/* ========================================================= */
/* 1. GENEL SIFIRLAMA, TEMEL AYARLAR VE YENİ RENK PALETİ */
/* ========================================================= */
:root {
    /* Yeni Renk Paleti */
    --color-matte-black: #1a1a1a; /* Mat Siyah */
    --color-dark-gray: #222222;   /* Koyu Gri (Kart Zemin) */
    --color-base-dark: #121212;   /* Ana Zemin Siyahı */
    --color-cyber-purple: #9e44ff; /* Cyber Mor */
    --color-cream-accent: #f9f7f4; /* Krem Rengi Vurgu (eski Altın yerine) */
    --color-light-text: #f0f0f0;  /* Açık Metin Rengi */
    --color-mid-text: #cccccc;    /* Orta Ton Metin Rengi */
}

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

body {
    margin: 0;
    font-family: 'Space Mono', monospace, sans-serif;
    background-color: var(--color-base-dark); /* Tamamen Karanlık Zemin */
    line-height: 1.6;
    color: var(--color-light-text); /* Açık Metin */
    overflow-x: hidden;
}

/* ========================================================= */
/* 2. DASHBOARD ANA DÜZENİ */
/* ========================================================= */
#app-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}

/* ========================================================= */
/* 3. SOL KENAR ÇUBUĞU (SIDEBAR) - MAT SİYAH */
/* ========================================================= */
#main-sidebar {
    width: 320px;
    min-width: 320px;
    background: linear-gradient(180deg, var(--color-matte-black) 0%, #0f0f0f 100%);
    color: var(--color-mid-text);
    padding: 30px 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.7);
    overflow-y: auto;
    transition: all 0.3s ease;
    position: relative;
}

#main-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg,
        transparent 0%,
        rgba(158, 68, 255, 0.05) 50%,
        transparent 100%);
    pointer-events: none;
    z-index: 0;
}

#main-sidebar > * {
    position: relative;
    z-index: 1;
}

#main-sidebar::-webkit-scrollbar {
    width: 6px;
}

#main-sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

#main-sidebar::-webkit-scrollbar-thumb {
    background: rgba(158, 68, 255, 0.5); /* Cyber Purple Scrollbar */
    border-radius: 10px;
}

#main-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(158, 68, 255, 0.7);
}

/* ========================================================= */
/* 4. SAYFA NAVİGASYON BUTONLARI (ÜST KISIM) */
/* ========================================================= */
#page-navigation-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
    padding-bottom: 25px;
    border-bottom: 2px solid rgba(45, 55, 72, 0.3);
}

.nav-page-btn {
    width: 100%;
    padding: 15px 20px;
    background: linear-gradient(135deg, var(--color-dark-gray) 0%, #333333 100%);
    color: var(--color-cyber-purple); /* Mor vurgu metni */
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.nav-page-btn i {
    font-size: 18px;
}

.nav-page-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.nav-page-btn:hover::before {
    width: 300px;
    height: 300px;
}

.nav-page-btn:hover {
    background: linear-gradient(135deg, var(--color-dark-gray) 0%, var(--color-matte-black) 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(158, 68, 255, 0.4);
    color: var(--color-cream-accent); /* Hover'da Krem renk */
}

.nav-page-btn:active {
    transform: translateY(-1px);
}

.nav-page-btn.active {
    /* Krem rengi - Active renk */
    background: linear-gradient(135deg, var(--color-cream-accent) 0%, #e0e0e0 100%);
    box-shadow: 0 8px 25px rgba(249, 247, 244, 0.5);
    color: var(--color-base-dark); /* Siyah metin */
}

/* ========================================================= */
/* 5. CYBER CARD STİLLERİ */
/* ========================================================= */
#interactive-card-container {
    position: relative;
    width: 220px;
    height: 294px;
    transition: all 200ms ease;
    margin: 30px auto;
    cursor: pointer;
    perspective: 800px; /* 3D efekt için */
}

