/* ==========================================================================
   Demircioğlu Demir Çelik — Premium Dark SaaS UI Layer
   Aceternity / Vercel / Apple inspired. Vanilla CSS/JS. Loads after style.css.
   Glassmorphism · gradient borders · neon blue/violet glow · XL radii · big type
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
    --neon-1: var(--color-secondary);          /* neon blue   */
    --neon-2: var(--color-accent);             /* neon violet */
    --r-xl: 24px;
    --glass-blur: 16px;
}

/* ---------- Typography & rhythm ---------- */
body { letter-spacing: -0.012em; }
h1, h2, h3, h4 { letter-spacing: -0.025em; }
.section { padding: 84px 0; position: relative; }
.section-head { max-width: 780px; margin: 0 auto 46px; }
.section-title { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 800; }
.section-subtitle { font-size: 1.08rem; line-height: 1.75; }

/* Eyebrow tag — glassy pill with glowing dot */
.section-tag {
    display: inline-flex; align-items: center; gap: 9px;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.1);
    color: var(--text); padding: 8px 18px 8px 14px; font-size: .76rem;
    backdrop-filter: blur(8px); border-radius: 100px;
}
.section-tag::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--neon-2); box-shadow: 0 0 12px var(--neon-2), 0 0 4px var(--neon-2);
    animation: tagPulse 2s ease-in-out infinite;
}
@keyframes tagPulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* ---------- Glass + gradient-border card system ---------- */
.service-card, .post-card, .project-card, .timeline-card, .testimonial-card,
.contact-card, .widget, .stat-card, .form-card, .article, .accordion-item,
.about-visual-card, .comments-section, .author-box, .footer-cta {
    border: 1px solid transparent;
    background:
        linear-gradient(color-mix(in srgb, var(--surface) 78%, transparent), color-mix(in srgb, var(--surface) 78%, transparent)) padding-box,
        linear-gradient(135deg, color-mix(in srgb, var(--neon-1) 42%, transparent), color-mix(in srgb, var(--neon-2) 26%, transparent) 55%, rgba(255,255,255,.04)) border-box;
    border-radius: var(--r-xl);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    transition: transform .4s cubic-bezier(.2,.7,.3,1), box-shadow .4s, border-color .4s;
}
.service-card:hover, .post-card:hover, .timeline-card:hover, .testimonial-card:hover,
.contact-card:hover, .stat-card:hover, .project-card:hover {
    transform: translateY(-6px);
    box-shadow:
        0 24px 60px -24px rgba(0,0,0,.7),
        0 0 0 1px color-mix(in srgb, var(--neon-1) 34%, transparent),
        0 0 46px -14px color-mix(in srgb, var(--neon-1) 55%, transparent),
        0 0 60px -18px color-mix(in srgb, var(--neon-2) 40%, transparent);
}

/* Cursor spotlight glow */
.service-card, .timeline-card, .stat-card, .post-card, .contact-card, .testimonial-card,
.widget, .form-card { position: relative; overflow: hidden; }
.service-card::after, .timeline-card::after, .stat-card::after,
.post-card::after, .contact-card::after, .testimonial-card::after {
    content: ''; position: absolute; inset: 0; border-radius: inherit; z-index: 0;
    background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 50%),
                color-mix(in srgb, var(--neon-1) 18%, transparent), transparent 44%);
    opacity: 0; transition: opacity .4s ease; pointer-events: none;
}
.service-card:hover::after, .timeline-card:hover::after, .stat-card:hover::after,
.post-card:hover::after, .contact-card:hover::after, .testimonial-card:hover::after { opacity: 1; }
.service-card > *, .timeline-card > *, .stat-card > *,
.post-card > *, .contact-card > *, .testimonial-card > * { position: relative; z-index: 1; }

/* Service icon glow */
.service-icon { box-shadow: 0 12px 30px -6px color-mix(in srgb, var(--neon-1) 55%, transparent); border-radius: 16px; }
.service-card:hover .service-icon { transform: translateY(-3px) rotate(-4deg); }
.service-icon { transition: transform .45s cubic-bezier(.2,.7,.3,1); }

