/* ==========================================================================
   1. GENEL AYARLAR, DEĞİŞKENLER VE TEMALAR
   ========================================================================== */
/* LOCAL FONT TANIMLAMASI (.ttf için) */
@font-face {
    font-family: 'JetBrains Mono';
    src: url('./fonts/JetBrainsMono-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: optional;
}

@font-face {
    font-family: 'JetBrains Mono';
    src: url('./fonts/JetBrainsMono-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: optional;
}

:root {
    --bg-color: #0a0b10;
    --card-bg: #121620;
    --border-color: rgba(0, 255, 102, 0.25);
    --text-primary: #f1f5f9;
    --text-muted: #94a3b8;
    --accent-green: #00ff66;
    --accent-glow: rgba(0, 255, 102, 0.6);
    --accent-green-glow: rgba(0, 255, 102, 0.25);
    --navbar-bg: rgba(10, 11, 16, 0.95);
    
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* Renk Temaları */
body.theme-blue {
    --accent-green: #00f0ff;
    --accent-glow: rgba(0, 240, 255, 0.6);
}

body.theme-red {
    --accent-green: #ff0055;
    --accent-glow: rgba(255, 0, 85, 0.6);
}

body.theme-purple {
    --accent-green: #b026ff;
    --accent-glow: rgba(176, 38, 255, 0.6);
}

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

html {
    scroll-behavior: smooth;
    overflow-y: auto !important;
}

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

/* ÖZEL SCROLLBAR */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: var(--accent-green);
    border-radius: 4px;
    box-shadow: 0 0 10px var(--accent-green-glow);
}

/* MATRIX CANVAS ARKA PLAN */
#matrix-canvas {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: -1 !important;
    pointer-events: none !important;
    opacity: 0.35 !important;
    transition: opacity 0.4s ease;
}

#matrix-canvas.disabled {
    opacity: 0 !important;
}

/* ==========================================================================
   2. NAVBAR VE SÜZÜLEN KAPSÜL
   ========================================================================== */
.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 22px;
    font-weight: 700;
    color: #ffffff;
}

.navbar {
    position: fixed;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 900px;
    height: 50px;
    background: rgba(10, 11, 16, 0.45) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    z-index: 9999 !important;
    display: flex;
    align-items: center;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: all 0.3s ease;
}

.nav-container {
    width: 100%;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    font-size: 16px;
}

.highlight {
    color: var(--accent-green);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-item {
    color: var(--text-muted, #94a3b8);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 4px;
    font-family: var(--font-mono, monospace) !important; 
    font-size: 14px !important;                          
    font-weight: 500;
    transition: all 0.3s ease;
}

/* Hover ve Aktif (Kalıcı Neon Yeşil) Durumu */
.nav-item:hover,
.nav-item.active {
    color: var(--accent-green, #00ff66) !important;
    background: rgba(0, 255, 102, 0.1);
    text-shadow: 0 0 8px var(--accent-glow, rgba(0, 255, 102, 0.8)), 
                 0 0 15px var(--accent-glow, rgba(0, 255, 102, 0.4));
    box-shadow: inset 0 -2px 0 var(--accent-green, #00ff66);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.matrix-btn {
    background: rgba(0, 255, 102, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    padding: 6px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 12px;
    transition: all 0.2s ease;
}

.matrix-btn:hover {
    background: var(--accent-green);
    color: #000;
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}

/* ==========================================================================
   3. İÇERİK DÜZENİ VE HERO SECTION
   ========================================================================== */
.main-content {
    position: relative;
    z-index: 10 !important;
    padding-top: 70px;
}

.section {
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 20px;
}

.section-title {
    font-family: var(--font-mono);
    font-size: 32px;
    margin-bottom: 20px;
    color: #fff;
    margin-top: -50px;
}

.hero-section {
    min-height: calc(100vh - 70px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.terminal-badge {
    font-family: var(--font-mono);
    background: rgba(0, 255, 102, 0.1);
    color: var(--accent-green);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.hero-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 15px;
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 18px;
    max-width: 600px;
    margin-bottom: 30px;
}

/* NEON İSİM EFEKTİ */
.neon-name {
    color: var(--accent-green) !important;
    font-weight: 700;
    text-shadow: 
        0 0 5px var(--accent-glow),
        0 0 10px var(--accent-glow),
        0 0 20px var(--accent-glow),
        0 0 40px var(--accent-glow) !important;
    animation: neonGlow 1.5s infinite alternate ease-in-out;
}

