/* ═══════════════════════════════════════════════════════════════
   DeepSeek Fiyat Saati — tasarım
   4 tema: Aydınlık (acik), Kâğıt (kagit), Karanlık (karanlik),
   Sistem (sistem = işletim sistemini takip eder, script.js çözer).
   ═══════════════════════════════════════════════════════════════ */

:root {
	--font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
	--radius: 12px;
	--gecis: 0.25s ease;
}

/* ══════ Aydınlık ══════ */
[data-theme="acik"] {
	color-scheme: light;
	--arka: #f5f6f8;
	--yuzey: #ffffff;
	--metin: #16181d;
	--metin-soluk: #5b6570;
	--metin-cok-soluk: #8a94a0;
	--kenar: #e1e5ea;
	--kenar-guclu: #c9d0d8;
	--golge: 0 1px 2px rgba(16, 24, 40, 0.05), 0 1px 3px rgba(16, 24, 40, 0.06);
	--link: #1a56db;
	--vurgu: #1a56db;
	--off: #0e7a44;
	--off-arka: #e7f6ee;
	--off-cizgi: rgba(14, 122, 68, 0.25);
	--peak: #b33a1f;
	--peak-arka: #fdf0ea;
	--peak-cizgi: rgba(179, 58, 31, 0.25);
	--serit-off: #2fa06a;
	--serit-peak: #e0724f;
}

/* ══════ Kâğıt ══════ */
[data-theme="kagit"] {
	color-scheme: light;
	--arka: #f2ecdc;
	--yuzey: #faf6ea;
	--metin: #2b2a24;
	--metin-soluk: #6d6a5c;
	--metin-cok-soluk: #95917f;
	--kenar: #ddd6c2;
	--kenar-guclu: #c4bca4;
	--golge: 0 1px 2px rgba(60, 50, 20, 0.06);
	--link: #7a5c1e;
	--vurgu: #8a6b26;
	--off: #3f6b35;
	--off-arka: #e9efdd;
	--off-cizgi: rgba(63, 107, 53, 0.25);
	--peak: #94421f;
	--peak-arka: #f3e4d4;
	--peak-cizgi: rgba(148, 66, 31, 0.25);
	--serit-off: #6f9457;
	--serit-peak: #c07d4a;
}

/* ══════ Karanlık ══════ */
[data-theme="karanlik"] {
	color-scheme: dark;
	--arka: #0e1216;
	--yuzey: #151b21;
	--metin: #e7ebee;
	--metin-soluk: #9aa7b2;
	--metin-cok-soluk: #6c7883;
	--kenar: #263038;
	--kenar-guclu: #38434d;
	--golge: 0 1px 3px rgba(0, 0, 0, 0.4);
	--link: #7cb1ff;
	--vurgu: #7cb1ff;
	--off: #56d78a;
	--off-arka: rgba(86, 215, 138, 0.10);
	--off-cizgi: rgba(86, 215, 138, 0.28);
	--peak: #ff9d70;
	--peak-arka: rgba(255, 157, 112, 0.10);
	--peak-cizgi: rgba(255, 157, 112, 0.28);
	--serit-off: #3fa66e;
	--serit-peak: #c96a45;
}

/* ══════ Temel ══════ */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
	margin: 0;
	font-family: var(--font);
	background: var(--arka);
	color: var(--metin);
	line-height: 1.55;
	transition: background-color var(--gecis), color var(--gecis);
}
:focus-visible {
	outline: 2px solid var(--link);
	outline-offset: 2px;
	border-radius: 4px;
}

