/* ============================================================
   RETRO TERMİNAL / DEFTER TEMASI — koyu sürüm
   Baştan sona monospace · büyük harf etiketler · keskin köşeler
   Panellerde kesik çizgili iç çerçeve · kapalı çelik mavisi vurgu
   Degrade yok, parlama yok, blur yok.
   ============================================================ */

:root {
    /* Zeminler */
    --zemin:        #15140f;
    --zemin-panel:  #1c1a14;
    --zemin-koyu:   #100f0b;
    --zemin-satir:  #201e17;

    /* Mürekkep (metin) */
    --murekkep:       #e8e0cd;
    --murekkep-orta:  #a49b85;
    --murekkep-silik: #6b6455;

    /* Vurgu ve durum renkleri */
    --vurgu:        #6688bd;
    --vurgu-parlak: #8aa8d6;
    --vurgu-koyu:   #2f4a78;
    --yesil:          #8aa07a;
    --sari:           #c9a54a;

    /* Çizgiler */
    --cizgi:       rgba(232, 224, 205, 0.14);
    --cizgi-guclu: rgba(232, 224, 205, 0.30);

    /* Tek yazı ailesi: terminal disiplini */
    --yazi: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, 'Courier New', monospace;

    --kose: 3px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--yazi);
}

html {
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    text-size-adjust: 100%;
    font-size: 100%;
}

body, html {
    min-height: 100vh;
    background-color: var(--zemin);
    color: var(--murekkep);
    overflow-x: hidden;
}

/* --- Kaydırma çubuğu: köşesiz, mekanik --- */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--vurgu) var(--zemin-koyu);
}
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--zemin-koyu); }
::-webkit-scrollbar-thumb {
    background: var(--vurgu);
    border: 2px solid var(--zemin-koyu);
    border-radius: 0;
}
::-webkit-scrollbar-thumb:hover { background: var(--vurgu-parlak); }
::-webkit-scrollbar-button { display: none; }

::selection { background: var(--vurgu-koyu); color: var(--murekkep); }

/* ============================================================
   ZEMİN — kağıt dokusu + kenar kararması
   ============================================================ */
.background-wrapper {
    width: 100%;
    min-height: 100vh;
    background-color: var(--zemin);
    position: relative;
    overflow: hidden;
    /* Sayfanın üst kenarındaki ince kırmızı şerit */
    border-top: 3px solid var(--vurgu);
}

/* İnce lif dokusu ve nokta ızgarası — çok hafif */
.background-wrapper::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        repeating-linear-gradient(0deg, rgba(232,224,205,.022) 0 1px, transparent 1px 3px),
        radial-gradient(rgba(232,224,205,.05) 1px, transparent 1px);
    background-size: auto, 22px 22px;
}

/* Kenarlara doğru kararma */
.background-wrapper::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: radial-gradient(115% 90% at 50% 40%, transparent 45%, rgba(0,0,0,.55) 100%);
}

/* İçerik dokunun üstünde kalsın */
.top-header {
    position: relative;
    z-index: 100;
}
.hero-text,
.content-container {
    z-index: 1;
}

/* ============================================================
   ÜST MENÜ
   ============================================================ */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: var(--zemin-koyu);
    /* Defter satırı gibi çift kural: düz çizgi + altında kesik çizgi */
    border-bottom: 1px solid var(--cizgi-guclu);
    box-shadow: 0 2px 0 -1px var(--zemin-koyu), 0 3px 0 -1px var(--cizgi);
}

.nav-menu {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* Basılı form kutucukları: keskin köşe, iç kesik çizgi */
.nav-menu a,
.dropbtn {
    position: relative;
    color: var(--murekkep);
    text-decoration: none;
    font-family: var(--yazi);
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--cizgi-guclu);
    border-radius: 2px;
    transition: color .18s, border-color .18s, background .18s;
}

/* Panellerin imzası: içeride ikinci, kesik çerçeve */
.nav-menu a::before,
.dropbtn::before {
    content: "";
    position: absolute;
    inset: 3px;
    border: 1px dashed var(--cizgi);
    pointer-events: none;
}

.nav-menu a:hover,
.dropbtn:hover {
    color: var(--vurgu-parlak);
    border-color: var(--vurgu);
    background: rgba(102, 136, 189, 0.10);
}

