/* Reset (Tailwind v4 preflight, MIT License) */
@layer theme {
	:root,:host {
		--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
		--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
		--text-xs:.75rem;
		--text-sm:.875rem;
		--text-base:1rem;
		--text-lg:1.125rem;
		--text-xl:1.25rem;
		--text-2xl:1.5rem;
		--text-3xl:1.875rem;
		--text-4xl:2.25rem;
		--text-5xl:3rem;
		--radius-sm:.25rem;
		--radius-md:.375rem;
		--radius-lg:.5rem;
		--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;
		--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;
		--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;
		--ease-out:cubic-bezier(0, 0, .2, 1);
		--default-transition-duration:.15s;
		--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);
		--default-font-family:var(--font-sans);
		--default-mono-font-family:var(--font-mono);
	}
}

@layer base {
	*,:after,:before,::backdrop {
		box-sizing:border-box;
		border:0 solid;
		margin:0;
		padding:0;
	}
	::file-selector-button {
		box-sizing:border-box;
		border:0 solid;
		margin:0;
		padding:0;
	}
	html,:host {
		-webkit-text-size-adjust:100%;
		tab-size:4;
		line-height:1.5;
		font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");
		font-feature-settings:var(--default-font-feature-settings,normal);
		font-variation-settings:var(--default-font-variation-settings,normal);
		-webkit-tap-highlight-color:transparent;
	}
	hr {
		height:0;
		color:inherit;
		border-top-width:1px;
	}
	abbr:where([title]) {
		-webkit-text-decoration:underline dotted;
		text-decoration:underline dotted;
	}
	h1,h2,h3,h4,h5,h6 {
		font-size:inherit;
		font-weight:inherit;
	}
	a {
		color:inherit;
		-webkit-text-decoration:inherit;
		text-decoration:inherit;
	}
	b,strong {
		font-weight:bolder;
	}
	code,kbd,samp,pre {
		font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);
		font-feature-settings:var(--default-mono-font-feature-settings,normal);
		font-variation-settings:var(--default-mono-font-variation-settings,normal);
		font-size:1em;
	}
	small {
		font-size:80%;
	}
	sub,sup {
		vertical-align:baseline;
		font-size:75%;
		line-height:0;
		position:relative;
	}
	sub {
		bottom:-.25em;
	}
	sup {
		top:-.5em;
	}
	table {
		text-indent:0;
		border-color:inherit;
		border-collapse:collapse;
	}
	:-moz-focusring {
		outline:auto;
	}
	progress {
		vertical-align:baseline;
	}
	summary {
		display:list-item;
	}
	ol,ul,menu {
		list-style:none;
	}
	img,svg,video,canvas,audio,iframe,embed,object {
		vertical-align:middle;
		display:block;
	}
	img,video {
		max-width:100%;
		height:auto;
	}
	button,input,select,optgroup,textarea {
		font:inherit;
		font-feature-settings:inherit;
		font-variation-settings:inherit;
		letter-spacing:inherit;
		color:inherit;
		opacity:1;
		background-color:#0000;
		border-radius:0;
	}
	::file-selector-button {
		font:inherit;
		font-feature-settings:inherit;
		font-variation-settings:inherit;
		letter-spacing:inherit;
		color:inherit;
		opacity:1;
		background-color:#0000;
		border-radius:0;
	}
	:where(select:is([multiple],[size])) optgroup {
		font-weight:bolder;
	}
	:where(select:is([multiple],[size])) optgroup option {
		padding-inline-start:20px;
	}
	::file-selector-button {
		margin-inline-end:4px;
	}
	::placeholder {
		opacity:1;
	}
	@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px) {
		::placeholder {
			color:currentColor;
		}
		@supports (color:color-mix(in lab,red,red)) {
			::placeholder {
				color:color-mix(in oklab,currentcolor 50%,transparent);
			}
		}
	}
	textarea {
		resize:vertical;
	}
	::-webkit-search-decoration {
		-webkit-appearance:none;
	}
	::-webkit-date-and-time-value {
		min-height:1lh;
		text-align:inherit;
	}
	::-webkit-datetime-edit {
		display:inline-flex;
	}
	::-webkit-datetime-edit-fields-wrapper {
		padding:0;
	}
	::-webkit-datetime-edit {
		padding-block:0;
	}
	::-webkit-datetime-edit-year-field {
		padding-block:0;
	}
	::-webkit-datetime-edit-month-field {
		padding-block:0;
	}
	::-webkit-datetime-edit-day-field {
		padding-block:0;
	}
	::-webkit-datetime-edit-hour-field {
		padding-block:0;
	}
	::-webkit-datetime-edit-minute-field {
		padding-block:0;
	}
	::-webkit-datetime-edit-second-field {
		padding-block:0;
	}
	::-webkit-datetime-edit-millisecond-field {
		padding-block:0;
	}
	::-webkit-datetime-edit-meridiem-field {
		padding-block:0;
	}
	::-webkit-calendar-picker-indicator {
		line-height:1;
	}
	:-moz-ui-invalid {
		box-shadow:none;
	}
	button,input:where([type=button],[type=reset],[type=submit]) {
		appearance:button;
	}
	::file-selector-button {
		appearance:button;
	}
	::-webkit-inner-spin-button {
		height:auto;
	}
	::-webkit-outer-spin-button {
		height:auto;
	}
	[hidden]:where(:not([hidden=until-found])) {
		display:none!important;
	}
}