.sayfa {
	max-width: 760px;
	margin: 0 auto;
	padding: 2.2rem 1.2rem 3rem;
}

/* ══════ Başlık + tema seçici ══════ */
.baslik-ust {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	flex-wrap: wrap;
}
h1 {
	margin: 0;
	font-size: 1.7rem;
	letter-spacing: -0.02em;
}
.giris-metni {
	margin: 0.9rem 0 1.8rem;
	max-width: 62ch;
	font-size: 0.95rem;
	line-height: 1.6;
	color: var(--metin-soluk);
}
.tema-alan { position: relative; }
.tema-acilir-btn {
	appearance: none;
	border: 1px solid var(--kenar);
	background: var(--yuzey);
	color: var(--metin);
	font: inherit;
	font-size: 0.82rem;
	padding: 0.5rem 0.75rem;
	border-radius: 10px;
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	box-shadow: var(--golge);
	transition: border-color var(--gecis), background-color var(--gecis);
}
.tema-acilir-btn:hover { border-color: var(--kenar-guclu); }
.tema-btn-ikon { font-size: 0.9rem; }
.tema-ok { font-size: 0.7rem; opacity: 0.7; }
.tema-menu {
	position: absolute;
	right: 0;
	top: calc(100% + 6px);
	min-width: 150px;
	background: var(--yuzey);
	border: 1px solid var(--kenar);
	border-radius: 10px;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
	padding: 0.3rem;
	z-index: 20;
	opacity: 0;
	transform: translateY(-6px) scale(0.97);
	transition: opacity var(--gecis), transform var(--gecis);
	pointer-events: none;
}
.tema-menu.acik {
	opacity: 1;
	transform: translateY(0) scale(1);
	pointer-events: auto;
}
.tema-opt {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	width: 100%;
	border: 0;
	background: transparent;
	color: var(--metin);
	font: inherit;
	font-size: 0.85rem;
	padding: 0.5rem 0.6rem;
	border-radius: 7px;
	cursor: pointer;
	text-align: left;
}
.tema-opt:hover { background: var(--arka); }
.tema-opt.aktif { background: var(--off-arka); color: var(--off); font-weight: 600; }

/* ══════ Kartlar ══════ */
.kart {
	background: var(--yuzey);
	border: 1px solid var(--kenar);
	border-radius: var(--radius);
	box-shadow: var(--golge);
	margin: 0 0 1rem;
	overflow: hidden;
}

/* ══════ Durum kartı ══════ */
.durum-kart {
	padding: 1.3rem 1.5rem 1.35rem;
	transition: background-color var(--gecis), border-color var(--gecis);
}
.durum-kart[data-durum="off"]  { background: var(--off-arka);  border-color: var(--off-cizgi); }
.durum-kart[data-durum="peak"] { background: var(--peak-arka); border-color: var(--peak-cizgi); }
.rozet {
	display: flex;
	align-items: center;
	gap: 0.5em;
	margin: 0;
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}
.durum-kart[data-durum="off"]  .rozet { color: var(--off); }
.durum-kart[data-durum="peak"] .rozet { color: var(--peak); }
.nokta {
	width: 9px;
	height: 9px;
	border-radius: 50%;
	background: currentColor;
	display: inline-block;
	flex: none;
}
.sayac {
	display: flex;
	align-items: baseline;
	gap: 0.45em;
	margin: 0.5rem 0 0;
	font-family: var(--mono);
	font-variant-numeric: tabular-nums;
	font-size: clamp(2rem, 7vw, 2.8rem);
	font-weight: 700;
	line-height: 1.1;
	letter-spacing: -0.02em;
}
.sayac-birim {
	font-family: var(--font);
	font-size: 1rem;
	font-weight: 400;
	opacity: 0.75;
}
.degisim {
	margin: 0.9rem 0 0;
	padding-top: 0.8rem;
	border-top: 1px solid var(--kenar);
	font-size: 0.9rem;
	color: var(--metin-soluk);
	transition: color var(--gecis), border-color var(--gecis);
}
.durum-kart[data-durum="off"]  .degisim { color: var(--off);  border-top-color: var(--off-cizgi); }
.durum-kart[data-durum="peak"] .degisim { color: var(--peak); border-top-color: var(--peak-cizgi); }
.ok { margin-right: 0.35em; font-family: var(--mono); opacity: 0.6; }