/* --- Açılır menü --- */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropbtn {
    cursor: pointer;
    outline: none;
}

.dropbtn::after {
    content: '\25BE';
    font-size: 0.62rem;
    margin-left: 8px;
    vertical-align: middle;
    color: var(--vurgu);
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--zemin-panel);
    min-width: 250px;
    border: 1px solid var(--cizgi-guclu);
    border-radius: var(--kose);
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.5);
    z-index: 1000;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 12px;
    padding: 6px;
    overflow: hidden;
}

/* Fare menüye giderken boşluğa düşmesin */
.dropdown::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 12px;
}

.dropdown-content a {
    position: relative;
    color: var(--murekkep-orta);
    padding: 10px 14px;
    text-decoration: none;
    display: block;
    font-size: 0.76rem;
    font-weight: 400;
    letter-spacing: .8px;
    text-transform: uppercase;
    border: none;
    border-radius: 0;
    background: transparent;
    transition: color .18s, background .18s, padding-left .18s;
}
/* Menü satırlarında iç çerçeve olmasın */
.dropdown-content a::before { content: none; }

.dropdown-content a i {
    color: var(--murekkep-silik);
    width: 18px;
    margin-right: 8px;
    transition: color .18s;
}

.dropdown-content a:last-child { border-bottom: none; }

.dropdown-content a:hover {
    background-color: var(--vurgu-koyu);
    color: var(--murekkep);
    padding-left: 18px;
}
.dropdown-content a:hover i { color: #14130f; }

.dropdown:hover .dropdown-content { display: block; }

/* --- Sosyal ikonlar --- */
.social-icons {
    display: flex;
    gap: 18px;
    align-items: center;
}

.social-icons a {
    color: var(--murekkep-orta);
    font-size: 1.05rem;
    transition: color .18s, transform .18s;
}

.social-icons a:hover {
    color: var(--vurgu-parlak);
    transform: translateY(-2px);
}

/* Medium'un "M" harfi: hizalama 'top' ile — 'transform' hover'ı ezmesin */
.social-icons a.medium-link {
    font-family: var(--yazi);
    font-weight: 700;
    font-size: 1.05rem;
    line-height: 1;
    text-decoration: none;
    display: inline-block;
    position: relative;
    top: 1px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--murekkep);
    width: 90%;
}

.hero-text h1 {
    font-size: clamp(1.7rem, 5.5vw, 3.1rem);
    font-weight: 700;
    letter-spacing: clamp(2px, 1.1vw, 8px);
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: 14px;
}

.hero-text p {
    font-size: clamp(0.78rem, 2.6vw, 0.95rem);
    color: var(--vurgu);
    letter-spacing: 1.4px;
}

/* ============================================================
   İLETİŞİM
   ============================================================ */
.contact-title {
    font-size: clamp(1.5rem, 5vw, 2.6rem) !important;
    margin-bottom: 26px !important;
}

.contact-details p {
    font-size: 0.85rem;
    margin-bottom: 14px;
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--murekkep-silik);
}

.contact-data {
    color: var(--vurgu);
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: none;
}

/* ============================================================
   İÇERİK KABI
   ============================================================ */
.content-container {
    position: absolute;
    top: 55%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 92%;
    max-width: 940px;
    background: transparent;
    border: none;
    padding: 34px 38px;
    color: var(--murekkep);
    max-height: 80vh;
    overflow-y: auto;
}

/* Bölüm başlığı: büyük harf, altında çift kural */
.page-title {
    position: relative;
    font-size: clamp(1.15rem, 4vw, 1.75rem);
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    letter-spacing: clamp(2px, 0.9vw, 6px);
    text-transform: uppercase;
    color: var(--murekkep);
    padding-bottom: 14px;
    border-bottom: 1px solid var(--cizgi-guclu);
}

.page-title::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 0;
    border-bottom: 1px dashed var(--cizgi);
}

/* ============================================================
   HAKKIMDA
   ============================================================ */
.about-text p {
    font-size: 0.84rem;
    line-height: 1.95;
    color: var(--murekkep-orta);
    margin-bottom: 15px;
    text-align: justify;
    letter-spacing: .2px;
}

.about-details {
    display: flex;
    gap: 22px;
    margin-top: 30px;
}

/* Panel: keskin köşe, iç kesik çerçeve, sert gölge */
.detail-box {
    position: relative;
    flex: 1;
    background: var(--zemin-panel);
    padding: 22px;
    border-radius: var(--kose);
    border: 1px solid var(--cizgi-guclu);
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
}