/* ==========================================================================
   Global CSS — Özcan Kolyiğit
   Teknik çizim / kareli defter görünümü.
   Google Fonts: Archivo (metin ve başlıklar, genişlik ekseni) + JetBrains Mono (etiketler)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens — Light Mode (kâğıt)
   -------------------------------------------------------------------------- */
:root {
	/* Colors */
	--color-bg: #f3f1eb;
	--color-surface: #ebe8e0;
	--color-line: #d6d2c7;
	--color-line-strong: #a9a59a;
	--color-grid: rgba(22, 22, 20, 0.04);
	--color-grid-major: rgba(22, 22, 20, 0.07);

	--color-text-primary: #161614;
	--color-text-secondary: #4d4c46;
	--color-text-muted: #6b6a62;

	--color-accent: #c2410c;
	--color-accent-hover: #9a3412;
	--color-on-accent: #fff8f3;

	/* Typography */
	--font-body: 'Archivo', system-ui, sans-serif;
	--font-heading: 'Archivo', system-ui, sans-serif;
	--font-mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;

	--text-label: 0.6875rem;
	--text-xs: 0.75rem;
	--text-sm: 0.875rem;
	--text-base: 1rem;
	--text-lg: 1.125rem;
	--text-xl: 1.25rem;
	--text-2xl: 1.5rem;

	/* Spacing */
	--space-1: 0.25rem;
	--space-2: 0.5rem;
	--space-3: 0.75rem;
	--space-4: 1rem;
	--space-5: 1.25rem;
	--space-6: 1.5rem;
	--space-8: 2rem;
	--space-10: 2.5rem;
	--space-12: 3rem;
	--space-16: 4rem;
	--space-20: 5rem;

	/* Layout */
	--max-width: 1000px;
	--max-width-wide: 1280px;
	--header-height: 64px;
	--grid-size: 24px;

	/* Transitions */
	--transition-fast: 150ms ease;
	--transition-normal: 250ms ease;
	--transition-slow: 400ms ease;
}

/* --------------------------------------------------------------------------
   Dark Mode (karatahta)
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
	--color-bg: #111110;
	--color-surface: #191917;
	--color-line: #2b2a27;
	--color-line-strong: #4a4943;
	--color-grid: rgba(220, 216, 207, 0.025);
	--color-grid-major: rgba(220, 216, 207, 0.05);