/* ══════ Pencere tablosu ══════ */
.pencereler-kart { padding: 0 1.4rem 1.1rem; }
.pencereler-baslik {
	margin: 0;
	padding: 1.1rem 0 0.4rem;
	font-size: 0.72rem;
	text-transform: uppercase;
	letter-spacing: 0.07em;
	color: var(--metin-cok-soluk);
}
.pencere-bolge {
	font-weight: 600;
	color: var(--metin-soluk);
}
.pencere-tablo {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.9rem;
}
.pencere-tablo th,
.pencere-tablo td {
	padding: 0.6rem 0.2rem;
	border-top: 1px solid var(--kenar);
	text-align: left;
	font-weight: 400;
	vertical-align: baseline;
}
.pencere-tablo tr:first-child th { border-top: 0; }
.sutun-durum { width: 1%; white-space: nowrap; padding-right: 1rem; }
.sutun-sure { width: 1%; text-align: right; white-space: nowrap; }
.hucre-durum {
	white-space: nowrap;
	display: flex;
	align-items: center;
	gap: 0.45em;
	font-weight: 600;
}
.mini-nokta {
	width: 7px;
	height: 7px;
	border-radius: 50%;
	display: inline-block;
	flex: none;
}
tr.pencere-off  .mini-nokta { background: var(--off); }
tr.pencere-peak .mini-nokta { background: var(--peak); }
tr.pencere-off  .hucre-durum { color: var(--off); }
tr.pencere-peak .hucre-durum { color: var(--peak); }
tr.pencere-off.suanki  { background: var(--off-arka); }
tr.pencere-peak.suanki { background: var(--peak-arka); }
tr.suanki .hucre-aralik,
tr.suanki .hucre-sure { color: var(--metin); font-weight: 600; }
.hucre-aralik {
	font-family: var(--mono);
	font-variant-numeric: tabular-nums;
	color: var(--metin-soluk);
	white-space: nowrap;
}
.hucre-sure { color: var(--metin-cok-soluk); white-space: nowrap; }

/* ══════ Zaman şeridi ══════ */
.serit-kart { padding: 1.1rem 1.4rem 0.9rem; }
.zaman-seridi { position: relative; height: 12px; }
.serit-parcalar { display: flex; gap: 2px; height: 12px; }
.serit-parca { height: 100%; border-radius: 2px; min-width: 0; }
.serit-off  { background: var(--serit-off);  opacity: 0.85; }
.serit-peak { background: var(--serit-peak); opacity: 0.9; }
.simdi-isareti {
	position: absolute;
	top: -5px;
	height: 22px;
	width: 2px;
	background: var(--metin);
	border-radius: 1px;
	transition: left 1s linear;
}
.eksen {
	display: flex;
	justify-content: space-between;
	margin-top: 0.55rem;
	font-family: var(--mono);
	font-size: 0.7rem;
	color: var(--metin-cok-soluk);
}

/* ══════ Araç çubuğu ══════ */
.arac-cubugu {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 0.5rem 0.8rem;
	margin: 0.15rem 0 1rem;
}
.bolge-gecis {
	display: inline-flex;
	border: 1px solid var(--kenar);
	border-radius: 8px;
	overflow: hidden;
	background: var(--yuzey);
	box-shadow: var(--golge);
}
.bolge-btn {
	appearance: none;
	border: 0;
	background: transparent;
	color: var(--metin-soluk);
	font: inherit;
	font-size: 0.8rem;
	padding: 0.4rem 0.8rem;
	cursor: pointer;
	transition: background-color var(--gecis), color var(--gecis);
}
.bolge-btn + .bolge-btn { border-left: 1px solid var(--kenar); }
.bolge-btn:hover { color: var(--metin); }
.bolge-btn.aktif { background: var(--vurgu); color: #fff; }
.dilim-bilgi { font-size: 0.8rem; color: var(--metin-cok-soluk); }

/* ══════ Fiyat kartı ══════ */
.fiyat-kart { padding: 1.2rem 1.4rem 1rem; }
.fiyat-kisim { padding-bottom: 1rem; }
.fiyat-sonraki {
	border-top: 1px solid var(--kenar);
	padding-top: 1rem;
}
.kart-baslik {
	display: flex;
	align-items: center;
	gap: 0.5em;
	margin: 0 0 0.7rem;
	font-size: 0.72rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--metin-soluk);
}
.fiyat-simdi .kart-baslik { color: var(--off); }
#fiyatKart[data-durum="peak"] .fiyat-simdi .kart-baslik { color: var(--peak); }
.fiyat-satiri {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 1rem;
	padding: 0.3rem 0;
}
.fiyat-model { font-size: 0.85rem; color: var(--metin-soluk); }
.fiyat-cift {
	display: inline-flex;
	gap: 1.2rem;
	font-family: var(--mono);
	font-variant-numeric: tabular-nums;
}
.fiyat-hucre {
	display: inline-flex;
	flex-direction: column;
	text-align: right;
	gap: 0.1rem;
}
.fiyat-hucre strong { font-size: 1rem; }
.fiyat-tur {
	font-family: var(--font);
	font-size: 0.68rem;
	color: var(--metin-cok-soluk);
	text-transform: lowercase;
}
.fiyat-simdi .fiyat-hucre strong { color: var(--off); }
#fiyatKart[data-durum="peak"] .fiyat-simdi .fiyat-hucre strong { color: var(--peak); }
.fiyat-sonraki .fiyat-hucre strong { color: var(--metin); }
.kart-not {
	font-size: 0.78rem;
	color: var(--metin-cok-soluk);
	border-top: 1px dashed var(--kenar);
	padding-top: 0.8rem;
	margin: 0;
}

