100%;
    height: auto;
    display: block;
    filter: contrast(1.1) brightness(0.9);
}

/* Common Section Styles */
section {
    padding: 8rem 0;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 4rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-title .num {
    font-family: var(--font-code);
    color: var(--accent-main);
    font-size: 1.5rem;
    font-weight: 400;
}

.section-title::after {
    content: '';
    flex-grow: 1;
    height: 1px;
    background: var(--border-color);
    margin-left: 1rem;
}

/* Timeline / Experience */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    height: 100%;
    width: 1px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 3rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 15px;
    top: 5px;
    width: 11px;
    height: 11px;
    background: var(--bg-color);
    border: 2px solid var(--accent-main);
    border-radius: 50%;
    z-index: 2;
    box-shadow: 0 0 10px var(--accent-glow);
}

.timeline-date {
    font-family: var(--font-code);
    color: var(--accent-main);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.highlight-tag {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.2rem 0.6rem;
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--accent-main);
    color: var(--accent-main);
    font-size: 0.75rem;
    font-family: var(--font-code);
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    padding: 2.5rem;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-info {
    padding: 0;
}

.project-type {
    font-family: var(--font-code);
    color: var(--accent-main);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.project-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.project-info p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Github Repos grid */
.github-header {
    text-align: center;
    margin-bottom: 2rem;
}

.github-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.github-header p {
    color: var(--text-secondary);
}

.github-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.repo-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.repo-card:hover {
    border-color: var(--accent-main);
    transform: translateY(-5px);
}

.repo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.repo-header i {
    font-size: 1.2rem;
    color: var(--accent-main);
}

.repo-links a {
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.repo-links a:hover {
    color: var(--text-primary);
}

.repo-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.repo-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.repo-stats {
    display: flex;
    gap: 1rem;
    font-family: var(--font-code);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.repo-stats span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.loading-text {
    text-align: center;
    grid-column: 1 / -1;
    color: var(--accent-main);
    font-family: var(--font-code);
    padding: 2rem;
    animation: pulse 2s infinite;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-text p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.method {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.method i {
    font-size: 1.2rem;
    color: var(--accent-main);
}

.method a {
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.95rem;
}

.method a:hover {
    color: var(--accent-main);
    text-decoration: underline;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-family: var(--font-code);
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 0.8rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-main);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

.submit-btn {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.copyright {
    font-family: var(--font-code);
    font-size: 0.8rem;
}

/* Animations (Intersection Observer Targets) */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
}

.slide-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .status-badge,
    .cta-buttons,
    .social-links,
    .tags {
        justify-content: center;
    }

    .bio {
        margin: 0 auto 2rem auto;
    }

    .hero-image {
        max-width: 400px;
        margin: 0 auto;
    }

    .project-card {
        padding: 1.5rem;
    }

    .project-info {
        padding: 0;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {

    .nav-links,
    .nav-actions {
        display: none;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(5, 5, 5, 0.95);
        padding: 2rem;
        border-bottom: 1px solid var(--border-color);
    }

    .hamburger {
        display: block;
    }

    section {
        padding: 4rem 0;
    }
}