	--color-text-primary: #dcd8cf;
	--color-text-secondary: #a3a097;
	--color-text-muted: #85837a;

	--color-accent: #ff5a1f;
	--color-accent-hover: #ff7a47;
	--color-on-accent: #111110;
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
html {
	scroll-behavior: smooth;
	-webkit-text-size-adjust: 100%;
	font-size: 16px;
}

body {
	font-family: var(--font-body);
	font-size: var(--text-base);
	line-height: 1.65;
	color: var(--color-text-primary);
	background-color: var(--color-bg);
	/* Kareli defter: ince kareler + her 5 karede bir koyu çizgi */
	background-image:
		linear-gradient(var(--color-grid-major) 1px, transparent 1px),
		linear-gradient(90deg, var(--color-grid-major) 1px, transparent 1px),
		linear-gradient(var(--color-grid) 1px, transparent 1px),
		linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
	background-size:
		calc(var(--grid-size) * 5) calc(var(--grid-size) * 5),
		calc(var(--grid-size) * 5) calc(var(--grid-size) * 5),
		var(--grid-size) var(--grid-size),
		var(--grid-size) var(--grid-size);
	background-position: center top;
	transition: background-color var(--transition-slow), color var(--transition-slow);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

/* Köşelerdeki kesim işaretleri */
body::after {
	content: '';
	position: fixed;
	inset: 12px;
	z-index: 200;
	pointer-events: none;
	--mark: var(--color-line-strong);
	background:
		linear-gradient(var(--mark), var(--mark)) left top / 14px 1px,
		linear-gradient(var(--mark), var(--mark)) left top / 1px 14px,
		linear-gradient(var(--mark), var(--mark)) right top / 14px 1px,
		linear-gradient(var(--mark), var(--mark)) right top / 1px 14px,
		linear-gradient(var(--mark), var(--mark)) left bottom / 14px 1px,
		linear-gradient(var(--mark), var(--mark)) left bottom / 1px 14px,
		linear-gradient(var(--mark), var(--mark)) right bottom / 14px 1px,
		linear-gradient(var(--mark), var(--mark)) right bottom / 1px 14px;
	background-repeat: no-repeat;
}

img {
	display: block;
	max-width: 100%;
	height: auto;
}

a {
	color: var(--color-accent);
	text-decoration: none;
	transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover {
	color: var(--color-accent-hover);
}

/* --------------------------------------------------------------------------
   Layout Utilities
   -------------------------------------------------------------------------- */
.container {
	width: 100%;
	max-width: var(--max-width);
	margin-inline: auto;
	padding-inline: var(--space-6);
}

.container--wide {
	max-width: var(--max-width-wide);
}

.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: var(--font-heading);
	font-weight: 700;
	line-height: 1.1;
	color: var(--color-text-primary);
}

/* Dev, geniş ve küçük harfli başlık; altında cetvel */
.section-title,
.cta-card h2,
.article-title,
.error-code {
	font-stretch: 125%;
	font-weight: 800;
	font-size: clamp(2.25rem, 7vw, 4.5rem);
	line-height: 0.95;
	letter-spacing: -0.03em;
	text-transform: lowercase;
}

/* Cetvel: her karede küçük, her 5 karede büyük çentik */
.section-title,
.article-header {
	position: relative;
	padding-bottom: var(--space-6);
	margin-bottom: var(--space-10);
	border-bottom: 1px solid var(--color-line-strong);
	background-image:
		repeating-linear-gradient(90deg, var(--color-line-strong) 0 1px, transparent 1px calc(var(--grid-size) * 5)),
		repeating-linear-gradient(90deg, var(--color-line) 0 1px, transparent 1px var(--grid-size));
	background-size: 100% 12px, 100% 6px;
	background-position: left bottom, left bottom;
	background-repeat: no-repeat;
}