/* ══════ Notlar ══════ */
.notlar {
	margin-top: 1.4rem;
	font-size: 0.85rem;
	color: var(--metin-soluk);
	line-height: 1.6;
}
.notlar a { color: var(--link); }
.uyari {
	margin-top: 1.4rem;
	border: 1px solid var(--kenar);
	border-left: 3px solid var(--link);
	border-radius: 10px;
	background: var(--yuzey);
	padding: 0.9rem 1.1rem;
	box-shadow: var(--golge);
	font-size: 0.85rem;
	color: var(--metin-soluk);
}
.uyari-baslik {
	margin: 0 0 0.4rem;
	font-weight: 700;
	font-size: 0.8rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--metin);
}
.uyari-metin { margin: 0; line-height: 1.6; }
.uyari-kaynak { margin: 0.6rem 0 0; font-size: 0.78rem; color: var(--metin-cok-soluk); }
.uyari a { color: var(--link); }

/* ══════ Navbar ══════ */
.navbar {
	position: sticky;
	top: 0;
	z-index: 50;
	background: color-mix(in srgb, var(--arka) 82%, transparent);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	border-bottom: 1px solid var(--kenar);
}
.navbar-icerik {
	max-width: 760px;
	margin: 0 auto;
	padding: 0.7rem 1.2rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
}
.navbar-logo {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-weight: 700;
	color: var(--metin);
	text-decoration: none;
	font-size: 1rem;
}
.navbar-logo svg { color: var(--vurgu); }
.navbar-sag {
	display: flex;
	align-items: center;
	gap: 0.8rem;
}
.navbar-link {
	color: var(--metin-soluk);
	text-decoration: none;
	font-size: 0.85rem;
	font-weight: 500;
	transition: color var(--gecis);
}
.navbar-link:hover { color: var(--metin); }

/* ══════ Hero ══════ */
.hero {
	text-align: center;
	padding: 2.4rem 1.2rem 1.6rem;
}
.hero-badge {
	display: inline-flex;
	align-items: center;
	gap: 0.5em;
	margin: 0 0 1rem;
	padding: 0.35rem 0.8rem;
	border: 1px solid var(--kenar);
	border-radius: 999px;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.05em;
	color: var(--metin-soluk);
	background: var(--yuzey);
}
.hero-badge-nokta {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--off);
	animation: nabız 2s ease-in-out infinite;
}
@keyframes nabız {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.35; }
}
.hero h1 {
	margin: 0 auto;
	max-width: 16ch;
}
.hero .giris-metni {
	margin: 1rem auto 0;
	max-width: 62ch;
}
.hero-butonlar {
	display: flex;
	justify-content: center;
	gap: 0.75rem;
	margin-top: 1.6rem;
	flex-wrap: wrap;
}
.btn {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.6rem 1.1rem;
	border-radius: 10px;
	font-size: 0.9rem;
	font-weight: 600;
	text-decoration: none;
	transition: background-color var(--gecis), color var(--gecis), border-color var(--gecis);
}
.btn-birincil {
	background: var(--vurgu);
	color: #fff;
}
.btn-birincil:hover { opacity: 0.9; }
.btn-ikincil {
	border: 1px solid var(--kenar);
	color: var(--metin);
	background: var(--yuzey);
}
.btn-ikincil:hover { border-color: var(--kenar-guclu); }