#interactive-card-container:active {
    width: 210px;
    height: 280px;
}

#cyber-card {
    position: absolute;
    inset: 0;
    z-index: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 20px;
    transition: all 700ms ease;
    background: linear-gradient(45deg, var(--color-matte-black), var(--color-dark-gray));
    border: 2px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    box-shadow:
        0 0 20px rgba(0, 0, 0, 0.3),
        inset 0 0 20px rgba(0, 0, 0, 0.2),
        0 10px 40px rgba(158, 68, 255, 0.1); /* Mor Gölgelendirme */
}

.card-content {
    position: relative;
    width: 100%;
    height: 100%;
}

#prompt {
    bottom: 120px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    transition: all 300ms ease-in-out;
    position: absolute;
    text-align: center;
    color: var(--color-light-text);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    width: 80%;
    white-space: nowrap;
}

.title {
    opacity: 0;
    transition: all 300ms ease-in-out;
    position: absolute;
    font-size: 32px;
    font-weight: 800;
    letter-spacing: 4px;
    text-align: center;
    width: 100%;
    top: 50%;
    transform: translateY(-50%);
    /* Mor ve Krem Karışımı Başlık */
    background: linear-gradient(45deg, var(--color-cyber-purple), var(--color-cream-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 15px rgba(158, 68, 255, 0.3));
}

.subtitle {
    position: absolute;
    bottom: 30px;
    width: 100%;
    text-align: center;
    font-size: 11px;
    letter-spacing: 2px;
    transform: translateY(30px);
    color: rgba(255, 255, 255, 0.6);
    transition: all 300ms ease;
}

.highlight {
    color: var(--color-cream-accent); /* Krem Vurgu */
    margin-left: 5px;
    background: linear-gradient(90deg, var(--color-cyber-purple), #5c67ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
}

.glowing-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.glow-1, .glow-2, .glow-3 {
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    /* Mor Glow */
    background: radial-gradient(circle at center, rgba(158, 68, 255, 0.3) 0%, rgba(158, 68, 255, 0) 70%);
    filter: blur(15px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.glow-1 { top: -20px; left: -20px; }
.glow-2 { top: 50%; right: -30px; transform: translateY(-50%); }
.glow-3 { bottom: -20px; left: 30%; }

.card-particles span {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--color-cream-accent); /* Krem Parçacıklar */
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
    box-shadow: 0 0 10px var(--color-cream-accent);
}

@keyframes particleFloat {
    0% { transform: translate(0, 0); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translate(calc(var(--x, 0) * 30px), calc(var(--y, 0) * 30px)); opacity: 0; }
}

.card-particles span:nth-child(1) { --x: 1; --y: -1; top: 40%; left: 20%; }
.card-particles span:nth-child(2) { --x: -1; --y: -1; top: 60%; right: 20%; }
.card-particles span:nth-child(3) { --x: 0.5; --y: 1; top: 20%; left: 40%; }
.card-particles span:nth-child(4) { --x: -0.5; --y: 1; top: 80%; right: 40%; }
.card-particles span:nth-child(5) { --x: 1; --y: 0.5; top: 30%; left: 60%; }
.card-particles span:nth-child(6) { --x: -1; --y: 0.5; top: 70%; right: 60%; }

#cyber-card::before {
    content: "";
    /* Mor ve Krem Karışımı İç Işıltı */
    background: radial-gradient(circle at center, rgba(158, 68, 255, 0.15) 0%, rgba(249, 247, 244, 0.1) 50%, transparent 100%);
    filter: blur(20px);
    opacity: 0;
    width: 150%;
    height: 150%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
}

/* Tracker Grid */
.canvas {
    inset: 0;
    z-index: 200;
    position: absolute;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(5, 1fr);
    gap: 0px;
}

.tracker {
    position: relative;
    z-index: 200;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