/* Küçük teknik etiket (mono, büyük harf) */
.label,
.section-title::before,
.cta-card h2::before {
	display: block;
	font-family: var(--font-mono);
	font-size: var(--text-label);
	font-weight: 500;
	font-stretch: 100%;
	letter-spacing: 0.12em;
	line-height: 1;
	text-transform: uppercase;
	color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	border-bottom: 1px solid var(--color-line);
	background: color-mix(in srgb, var(--color-bg) 88%, transparent);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	transition: background var(--transition-slow), border-color var(--transition-slow);
}

.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: var(--header-height);
	gap: var(--space-6);
}

.site-logo {
	flex-shrink: 0;
	display: inline-flex;
	align-items: center;
}

.logo-img {
	height: 40px;
	width: auto;
}

:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }
:root:not([data-theme="dark"]) .logo-light { display: block; }
:root:not([data-theme="dark"]) .logo-dark { display: none; }

.header-actions {
	display: flex;
	align-items: center;
	gap: 0;
	flex-shrink: 0;
}

.theme-btn,
.lang-switcher-btn {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border: 1px solid var(--color-line-strong);
	background: transparent;
	color: var(--color-text-secondary);
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	font-weight: 500;
	letter-spacing: 0.08em;
	cursor: pointer;
	transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.lang-switcher-btn {
	border-right: 0;
}

.theme-btn svg {
	width: 16px;
	height: 16px;
}

.theme-btn:hover,
.lang-switcher-btn:hover {
	background: var(--color-text-primary);
	border-color: var(--color-text-primary);
	color: var(--color-bg);
}

:root[data-theme="dark"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: block; }
:root:not([data-theme="dark"]) .icon-sun { display: block; }
:root:not([data-theme="dark"]) .icon-moon { display: none; }

/* --------------------------------------------------------------------------
   Ana Sayfa — Giriş (koordinat düzlemi ve eğri)
   -------------------------------------------------------------------------- */
.main-content {
	counter-reset: section;
}

.hero-section {
	border-bottom: 1px solid var(--color-line);
}

.hero-section .container {
	position: relative;
	display: flex;
	justify-content: flex-end;
	align-items: flex-start;
	height: clamp(220px, 30vw, 340px);
	padding-top: var(--space-6);
	overflow: hidden;
}

/* Eksenler, çentikler, x / y / O etiketleri */
.hero-section .container::before,
.hero-section .container::after {
	content: '';
	position: absolute;
	inset: 0 var(--space-6);
	pointer-events: none;
	-webkit-mask-repeat: no-repeat;
	mask-repeat: no-repeat;
	-webkit-mask-position: left bottom;
	mask-position: left bottom;
	-webkit-mask-size: auto 100%;
	mask-size: auto 100%;
}

.hero-section .container::before {
	background: var(--color-line-strong);
	-webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 360' width='1200' height='360'%3E%3Cg fill='none' stroke='%23000' stroke-width='1'%3E%3Cpath d='M30 200H1190M100 10V352'/%3E%3Cpath d='M170 194V206M240 194V206M310 194V206M380 194V206M450 194V206M520 194V206M590 194V206M660 194V206M730 194V206M800 194V206M870 194V206M940 194V206M1010 194V206M1080 194V206M1150 194V206M94 60H106M94 130H106M94 270H106M94 340H106'/%3E%3Cpath d='M1180 194L1190 200L1180 206M94 20L100 10L106 20'/%3E%3C/g%3E%3Cg font-family='monospace' font-size='15' fill='%23000'%3E%3Ctext x='1172' y='226'%3Ex%3C/text%3E%3Ctext x='114' y='26'%3Ey%3C/text%3E%3Ctext x='78' y='222'%3EO%3C/text%3E%3C/g%3E%3C/svg%3E");
	mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 360' width='1200' height='360'%3E%3Cg fill='none' stroke='%23000' stroke-width='1'%3E%3Cpath d='M30 200H1190M100 10V352'/%3E%3Cpath d='M170 194V206M240 194V206M310 194V206M380 194V206M450 194V206M520 194V206M590 194V206M660 194V206M730 194V206M800 194V206M870 194V206M940 194V206M1010 194V206M1080 194V206M1150 194V206M94 60H106M94 130H106M94 270H106M94 340H106'/%3E%3Cpath d='M1180 194L1190 200L1180 206M94 20L100 10L106 20'/%3E%3C/g%3E%3Cg font-family='monospace' font-size='15' fill='%23000'%3E%3Ctext x='1172' y='226'%3Ex%3C/text%3E%3Ctext x='114' y='26'%3Ey%3C/text%3E%3Ctext x='78' y='222'%3EO%3C/text%3E%3C/g%3E%3C/svg%3E");
}

