:root {
    --accent1: #7b2ff7;
    --accent2: #22d3ee;
    --bg: #0b0f19;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow-x: hidden; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
}

/* Global link reset */
a { text-decoration: none; color: inherit; }

/* ── BREADCRUMB ── */
.breadcrumb {
    font-size: .8rem;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: .4rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}
.breadcrumb a { color: var(--accent2); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--muted); opacity: .5; }

/* ── RELATED LINKS ── */
.related-section { margin: 2.5rem 0; }
.related-section h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text);
    font-family: 'Syne', sans-serif;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: .7rem;
}
.related-link {
    background: rgba(255,255,255,.03);
    border: 1px solid rgba(123,47,247,.12);
    border-radius: 10px;
    padding: .85rem 1rem;
    color: var(--text);
    text-decoration: none;
    font-size: .85rem;
    display: flex;
    align-items: center;
    gap: .55rem;
    transition: all .25s;
}
.related-link:hover { border-color: var(--accent2); color: var(--accent2); background: rgba(123,47,247,.08); }
.related-link i { color: var(--accent2); font-size: .8rem; flex-shrink: 0; }

/* ── FOOTER ── */
footer {
    text-align: center;
    padding: 4rem 0 2rem;
    color: var(--muted);
    font-size: .88rem;
    border-top: 1px solid rgba(123,47,247,.1);
    margin-top: 3rem;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    flex-wrap: wrap;
    margin-bottom: 1.2rem;
}
.footer-links a { color: var(--muted); font-size: .82rem; transition: color .2s; }
.footer-links a:hover { color: var(--accent2); }
.contact-link { color: var(--accent2); }
.contact-link:hover { opacity: .8; text-decoration: underline; }

#bgCanvas {
    position: fixed;
    inset: 0;
    z-index: -1;
}

/* ── HEADER ───────────────── */
header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: rgba(8,12,20,.95);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(123,47,247,0.2);
    padding: .75rem 4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: .5rem;
    width: 100%;
    overflow: visible;
}

.brand {
    display: flex;
    flex-direction: column;
    gap: .1rem;
    text-decoration: none;
    flex-shrink: 0;
}

.brand strong {
    font-family: 'Syne', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(90deg, var(--accent1), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -.5px;
    white-space: nowrap;
}

.brand span {
    font-size: .72rem;
    color: var(--muted);
    letter-spacing: .5px;
    text-transform: uppercase;
    display: block;
}

/* Masaüstü Menü */
.main-nav.desktop-nav {
    display: flex;
    gap: .2rem;
    flex-wrap: nowrap;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
    min-width: 0;
    overflow: visible;
}

.nav-item {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    font-size: .8rem;
    display: flex;
    align-items: center;
    gap: .35rem;
    padding: .45rem .75rem;
    border-radius: 8px;
    transition: all .25s;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-item i { font-size: .75rem; }

.nav-cta {
    background: linear-gradient(135deg, var(--accent1), var(--accent2));
    color: #fff !important;
    padding: .45rem 1rem;
    border-radius: 20px;
    font-weight: 600;
}
.nav-cta:hover { opacity: .85; transform: translateY(-1px); }

.nav-item:hover,
.nav-item.active {
    background: rgba(123,47,247,0.15);
    color: var(--accent2);
}

/* Hamburger ikon (3 çizgi) */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: .5rem;
    z-index: 10001;
    position: relative;
    flex-shrink: 0;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--accent2);
    border-radius: 2px;
    transition: all .3s ease;
    transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.4);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Soldan açılan sidebar menü */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px; /* menü genişliği */
    max-width: 70%;
    height: 100vh;
    background: rgba(11,15,25,0.98);
    backdrop-filter: blur(10px);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    padding-top: 5rem;
    gap: 1.8rem;
    transform: translateX(-100%);
    transition: transform 0.35s ease;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu .nav-item {
    color: white;
    text-decoration: none;
    font-size: 1.6rem;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    transition: background 0.3s;
}

.mobile-menu .nav-item:hover {
    background: rgba(34,211,238,0.2);
}

/* Container & Sections */
.container { max-width: 1100px; margin: 0 auto; padding: 2rem 5%; }

.hero { text-align: center; padding: 8rem 1rem 5rem; }

.hero h1 {
    font-size: clamp(2.5rem, 7vw, 4rem);
    background: linear-gradient(90deg, var(--accent1), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.3rem;
}

.hero p {
    max-width: 680px;
    margin: 0 auto 2.5rem;
    color: var(--muted);
    font-size: 1.15rem;
}

.contact-buttons {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    flex-wrap: wrap;
}

.contact-btn {
    padding: 0.9rem 1.8rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.3s;
    color: white;
}

.contact-btn:hover { transform: translateY(-3px); }

.whatsapp-btn { background: #25D366; }

.card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(123,47,247,0.12);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    backdrop-filter: blur(6px);
}

h2 {
    text-align: center;
    font-size: 2.3rem;
    margin: 5rem 0 2.5rem;
    background: linear-gradient(90deg, var(--accent1), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.8rem;
    margin-top: 2rem;
}