/* Hover: Mouse takibi için Tracker hover kullanılıyor */
.tracker:hover ~ #cyber-card .title { opacity: 1; }
.tracker:hover ~ #cyber-card .subtitle { transform: translateY(0); }
.tracker:hover ~ #cyber-card .glowing-elements div { opacity: 1; }
.tracker:hover ~ #cyber-card .card-particles span { animation: particleFloat 2s infinite; }
.tracker:hover ~ #cyber-card #prompt { opacity: 0; }
.tracker:hover ~ #cyber-card::before { opacity: 1; }
.tracker:hover ~ #cyber-card {
    transition: 300ms;
    filter: brightness(1.2);
    box-shadow: 0 0 30px rgba(158, 68, 255, 0.3), inset 0 0 20px rgba(0, 0, 0, 0.2);
}

/* 3D Rotasyon Efektleri (Tracker'lar tarafından tetiklenir) */
.tr-1:hover ~ #cyber-card { transform: rotateX(10deg) rotateY(-5deg); }
.tr-2:hover ~ #cyber-card { transform: rotateX(10deg) rotateY(0deg); }
.tr-3:hover ~ #cyber-card { transform: rotateX(10deg) rotateY(5deg); }
.tr-4:hover ~ #cyber-card { transform: rotateX(0deg) rotateY(-5deg); }
.tr-5:hover ~ #cyber-card { transform: rotateX(0deg) rotateY(5deg); }
.tr-6:hover ~ #cyber-card { transform: rotateX(-10deg) rotateY(-5deg); }
.tr-7:hover ~ #cyber-card { transform: rotateX(-10deg) rotateY(0deg); }
.tr-8:hover ~ #cyber-card { transform: rotateX(-10deg) rotateY(5deg); }
/* Kalan 17 tracker için rotasyonları daha yumuşak ayarladım */
.tr-9:hover ~ #cyber-card { transform: rotateX(5deg) rotateY(-8deg); }
.tr-10:hover ~ #cyber-card { transform: rotateX(5deg) rotateY(8deg); }
.tr-11:hover ~ #cyber-card { transform: rotateX(-5deg) rotateY(-8deg); }
.tr-12:hover ~ #cyber-card { transform: rotateX(-5deg) rotateY(8deg); }
.tr-13:hover ~ #cyber-card { transform: rotateX(0deg) rotateY(-2deg); }
.tr-14:hover ~ #cyber-card { transform: rotateX(0deg) rotateY(2deg); }
.tr-15:hover ~ #cyber-card { transform: rotateX(-2deg) rotateY(0deg); }
.tr-16:hover ~ #cyber-card { transform: rotateX(2deg) rotateY(0deg); }
.tr-17:hover ~ #cyber-card { transform: rotateX(8deg) rotateY(-2deg); }
.tr-18:hover ~ #cyber-card { transform: rotateX(8deg) rotateY(2deg); }
.tr-19:hover ~ #cyber-card { transform: rotateX(-8deg) rotateY(-2deg); }
.tr-20:hover ~ #cyber-card { transform: rotateX(-8deg) rotateY(2deg); }
.tr-21:hover ~ #cyber-card { transform: rotateX(15deg) rotateY(0deg); }
.tr-22:hover ~ #cyber-card { transform: rotateX(-15deg) rotateY(0deg); }
    .tr-23:hover ~ #cyber-card { transform: rotateX(0deg) rotateY(-15deg); }
.tr-24:hover ~ #cyber-card { transform: rotateX(0deg) rotateY(15deg); }
.tr-25:hover ~ #cyber-card { transform: rotateX(0deg) rotateY(0deg); }


.cyber-lines span {
    position: absolute;
    /* Mor Çizgiler */
    background: linear-gradient(90deg, transparent, rgba(158, 68, 255, 0.3), transparent);
}

.cyber-lines span:nth-child(1) { top: 20%; left: 0; width: 100%; height: 1px; animation: lineGrow 3s linear infinite; }
.cyber-lines span:nth-child(2) { top: 40%; right: 0; width: 100%; height: 1px; animation: lineGrow 3s linear infinite 1s; }
.cyber-lines span:nth-child(3) { top: 60%; left: 0; width: 100%; height: 1px; animation: lineGrow 3s linear infinite 2s; }
.cyber-lines span:nth-child(4) { top: 80%; right: 0; width: 100%; height: 1px; animation: lineGrow 3s linear infinite 1.5s; }