@keyframes neonGlow {
    0% {
        text-shadow: 0 0 4px var(--accent-glow), 0 0 8px var(--accent-glow);
    }
    100% {
        text-shadow: 0 0 10px var(--accent-glow), 0 0 20px var(--accent-glow), 0 0 35px var(--accent-glow);
    }
}

/* BUTONLAR */
.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--accent-green);
    color: #000;
    box-shadow: 0 0 15px var(--accent-green-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

/* KARTLAR & GRID YAPISI */
.card {
    background: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 15px;
}

.skill-card h3 {
    font-size: 16px;
    color: var(--accent-green);
    margin-bottom: 12px;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tags span {
    font-family: var(--font-mono);
    font-size: 11px;
    background: rgba(0, 255, 102, 0.08);
    color: var(--accent-green);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid rgba(0, 255, 102, 0.15);
}

/* ==========================================================================
   4. İLETİŞİM BÖLÜMÜ
   ========================================================================== */
.contact-container {
    text-align: center;
    padding: 10px;
}

.contact-subtitle {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 25px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
    margin: 15px auto;
    max-width: 800px;
}

.contact-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 255, 102, 0.15);
    border-radius: 12px;
    padding: 25px 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-icon-wrapper {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.custom-icon {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease, filter 0.3s ease;
    filter: drop-shadow(0 0 4px var(--accent-green-glow));
}

.contact-name {
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
    font-family: var(--font-sans);
}

.contact-detail {
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-mono);
    word-break: break-all;
}

.contact-card:hover {
    background: rgba(0, 255, 102, 0.08);
    border-color: var(--accent-green);
    transform: translateY(-6px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4), 0 0 15px var(--accent-green-glow);
}

.contact-card:hover .custom-icon {
    transform: scale(1.15);
    filter: drop-shadow(0 0 8px var(--accent-green));
}

/* ==========================================================================
   5. PROJELER SAYFASI VE FİLTRELEME
   ========================================================================== */
.projects-section {
    padding-top: 120px;
    padding-bottom: 80px;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-desc {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    font-size: 15px;
}

.project-filter-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 45px;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 255, 102, 0.2);
    color: var(--text-muted);
    padding: 8px 20px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--accent-green);
    border-color: var(--accent-green);
    background: rgba(0, 255, 102, 0.1);
    box-shadow: 0 0 12px var(--accent-glow);
    transform: translateY(-2px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto;
}

.project-card {
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 1;
    transform: scale(1);
}

.project-card.hide {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
}

.project-card-inner {
    background: rgba(12, 15, 23, 0.85);
    border: 1px solid rgba(0, 255, 102, 0.15);
    border-radius: 12px;
    padding: 25px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.project-card:hover .project-card-inner {
    border-color: var(--accent-green);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--accent-glow);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.project-badge {
    font-size: 11px;
    font-family: var(--font-mono);
    background: rgba(0, 255, 102, 0.1);
    color: var(--accent-green);
    padding: 3px 10px;
    border-radius: 12px;
    border: 1px solid rgba(0, 255, 102, 0.2);
}

.project-title {
    color: #ffffff;
    font-size: 20px;
    margin-bottom: 10px;
}

.project-desc {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.project-img-wrapper {
    width: 100%;
    height: 180px;
    border-radius: 8px;
    overflow: hidden;
    margin: 15px 0;
    border: 1px solid rgba(0, 255, 102, 0.2);
    background: #050508;
}

.resim {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform 0.4s ease;
}

.project-card:hover .resim {
    transform: scale(1.05);
}

.project-links {
    display: flex;
    gap: 12px;
    margin-top: 15px;
}

.btn-link {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 255, 102, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green) !important;
    border-radius: 6px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-link:hover {
    background: var(--accent-green);
    color: #000000 !important;
    box-shadow: 0 0 12px rgba(0, 255, 102, 0.4);
}

.btn-link.secondary {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    color: #94a3b8 !important;
}

.btn-link.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #ffffff;
    color: #ffffff !important;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