/* Bézier eğrisi, kontrol noktaları ve tutamaçlar */
.hero-section .container::after {
	background: var(--color-text-secondary);
	-webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 360' width='1200' height='360'%3E%3Cg fill='none' stroke='%23000'%3E%3Cpath stroke-width='2' d='M100 200C193 40 287 40 380 200C450 320 590 320 660 200C707 120 893 120 940 200C964 240 1137 240 1160 200'/%3E%3Cpath stroke-width='1' stroke-dasharray='3 4' d='M100 200L193 40M287 40L380 200M380 200L450 320M590 320L660 200M660 200L707 120M893 120L940 200M940 200L964 240M1137 240L1160 200'/%3E%3Ccircle cx='100' cy='200' r='5' stroke-width='1.5'/%3E%3Ccircle cx='380' cy='200' r='5' stroke-width='1.5'/%3E%3Ccircle cx='660' cy='200' r='5' stroke-width='1.5'/%3E%3Ccircle cx='940' cy='200' r='5' stroke-width='1.5'/%3E%3Ccircle cx='1160' cy='200' r='5' stroke-width='1.5'/%3E%3C/g%3E%3Cg fill='%23000'%3E%3Crect x='189.5' y='36.5' width='7' height='7'/%3E%3Crect x='283.5' y='36.5' width='7' height='7'/%3E%3Crect x='446.5' y='316.5' width='7' height='7'/%3E%3Crect x='586.5' y='316.5' width='7' height='7'/%3E%3Crect x='703.5' y='116.5' width='7' height='7'/%3E%3Crect x='889.5' y='116.5' width='7' height='7'/%3E%3Crect x='960.5' y='236.5' width='7' height='7'/%3E%3Crect x='1133.5' y='236.5' width='7' height='7'/%3E%3C/g%3E%3C/svg%3E");
	mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 360' width='1200' height='360'%3E%3Cg fill='none' stroke='%23000'%3E%3Cpath stroke-width='2' d='M100 200C193 40 287 40 380 200C450 320 590 320 660 200C707 120 893 120 940 200C964 240 1137 240 1160 200'/%3E%3Cpath stroke-width='1' stroke-dasharray='3 4' d='M100 200L193 40M287 40L380 200M380 200L450 320M590 320L660 200M660 200L707 120M893 120L940 200M940 200L964 240M1137 240L1160 200'/%3E%3Ccircle cx='100' cy='200' r='5' stroke-width='1.5'/%3E%3Ccircle cx='380' cy='200' r='5' stroke-width='1.5'/%3E%3Ccircle cx='660' cy='200' r='5' stroke-width='1.5'/%3E%3Ccircle cx='940' cy='200' r='5' stroke-width='1.5'/%3E%3Ccircle cx='1160' cy='200' r='5' stroke-width='1.5'/%3E%3C/g%3E%3Cg fill='%23000'%3E%3Crect x='189.5' y='36.5' width='7' height='7'/%3E%3Crect x='283.5' y='36.5' width='7' height='7'/%3E%3Crect x='446.5' y='316.5' width='7' height='7'/%3E%3Crect x='586.5' y='316.5' width='7' height='7'/%3E%3Crect x='703.5' y='116.5' width='7' height='7'/%3E%3Crect x='889.5' y='116.5' width='7' height='7'/%3E%3Crect x='960.5' y='236.5' width='7' height='7'/%3E%3Crect x='1133.5' y='236.5' width='7' height='7'/%3E%3C/g%3E%3C/svg%3E");
}