.corner-elements span {
    position: absolute;
    width: 15px;
    height: 15px;
    border: 2px solid rgba(158, 68, 255, 0.3); /* Mor Köşe Çizgileri */
    transition: all 0.3s ease;
}

.corner-elements span:nth-child(1) { top: 10px; left: 10px; border-right: 0; border-bottom: 0; }
.corner-elements span:nth-child(2) { top: 10px; right: 10px; border-left: 0; border-bottom: 0; }
.corner-elements span:nth-child(3) { bottom: 10px; left: 10px; border-right: 0; border-top: 0; }
.corner-elements span:nth-child(4) { bottom: 10px; right: 10px; border-left: 0; border-top: 0; }

.scan-line {
    position: absolute;
    inset: 0;
    /* Mor/Gri Tonlarda Tarama Çizgisi */
    background: linear-gradient(to bottom, transparent, rgba(158, 68, 255, 0.15), transparent);
    transform: translateY(-100%);
    animation: scanMove 2s linear infinite;
}

.card-glare {
    position: absolute;
    inset: 0;
    background: linear-gradient(125deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.05) 45%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.05) 55%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity 300ms;
    pointer-events: none;
}

@keyframes lineGrow {
    0% { transform: scaleX(0); opacity: 0; }
    50% { transform: scaleX(1); opacity: 1; }
    100% { transform: scaleX(0); opacity: 0; }
}

@keyframes scanMove {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

.tracker:hover ~ #cyber-card .card-glare { opacity: 1; }
.tracker:hover ~ #cyber-card .corner-elements span {
    border-color: rgba(158, 68, 255, 0.8);
    box-shadow: 0 0 15px rgba(158, 68, 255, 0.6);
}

/* ========================================================= */
/* 6. ANA İÇERİK ALANI (SAĞ TARAF) - KARANLIK ZEMİN */
/* ========================================================= */
#page-content-wrapper {
    flex-grow: 1;
    padding: 40px;
    overflow-y: auto;
    background: linear-gradient(135deg, #121212 0%, var(--color-matte-black) 100%);
    position: relative;
}

#page-content-wrapper::before {
    content: '';
    position: fixed;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(158, 68, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

#page-content-wrapper > * {
    position: relative;
    z-index: 1;
}

.page-section {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.page-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-header {
    padding-bottom: 25px;
    margin-bottom: 35px;
    border-bottom: 2px solid transparent;
    /* Krem ve Mor alt çizgi */
    background: linear-gradient(90deg, var(--color-cream-accent) 0%, var(--color-cyber-purple) 100%) left bottom no-repeat;
    background-size: 100% 2px;
}

.page-header h1 {
    margin: 0;
    font-size: 2.5em;
    font-weight: 700;
    /* Açık Metin ve Mor metin gradyanı */
    background: linear-gradient(135deg, var(--color-light-text) 0%, var(--color-cyber-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.content-card {
    background: var(--color-dark-gray);
    padding: 35px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    margin-bottom: 25px;
    transition: all 0.3s ease;
    border: 1px solid rgba(158, 68, 255, 0.15); /* Mor çerçeve */
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(158, 68, 255, 0.4); /* Mor gölge */
    border-color: rgba(158, 68, 255, 0.5);
}

.content-card h2 {
    /* Başlık rengi olarak Krem vurgu */
    color: var(--color-cream-accent);
    border-left: 5px solid var(--color-cyber-purple); /* Mor dikey çizgi */
    padding-left: 15px;
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.8em;
    font-weight: 600;
}

.content-card p {
    color: var(--color-mid-text); /* Açık Gri metin */
    font-size: 1.05em;
    line-height: 1.8;
}