.service-card {
    background: rgba(17,24,39,0.4);
    border-radius: var(--radius);
    padding: 2.2rem 1.6rem;
    text-align: center;
    border: 1px solid rgba(34,211,238,0.15);
    transition: all 0.35s;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent2);
    box-shadow: 0 0 30px rgba(34,211,238,0.25);
}

.service-card i { color: var(--accent2); margin-bottom: 1.2rem; }
.service-card h3 { margin: 1rem 0 0.8rem; }

footer {
    text-align: center;
    padding: 5rem 0 2rem;
    color: var(--muted);
    font-size: 0.95rem;
}

/* Responsive - mobil */
@media (max-width: 900px) {
    .desktop-nav { display: none !important; }
    .hamburger { display: flex !important; }
}
@media (max-width: 1100px) {
    .nav-item { padding: .4rem .6rem; font-size: .75rem; }
}
/* Sidebar yazı ve ikon düzeni */
.mobile-menu a {
    display: flex;
    align-items: center;
    gap: 1rem; /* ikon ve yazı arasındaki boşluk */
    font-size: 1.5rem;
    color: var(--text);
    text-decoration: none;
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius);
    transition: background 0.3s, color 0.3s;
}

.mobile-menu a i {
    color: var(--accent2);
    font-size: 1.4rem;
}

/* Hover efekti */
.mobile-menu a:hover {
    background: rgba(123,47,247,0.2);
    color: var(--accent2);
}

/* Menü arka plan ile uyumlu */
.mobile-menu {
    background: rgba(11,15,25,0.95); /* hafif transparan koyu arka plan */
}

/* Overlay */
.menu-overlay {
    background: rgba(0,0,0,0.35); /* hafif koyu overlay */
}
/* ── DROPDOWN NAV ── */
.nav-has-dropdown { position: relative; display: inline-flex; align-items: center; }
.nav-sub {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 210px;
    background: rgba(8,12,20,.97);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(123,47,247,.3);
    border-radius: 14px;
    padding: .5rem;
    z-index: 100000;
    box-shadow: 0 20px 50px rgba(0,0,0,.8);
}
.nav-has-dropdown:hover .nav-sub { display: block; pointer-events: auto; }
.nav-sub a {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .55rem .85rem;
    border-radius: 9px;
    color: #e5e7eb;
    text-decoration: none;
    font-size: .81rem;
    font-weight: 500;
    white-space: nowrap;
    transition: background .15s, color .15s;
}
.nav-sub a i { color: #22d3ee; font-size: .77rem; width: 13px; text-align: center; }
.nav-sub a:hover { background: rgba(123,47,247,.2); color: #22d3ee; }
.nav-drop-arrow { font-size: .58rem; margin-left: .2rem; transition: transform .2s; display: inline-block; }
.nav-has-dropdown:hover .nav-drop-arrow { transform: rotate(180deg); }

/* ── MOBILE MENU (grup sayfası uyumlu) ── */
.mobile-menu-header {
    padding: 1.2rem 1.5rem 1rem;
    border-bottom: 1px solid rgba(123,47,247,.15);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}
.mobile-close {
    background: none;
    border: none;
    color: var(--muted);
    font-size: 1.4rem;
    cursor: pointer;
    padding: .3rem;
    border-radius: 8px;
    transition: all .2s;
}
.mobile-close:hover { color: var(--accent2); background: rgba(123,47,247,.15); }
.mobile-menu-nav { padding: .5rem 0; flex: 1; overflow-y: auto; }
.mobile-menu-nav a {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text);
    text-decoration: none;
    padding: .9rem 1.5rem;
    font-size: .95rem;
    font-weight: 500;
    transition: all .25s;
    border-left: 3px solid transparent;
}
.mobile-menu-nav a .nav-icon {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: rgba(123,47,247,.12);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.mobile-menu-nav a .nav-icon i { color: var(--accent2); font-size: .9rem; }
.mobile-menu-nav a .nav-label { display: flex; flex-direction: column; gap: .1rem; }
.mobile-menu-nav a .nav-label span { font-size: .72rem; color: var(--muted); font-weight: 400; }
.mobile-menu-nav a:hover { background: rgba(123,47,247,.08); border-left-color: var(--accent2); color: var(--accent2); }
.mobile-menu-footer { padding: 1.2rem 1.5rem; border-top: 1px solid rgba(123,47,247,.15); flex-shrink: 0; }

/* mobile-menu override (sağdan açılsın) */
.mobile-menu {
    left: auto;
    right: 0;
    transform: translateX(100%);
    width: 300px;
    max-width: 85%;
    background: linear-gradient(160deg, #0d1120 0%, #0f0a1e 100%);
    border-left: 1px solid rgba(123,47,247,.2);
    padding-top: 0;
    gap: 0;
}
.mobile-menu.active { transform: translateX(0); }

/* ── WHATSAPP BTN ── */
.whatsapp-btn { background: #25D366; color: #fff !important; }
.whatsapp-btn:hover { box-shadow: 0 8px 25px rgba(37,211,102,.3); }
.btn-outline { background: transparent; border: 1px solid rgba(123,47,247,.4); color: var(--accent2) !important; }
.btn-outline:hover { background: rgba(123,47,247,.15); }