/* ---------- Buttons: gradient (blue→violet) + glow + shine ---------- */
.btn { position: relative; overflow: hidden; letter-spacing: .1px; border-radius: 12px; }
.btn-lg { border-radius: 14px; padding: 16px 36px; }
.btn-sm { border-radius: 10px; }
.btn-accent { background: var(--gradient); box-shadow: 0 10px 30px -8px color-mix(in srgb, var(--neon-1) 60%, transparent); }
.btn-accent:hover { box-shadow: 0 14px 40px -8px color-mix(in srgb, var(--neon-2) 65%, transparent); }
.btn-primary { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); color: #fff; backdrop-filter: blur(8px); }
.btn-primary:hover { background: var(--gradient); border-color: transparent; box-shadow: 0 12px 34px -8px color-mix(in srgb, var(--neon-1) 55%, transparent); transform: translateY(-2px); }
.btn-primary::after, .btn-secondary::after, .btn-accent::after {
    content: ''; position: absolute; top: 0; left: -130%; width: 55%; height: 100%; z-index: 1;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,.4), transparent);
    transform: skewX(-20deg); transition: left .6s ease;
}
.btn-primary:hover::after, .btn-secondary:hover::after, .btn-accent:hover::after { left: 140%; }
.btn-outline { border-color: rgba(255,255,255,.14); }
.btn-outline:hover { border-color: var(--neon-1); color: var(--neon-1); box-shadow: 0 0 24px -6px color-mix(in srgb, var(--neon-1) 50%, transparent); }

/* ---------- Hero: aurora + grid + big type ---------- */
.hero { background: #05060B; overflow: hidden; }
.hero::before {
    content: ''; position: absolute; inset: -20%; z-index: 0; pointer-events: none;
    background:
        radial-gradient(38% 44% at 18% 22%, color-mix(in srgb, var(--neon-1) 60%, transparent), transparent 60%),
        radial-gradient(34% 42% at 82% 12%, color-mix(in srgb, var(--neon-2) 55%, transparent), transparent 60%),
        radial-gradient(46% 56% at 72% 84%, color-mix(in srgb, var(--neon-1) 42%, transparent), transparent 60%),
        radial-gradient(40% 50% at 28% 88%, color-mix(in srgb, var(--neon-2) 34%, transparent), transparent 60%);
    filter: blur(40px) saturate(1.2);
    animation: aurora 20s ease-in-out infinite alternate;
}
.hero::after {
    content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
    background-size: 56px 56px;
    -webkit-mask-image: radial-gradient(ellipse 78% 68% at 50% 38%, #000 28%, transparent 76%);
    mask-image: radial-gradient(ellipse 78% 68% at 50% 38%, #000 28%, transparent 76%);
}
@keyframes aurora {
    0%   { transform: translate3d(0,0,0) scale(1); }
    50%  { transform: translate3d(3%,2%,0) scale(1.1); }
    100% { transform: translate3d(-3%,-2%,0) scale(1.05); }
}
.hero-slide { background-color: transparent; }
.hero-overlay { background: linear-gradient(to top, rgba(5,6,11,.82), rgba(5,6,11,.1)); }
.hero-content { z-index: 3; }
.hero-content h1 { font-size: clamp(2.4rem, 6.5vw, 4.6rem); letter-spacing: -0.035em; text-shadow: 0 4px 40px rgba(0,0,0,.5); }
.hero-content p { font-size: clamp(1.02rem, 2vw, 1.28rem); color: rgba(255,255,255,.82); }
.hero-badge { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16); backdrop-filter: blur(12px); border-radius: 100px; }
.hero-nav { z-index: 4; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.16); }
.hero-dots { z-index: 4; }

/* ---------- Stats: glass ---------- */
.stats-grid { border-radius: 28px; }
.stat-value { letter-spacing: -0.035em; }
.stat-icon { filter: drop-shadow(0 0 14px color-mix(in srgb, var(--neon-1) 60%, transparent)); }

/* ---------- Timeline ---------- */
.timeline-year { box-shadow: 0 8px 24px -6px color-mix(in srgb, var(--neon-1) 60%, transparent); }
.timeline-icon { box-shadow: inset 0 0 0 1px rgba(255,255,255,.06); }