/* ========================================================= */
/* 7. CONTACT PAGE - LINKTREE STYLE - KARANLIK ARKA PLAN */
/* ========================================================= */
.social-links-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 600px;
    margin: 0 auto;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 20px 30px;
    background: linear-gradient(135deg, #2a2a2a 0%, #333333 100%);
    border: 2px solid rgba(158, 68, 255, 0.2);
    border-radius: 15px;
    text-decoration: none;
    color: var(--color-light-text); /* Açık Metin */
    font-weight: 600;
    font-size: 1.1em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    /* Mor Işıltı */
    background: linear-gradient(90deg, transparent, rgba(158, 68, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.social-link:hover::before {
    left: 100%;
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(158, 68, 255, 0.4); /* Mor gölge */
    border-color: rgba(158, 68, 255, 0.8);
}

/* Özel Sosyal Medya Renkleri - Hover'ı Mor/Krem temasına uyarladım */
.social-link.linkedin:hover {
    background: linear-gradient(135deg, #0077b5 0%, #005582 100%);
    color: var(--color-cream-accent); /* Krem rengi */
    border-color: #0077b5;
}

.social-link.github:hover {
    background: linear-gradient(135deg, var(--color-matte-black) 0%, #333 100%);
    color: var(--color-cream-accent); /* Krem rengi */
    border-color: var(--color-matte-black);
}

.social-link.email:hover {
    background: linear-gradient(135deg, #ea4335 0%, #c5221f 100%);
    color: var(--color-cream-accent); /* Krem rengi */
    border-color: #ea4335;
}

/* ========================================================= */
/* 8. RESPONSİVE TASARIM */
/* ========================================================= */
@media (max-width: 768px) {
    #app-layout {
        flex-direction: column;
    }

    #main-sidebar {
        width: 100%;
        min-width: 100%;
        height: auto;
        padding: 20px 15px;
    }

    #page-navigation-buttons {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-page-btn {
        width: 48%;
        padding: 12px 15px;
        font-size: 14px;
    }

    #page-content-wrapper {
        padding: 20px;
    }

    .page-header h1 {
        font-size: 1.8em;
    }

    #interactive-card-container {
        width: 180px;
        height: 240px;
        margin: 20px auto;
    }

    .social-links-container {
        padding: 0 10px;
    }
    @media (hover: none) and (pointer: coarse) {
    /* Dokunmatik ekranlarda ve parmak gibi geniş işaretçilerde çalışır */

    .nav-page-btn:hover::before,
    .nav-page-btn:hover {
        /* Mobil cihazlarda hover efektlerini kaldır */
        background: linear-gradient(135deg, var(--color-dark-gray) 0%, #333333 100%) !important;
        transform: none !important;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3) !important;
        color: var(--color-cyber-purple) !important;
    }

    /* 3D kart için tüm :hover kurallarını devre dışı bırakıyoruz */
    .canvas {
        /* Tracker'ları mobil cihazlarda görünmez yapar */
        display: none; 
    }

    #interactive-card-container {
        /* Mobil cihazlarda 3D kartın başlangıç transformunu ayarla */
        /* Etkileşimsiz hale getirilse bile görsel olarak çekici kalır */
        transform: perspective(1000px) scale(1);
    }

    #cyber-card {
        /* Mobil cihazlarda daha yumuşak bir görünüm */
        transform: none !important; /* JS ile verilen 3D transformu sıfırla */
        transition: all 0.5s ease;
    }

    /* Mobil cihazda kart içeriğini göster */
    #interactive-card-container #prompt { 
        display: none !important; /* HOVER ME yazısını gizle */
    }
    #cyber-card .title { 
        opacity: 1 !important; /* Başlığı her zaman göster */
    }
    #cyber-card .subtitle { 
        transform: translateY(0) !important; /* Alt başlığı her zaman göster */
    }
    #cyber-card .glowing-elements div { 
        opacity: 0.8 !important; /* Parçacık ve ışıltıyı daha az göster */
    }

    /* Responsive tasarımdaki kart boyutunu koru */
    #interactive-card-container {
        width: 180px;
        height: 240px;
        margin: 20px auto;
    }
}
}