.detail-box::before {
    content: "";
    position: absolute;
    inset: 5px;
    border: 1px dashed var(--cizgi);
    pointer-events: none;
}

.detail-box h3 {
    color: var(--vurgu);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 2.2px;
    text-transform: uppercase;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--cizgi);
    display: flex;
    align-items: center;
    gap: 9px;
}
.detail-box h3 i { font-size: 0.9rem; }

.detail-box ul { list-style: none; }

.detail-box ul li {
    margin-bottom: 13px;
    font-size: 0.76rem;
    color: var(--murekkep-orta);
    border-left: 2px solid var(--vurgu);
    padding-left: 12px;
    border-radius: 0;
    line-height: 1.7;
}

.detail-box ul li strong {
    color: var(--murekkep);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: .4px;
}

/* Etiketler: basılı form kutucukları */
.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.skills-tags span {
    background: transparent;
    color: var(--murekkep-orta);
    padding: 5px 11px;
    border-radius: 2px;
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    border: 1px solid var(--cizgi-guclu);
}

/* ============================================================
   PROJELER
   ============================================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 20px;
    margin-top: 26px;
}

.project-card {
    position: relative;
    background: var(--zemin-panel);
    border: 1px solid var(--cizgi-guclu);
    border-radius: var(--kose);
    padding: 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.project-card::before {
    content: "";
    position: absolute;
    inset: 5px;
    border: 1px dashed var(--cizgi);
    pointer-events: none;
}

/* Basılmış gibi: kart yer değiştirir, gölge küçülür */
.project-card:hover {
    transform: translate(2px, 2px);
    border-color: var(--vurgu);
    box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.45);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--cizgi);
}

.folder-icon {
    font-size: 1.3rem;
    color: var(--vurgu);
}

.github-link {
    font-size: 1.05rem;
    color: var(--murekkep-silik);
    transition: color .18s;
}

.github-link:hover { color: var(--vurgu-parlak); }

.project-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--murekkep);
    margin-bottom: 12px;
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.project-desc {
    font-size: 0.75rem;
    color: var(--murekkep-orta);
    line-height: 1.8;
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-meta {
    display: flex;
    align-items: center;
    padding-top: 12px;
    border-top: 1px dashed var(--cizgi);
}

.language-tag {
    font-size: 0.66rem;
    color: var(--murekkep-silik);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Efsane kutucuğu: daire değil kare */
.lang-dot {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 0;
}

.html-color { background-color: #e34c26; }

/* ============================================================
   MOBİL
   ============================================================ */
@media (max-width: 768px) {
    body, html { overflow-y: auto; }

    /* Mobilde ağır dokuları kapat: performans ve tek tip zemin */
    .background-wrapper::before,
    .background-wrapper::after { display: none; }

    .top-header {
        flex-direction: column;
        padding: 14px 12px;
        gap: 12px;
    }

    .nav-menu {
        gap: 6px;
        flex-wrap: wrap;
        justify-content: center;
    }

    /* Dokunma hedefi en az ~40px olsun (parmakla rahat basılsın) */
    .nav-menu a,
    .dropbtn {
        font-size: 0.66rem;
        padding: 12px 13px;
        letter-spacing: 1px;
    }
    /* Küçük kutucukta çift çerçeve kalabalık yapıyor */
    .nav-menu a::before,
    .dropbtn::before { inset: 2px; }

    .dropdown-content {
        left: 50%;
        transform: translateX(-50%);
        min-width: 220px;
    }
    .dropdown-content a { font-size: 0.7rem; padding: 13px 13px; }

    .content-container {
        position: relative;
        top: 0;
        left: 0;
        transform: none;
        margin: 16px auto;
        padding: 16px;
        max-height: none;
        width: 94%;
    }

    .about-details {
        flex-direction: column;
        gap: 16px;
    }

    .detail-box { box-shadow: 3px 3px 0 rgba(0,0,0,.45); }

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

    .project-card { box-shadow: 3px 3px 0 rgba(0,0,0,.45); }

    .about-text p { font-size: 0.8rem; line-height: 1.85; text-align: left; }

    .contact-details p { font-size: 0.76rem; }
}