/* ---------- Section ambient glows ---------- */
.services-section::before, .timeline-section::before, .blog-section::before, .map-cta-section::before {
    content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background:
        radial-gradient(40% 50% at 85% 0%, color-mix(in srgb, var(--neon-2) 12%, transparent), transparent 60%),
        radial-gradient(40% 50% at 10% 100%, color-mix(in srgb, var(--neon-1) 10%, transparent), transparent 60%);
}
.section > .container { position: relative; z-index: 1; }

/* ---------- About visual card ---------- */
.about-visual-card { background: linear-gradient(150deg, color-mix(in srgb, var(--neon-1) 30%, var(--surface)), color-mix(in srgb, var(--neon-2) 24%, var(--surface))) !important; box-shadow: 0 30px 70px -24px color-mix(in srgb, var(--neon-1) 55%, transparent); border-radius: 28px; }
.about-visual-card i { filter: drop-shadow(0 6px 20px rgba(0,0,0,.4)); }
/* About image (uploaded) — framed with gradient border + glow */
.about-visual-image { position: relative; border-radius: 28px; overflow: hidden; border: 1px solid transparent;
    background: linear-gradient(#0a0c14,#0a0c14) padding-box,
        linear-gradient(135deg, color-mix(in srgb, var(--neon-1) 45%, transparent), color-mix(in srgb, var(--neon-2) 28%, transparent)) border-box;
    box-shadow: 0 30px 70px -28px rgba(0,0,0,.7), 0 0 44px -18px color-mix(in srgb, var(--neon-1) 45%, transparent); }
.about-visual-image img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; display: block; }
.about-visual-badge { position: absolute; left: 16px; bottom: 16px; display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px; border-radius: 100px; font-size: .82rem; font-weight: 600; color: #fff;
    background: rgba(5,6,11,.55); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,.16); }

/* ---------- Header: glass ---------- */
.site-header { background: color-mix(in srgb, var(--bg) 72%, transparent); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255,255,255,.06); }
.site-header.scrolled { background: color-mix(in srgb, var(--bg) 85%, transparent); box-shadow: 0 10px 40px -10px rgba(0,0,0,.6); }
.topbar { background: #05060B; border-bottom: 1px solid rgba(255,255,255,.05); }
.icon-btn { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); }
.icon-btn:hover { background: var(--gradient); border-color: transparent; box-shadow: 0 0 24px -6px color-mix(in srgb, var(--neon-1) 60%, transparent); }
.header-cta { border-radius: 12px; }
.dropdown { background: color-mix(in srgb, var(--surface) 85%, transparent); backdrop-filter: blur(18px); border: 1px solid rgba(255,255,255,.08); border-radius: 18px; }
.nav-link { letter-spacing: -0.01em; }
.main-nav.open { background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(20px); }

/* ---------- Forms ---------- */
.form-control { background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.1); border-radius: 12px; }
.form-control:focus { border-color: var(--neon-1); box-shadow: 0 0 0 4px color-mix(in srgb, var(--neon-1) 16%, transparent), 0 0 30px -8px color-mix(in srgb, var(--neon-1) 45%, transparent); background: rgba(255,255,255,.05); }

/* ---------- Blog / article ---------- */
.article { border-radius: 28px; }
/* Cards never stretch to a huge full-width banner; capped + centered. */
.posts-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 400px)); justify-content: center; }
.post-card-media { border-radius: var(--r-xl) var(--r-xl) 0 0; aspect-ratio: 16/10; max-height: 240px; }
/* Branded gradient placeholder for posts without a featured image */
.post-card-placeholder {
    background: linear-gradient(135deg, color-mix(in srgb, var(--neon-1) 80%, #05060B), color-mix(in srgb, var(--neon-2) 65%, #05060B));
    color: rgba(255,255,255,.92); flex-direction: column; gap: 10px; font-size: 2rem;
}
.post-card-placeholder em { font-size: .82rem; font-style: normal; font-weight: 700; letter-spacing: .4px; opacity: .85; }
/* Same branded gradient for image-less project & gallery placeholders */
.project-placeholder {
    background: linear-gradient(135deg, color-mix(in srgb, var(--neon-1) 80%, #05060B), color-mix(in srgb, var(--neon-2) 65%, #05060B)) !important;
    color: rgba(255,255,255,.85) !important;
}
.projects-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 420px)); justify-content: center; }
.tag-chip { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: 100px; }
.tag-chip:hover { background: var(--gradient); border-color: transparent; }
.share-btn { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); }
.share-btn:hover { background: var(--gradient); box-shadow: 0 0 20px -4px color-mix(in srgb, var(--neon-1) 60%, transparent); }
.widget-cta { background: linear-gradient(150deg, color-mix(in srgb, var(--neon-1) 55%, transparent), color-mix(in srgb, var(--neon-2) 45%, transparent)) !important; }