/* ══════ İstatistikler ══════ */
.istatistikler {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 0.75rem;
	margin: 0 0 1rem;
}
.istatistik-kart {
	background: var(--yuzey);
	border: 1px solid var(--kenar);
	border-radius: var(--radius);
	box-shadow: var(--golge);
	padding: 0.9rem 1rem;
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}
.istatistik-ikon { font-size: 1.1rem; }
.istatistik-etiket {
	font-size: 0.7rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--metin-cok-soluk);
}
.istatistik-deger {
	font-family: var(--mono);
	font-variant-numeric: tabular-nums;
	font-size: 1.05rem;
	font-weight: 700;
	color: var(--metin);
}

/* ══════ Bölüm başlıkları ══════ */
.bolum-baslik {
	margin: 0 0 0.35rem;
	font-size: 1.25rem;
	font-weight: 700;
	letter-spacing: -0.01em;
}

/* ══════ UTC Dönüştürücü ══════ */
.utc-kart { padding: 1.2rem 1.4rem 1.2rem; }
.utc-aciklama {
	margin: 0 0 0.9rem;
	font-size: 0.88rem;
	color: var(--metin-soluk);
}
.utc-label {
	display: block;
	font-size: 0.75rem;
	font-weight: 600;
	color: var(--metin-soluk);
	margin: 0 0 0.35rem;
}
.utc-secim {
	width: 100%;
	padding: 0.55rem 0.75rem;
	border: 1px solid var(--kenar);
	border-radius: 10px;
	background: var(--arka);
	color: var(--metin);
	font: inherit;
	font-size: 0.9rem;
}
.utc-sonuc {
	margin-top: 0.9rem;
	padding: 0.75rem 1rem;
	border-radius: 10px;
	background: var(--arka);
	border: 1px solid var(--kenar);
	font-size: 0.9rem;
	color: var(--metin);
	font-family: var(--mono);
	font-variant-numeric: tabular-nums;
}

/* ══════ FAQ ══════ */
.faq-kart { padding: 1.2rem 1.4rem 1.2rem; }
.faq-item {
	border-top: 1px solid var(--kenar);
	padding: 0.15rem 0;
}
.faq-item:first-of-type { border-top: 0; }
.faq-item summary {
	cursor: pointer;
	padding: 0.85rem 0;
	font-weight: 600;
	color: var(--metin);
	list-style: none;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
	content: '+';
	font-size: 1.1rem;
	color: var(--metin-cok-soluk);
	transition: transform var(--gecis);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
	margin: 0 0 0.85rem;
	font-size: 0.9rem;
	color: var(--metin-soluk);
	line-height: 1.6;
}

/* ══════ Timeline tooltip ══════ */
.serit-parca { position: relative; }
.serit-parca::after {
	content: attr(data-saat) ' · ' attr(data-durum);
	position: absolute;
	bottom: calc(100% + 8px);
	left: 50%;
	transform: translateX(-50%) translateY(4px);
	background: var(--metin);
	color: var(--arka);
	font-family: var(--mono);
	font-size: 0.68rem;
	font-weight: 600;
	padding: 0.25rem 0.5rem;
	border-radius: 6px;
	white-space: nowrap;
	opacity: 0;
	pointer-events: none;
	transition: opacity var(--gecis), transform var(--gecis);
	z-index: 5;
}
.serit-parca:hover::after {
	opacity: 1;
	transform: translateX(-50%) translateY(0);
}

/* ══════ Alt bilgi (footer) ══════ */
.alt {
	margin-top: 2.4rem;
	padding-top: 1.4rem;
	border-top: 1px solid var(--kenar);
	text-align: center;
}
.alt-marka {
	margin: 0;
	font-weight: 700;
	color: var(--metin);
	font-size: 0.95rem;
}
.alt-not {
	margin: 0.4rem 0 0;
	font-size: 0.8rem;
	color: var(--metin-cok-soluk);
}
.alt-not a { color: var(--link); text-decoration: none; }
.alt-not a:hover { text-decoration: underline; }

/* ══════ Küçük ekranlar ══════ */
@media (max-width: 560px) {
	.fiyat-satiri { flex-direction: column; gap: 0.2rem; }
	.fiyat-cift { width: 100%; justify-content: space-between; }
	.tema-menu { left: 0; right: auto; }
	.istatistikler { grid-template-columns: repeat(2, 1fr); }
	.navbar-link { font-size: 0.8rem; }
	.hero { padding: 1.8rem 1.2rem 1.2rem; }
}