/* ==========================================================================
   6. DİNAMİK YAZI & TERMINAL MODAL
   ========================================================================== */
.typewriter-container {
    font-family: var(--font-mono);
    font-size: 20px;
    color: var(--accent-green);
    margin: 10px 0 20px 0;
    min-height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.typewriter-cursor {
    color: var(--accent-green);
    font-weight: bold;
    animation: blinkCursor 0.8s infinite;
    margin-left: 2px;
}

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

.btn-terminal {
    background: rgba(0, 255, 102, 0.05);
    border: 1px dashed var(--accent-green);
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 16px;
    border-radius: 20px;
    margin-bottom: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-terminal:hover {
    background: rgba(0, 255, 102, 0.2);
    box-shadow: 0 0 12px var(--accent-glow);
    transform: translateY(-2px);
}

.terminal-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

.terminal-modal.active {
    display: flex;
}

.terminal-window {
    width: 90%;
    max-width: 650px;
    height: 380px;
    background: #0c0f17;
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    box-shadow: 0 0 25px var(--accent-green-glow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-family: var(--font-mono);
}

.terminal-header {
    background: #161b26;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(0, 255, 102, 0.2);
    position: relative;
}

.terminal-dots { display: flex; gap: 8px; }
.dot { width: 12px; height: 12px; border-radius: 50%; cursor: pointer; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    color: #94a3b8;
    font-size: 12px;
}

.terminal-body {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    font-size: 13px;
    color: #f1f5f9;
}

.terminal-input-row {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    background: #090b10;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-prompt {
    color: var(--accent-green);
    font-size: 13px;
    margin-right: 10px;
    white-space: nowrap;
}

#terminal-input {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 13px;
    width: 100%;
}

/* ==========================================================================
   7. CONFIG & THEME SWITCHER
   ========================================================================== */
.config-toggle-btn {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 48px;
    height: 48px;
    background: #0a0d14;
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    z-index: 999;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.6);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.config-toggle-btn:hover {
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 0 20px var(--accent-glow);
}

.config-panel {
    position: fixed;
    bottom: 85px;
    right: 25px;
    background: rgba(10, 13, 20, 0.95);
    border: 1px solid var(--accent-green);
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 15px var(--accent-glow);
    z-index: 999;
    display: none;
    flex-direction: column;
    gap: 12px;
    backdrop-filter: blur(10px);
}

.config-panel.active {
    display: flex;
    animation: fadeIn 0.2s ease-in-out;
}

.theme-options { display: flex; gap: 10px; }

.color-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.color-dot:hover { transform: scale(1.2); }
.color-dot.active { border-color: #ffffff; box-shadow: 0 0 8px #ffffff; }
.color-dot.green { background: #00ff66; }
.color-dot.blue  { background: #00f0ff; }
.color-dot.red   { background: #ff0055; }
.color-dot.purple{ background: #b026ff; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   8. FOOTER STİLLERİ
   ========================================================================== */
.footer {
    background: #04060a;
    border-top: 1px solid rgba(0, 255, 102, 0.15);
    padding: 15px 0;
    margin-top: 50px;
    position: relative;
    z-index: 10;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-left { display: flex; align-items: center; gap: 20px; }
.footer-logo { font-family: var(--font-mono); font-size: 18px; font-weight: 700; color: #fff; }

.footer-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent-green);
    background: rgba(0, 255, 102, 0.05);
    padding: 4px 10px;
    border-radius: 12px;
    border: 1px solid rgba(0, 255, 102, 0.15);
}

.status-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
}

.footer-center p {
    color: #64748b;
    font-size: 12px;
    font-family: var(--font-mono);
}

.footer-right { display: flex; align-items: center; gap: 10px; }

.social-btn {
    width: 34px;
    height: 34px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 255, 102, 0.2);
    color: #cbd5e1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-btn:hover {
    color: var(--accent-green);
    border-color: var(--accent-green);
    background: rgba(0, 255, 102, 0.1);
    box-shadow: 0 0 10px var(--accent-glow);
    transform: translateY(-2px);
}

/* ==========================================================================
   9. BİRLEŞTİRİLMİŞ MOBİL UYUM (RESPONSIVE)
   ========================================================================== */
@media (max-width: 768px) {
    .navbar {
        width: 95%;
        top: 10px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background: var(--navbar-bg);
        border: 1px solid var(--border-color);
        border-radius: 15px;
        flex-direction: column;
        padding: 15px;
        gap: 12px;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-title {
        font-size: 28px;
    }

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