/* ---------- Page hero ---------- */
.page-hero { background: radial-gradient(80% 120% at 50% -20%, color-mix(in srgb, var(--neon-1) 30%, #05060B), #05060B 70%); border-bottom: 1px solid rgba(255,255,255,.06); padding: 84px 0; }
.page-hero::after { -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, #000, transparent 70%); mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, #000, transparent 70%); }
.page-hero h1 { letter-spacing: -0.035em; font-size: clamp(2.1rem, 5.5vw, 3.4rem); }
.breadcrumb { background: color-mix(in srgb, var(--bg) 60%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,.05); }

/* ---------- Footer ---------- */
.site-footer { background: #05060B; border-top: 1px solid rgba(255,255,255,.06); }
.footer-cta { border-radius: 0; background: linear-gradient(120deg, color-mix(in srgb, var(--neon-1) 85%, transparent), color-mix(in srgb, var(--neon-2) 70%, transparent)) !important; border: none; }
.footer-cta::before { content: ''; position: absolute; inset: 0; background: radial-gradient(60% 120% at 15% 0%, rgba(255,255,255,.2), transparent 60%); pointer-events: none; }
.social-links a { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); }
.social-links a:hover { background: var(--gradient); border-color: transparent; box-shadow: 0 0 18px -4px color-mix(in srgb, var(--neon-1) 60%, transparent); }
.newsletter { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); }

/* ---------- Floating / misc ---------- */
.back-to-top { background: var(--gradient); box-shadow: 0 8px 26px -6px color-mix(in srgb, var(--neon-1) 60%, transparent); }
.cookie-consent { border-radius: var(--r-xl); background: color-mix(in srgb, var(--surface) 85%, transparent); backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,.1); }
.cookie-icon { border-radius: 14px; }
.map-cta-map iframe, .contact-map-full iframe { border-radius: var(--r-xl); }
/* Contact map frame — dark placeholder, gradient border, glow */
.map-frame {
    position: relative; border-radius: var(--r-xl); overflow: hidden;
    background: #0a0c14; min-height: 420px;
    border: 1px solid transparent;
    background:
        linear-gradient(#0a0c14, #0a0c14) padding-box,
        linear-gradient(135deg, color-mix(in srgb, var(--neon-1) 40%, transparent), color-mix(in srgb, var(--neon-2) 24%, transparent) 55%, rgba(255,255,255,.05)) border-box;
    box-shadow: 0 30px 70px -30px rgba(0,0,0,.7), 0 0 40px -18px color-mix(in srgb, var(--neon-1) 45%, transparent);
}
.map-frame iframe { width: 100%; height: 460px; border: 0; display: block; }
.contact-map-full iframe { border-radius: 0; }

/* ---------- Marquee / references ---------- */
.marquee-item img { filter: grayscale(1) brightness(1.6); opacity: .55; }
.marquee-item img:hover { filter: none; opacity: 1; }

/* ---------- Scrollbar ---------- */
@media (pointer: fine) {
    ::-webkit-scrollbar { width: 12px; height: 12px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb { background: linear-gradient(var(--neon-1), var(--neon-2)); border-radius: 10px; border: 3px solid var(--bg); }
}

/* ---------- Motion easing ---------- */
a, .btn, .icon-btn, .service-card, .post-card, .project-card, .timeline-card,
.social-links a, .nav-link, .stat-card, .tag-chip, .share-btn { transition-timing-function: cubic-bezier(.2,.7,.3,1); }

/* ---------- Mobile dropdown: solid, static, never clipped ---------- */
@media (max-width: 860px) {
    .dropdown {
        position: static !important;
        left: auto !important; right: auto !important; top: auto !important;
        transform: none !important;
        min-width: 0 !important; width: auto !important; max-width: 100%;
        background: rgba(255,255,255,.035) !important;
        backdrop-filter: none !important; -webkit-backdrop-filter: none !important;
        border: none; border-left: 3px solid var(--neon-1);
        border-radius: 0 12px 12px 0; margin: 6px 0 8px 12px; padding: 6px;
        box-shadow: none; overflow: hidden; animation: none !important;
    }
    .dropdown::before { display: none !important; }
    .dropdown li a {
        color: var(--text); padding: 12px 14px; white-space: normal;
        text-align: left; overflow-wrap: anywhere; justify-content: flex-start;
    }
    .dropdown li a:hover { background: rgba(255,255,255,.05); padding-left: 14px; }
    [data-theme="light"] .dropdown { background: rgba(0,0,0,.04) !important; }
    [data-theme="light"] .dropdown li a { color: var(--text); }
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .section { padding: 58px 0; }
    .section-head { margin-bottom: 36px; }
    :root { --r-xl: 20px; }
}
@media (max-width: 560px) {
    .section { padding: 46px 0; }
    .hero::after { background-size: 40px 40px; }
    .hero-slide .hero-content h1 { font-size: 1.55rem; line-height: 1.22; overflow-wrap: break-word; }
    .hero-content p { font-size: .95rem; }
    .section-title { font-size: clamp(1.55rem, 6vw, 2.1rem); }
    :root { --r-xl: 18px; }
}

@media (prefers-reduced-motion: reduce) {
    .hero::before, .section-tag::before { animation: none; }
    .btn::after { display: none; }
    .service-card, .post-card, .timeline-card, .stat-card, .testimonial-card, .contact-card { transition: none; }
}

/* ==========================================================================
   LIGHT THEME FIXES — the premium layer assumes a dark surface, so
   white-on-white text/borders are restored here for readable light mode.
   ========================================================================== */
[data-theme="light"] .btn-primary {
    background: var(--color-primary); color: #fff; border-color: transparent;
    box-shadow: 0 8px 22px -8px color-mix(in srgb, var(--color-primary) 45%, transparent);
}
[data-theme="light"] .btn-primary:hover { background: var(--gradient); }
[data-theme="light"] .btn-outline { border-color: var(--border); color: var(--text); }
[data-theme="light"] .icon-btn { background: var(--bg-soft); border-color: var(--border); }
[data-theme="light"] .section-tag {
    background: color-mix(in srgb, var(--color-secondary) 10%, transparent);
    border-color: color-mix(in srgb, var(--color-secondary) 22%, transparent);
    color: var(--color-secondary);
}
[data-theme="light"] .form-control { background: #fff; border-color: var(--border); }
[data-theme="light"] .form-control:focus { background: #fff; }
[data-theme="light"] .tag-chip, [data-theme="light"] .share-btn { background: var(--bg-soft); border-color: var(--border); }
[data-theme="light"] .tag-chip:hover, [data-theme="light"] .share-btn:hover { color: #fff; }
[data-theme="light"] .cookie-consent { background: #fff; border-color: var(--border); }
[data-theme="light"] .dropdown { background: #fff; border-color: var(--border); }
[data-theme="light"] .dropdown::before { background: #fff; border-color: var(--border); }
[data-theme="light"] .main-nav.open { background: #fff; }
[data-theme="light"] .site-header { background: color-mix(in srgb, #fff 82%, transparent); border-bottom-color: var(--border); }
[data-theme="light"] .service-card:hover, [data-theme="light"] .post-card:hover, [data-theme="light"] .timeline-card:hover,
[data-theme="light"] .stat-card:hover, [data-theme="light"] .testimonial-card:hover, [data-theme="light"] .contact-card:hover,
[data-theme="light"] .project-card:hover {
    box-shadow: 0 24px 60px -24px rgba(15,23,42,.25),
        0 0 0 1px color-mix(in srgb, var(--color-secondary) 30%, transparent),
        0 0 40px -14px color-mix(in srgb, var(--color-secondary) 40%, transparent);
}
/* Header on light theme: icon buttons & nav readable */
[data-theme="light"] .icon-btn:hover { color: #fff; }