.hero-wrapper {
	position: relative;
	z-index: 1;
}

.hero-social {
	display: flex;
	gap: 0;
}

.social-icon-link {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border: 1px solid var(--color-line-strong);
	margin-left: -1px;
	background: var(--color-bg);
	color: var(--color-text-secondary);
	transition: color var(--transition-fast), background var(--transition-fast);
}

.social-icon-link svg {
	width: 16px;
	height: 16px;
}

.social-icon-link:hover {
	background: var(--color-text-primary);
	color: var(--color-bg);
}

/* --------------------------------------------------------------------------
   Bölümler
   -------------------------------------------------------------------------- */
.section {
	padding: var(--space-16) 0 var(--space-12);
	scroll-margin-top: var(--header-height);
	counter-increment: section;
}

.section-divider {
	border-top: 0;
}

.section-title::before {
	content: '§ ' counter(section, decimal-leading-zero);
	margin-bottom: var(--space-4);
	color: var(--color-accent);
}

/* Hakkımda */
.about-profile {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--space-10);
}

@media (min-width: 720px) {
	.about-profile {
		grid-template-columns: 220px 1fr;
		gap: var(--space-12);
	}
}

.about-profile-img {
	width: 220px;
	aspect-ratio: 1;
	height: auto;
	object-fit: cover;
	background: var(--color-surface);
	outline: 1px solid var(--color-line-strong);
	outline-offset: 8px;
	margin: 8px;
	filter: grayscale(1) contrast(1.05);
	transition: filter var(--transition-slow);
}

.about-profile-img:hover {
	filter: none;
}

@media (max-width: 719px) {
	.about-profile-img {
		width: 160px;
	}
}

.about-profile-content p {
	color: var(--color-text-secondary);
	font-size: var(--text-lg);
	line-height: 1.7;
	margin-bottom: var(--space-4);
	max-width: 62ch;
}

/* Daktiloyla yazılmış gibi */
.about-profile-content p:not(:first-child) {
	font-family: 'Special Elite', var(--font-mono);
	font-size: 1.125rem;
	line-height: 1.85;
}

.about-profile-content p:first-child {
	color: var(--color-text-primary);
	font-size: clamp(1.5rem, 3.4vw, 2.25rem);
	line-height: 1.15;
	letter-spacing: -0.015em;
	margin-bottom: var(--space-6);
}

.about-profile-content p:last-child {
	margin-bottom: 0;
}

.about-profile-content strong {
	font-weight: 700;
}

/* Zaman çizelgesi → teknik tablo */

.timeline-item {
	display: grid;
	grid-template-columns: 9.5rem 1fr;
	column-gap: var(--space-6);
	row-gap: var(--space-1);
	padding: var(--space-4) 0;
	border-bottom: 1px solid var(--color-line);
	transition: background var(--transition-fast);
}

.timeline-item:hover {
	background: color-mix(in srgb, var(--color-surface) 70%, transparent);
}

.timeline-dot {
	display: none;
}

.timeline-header {
	display: contents;
}

.timeline-date {
	grid-column: 1;
	grid-row: 1 / span 2;
	padding-top: 0.3em;
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	font-weight: 500;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--color-text-muted);
}

.timeline-date.ongoing {
	color: var(--color-accent);
}

.timeline-date.ongoing::before {
	content: '';
	display: inline-block;
	width: 6px;
	height: 6px;
	margin-right: 0.6em;
	vertical-align: 0.1em;
	background: var(--color-accent);
	animation: blink 1.6s steps(1) infinite;
}

@keyframes blink {
	50% {
		opacity: 0;
	}
}

.timeline-title {
	grid-column: 2;
	font-size: var(--text-lg);
	font-weight: 600;
	line-height: 1.35;
	letter-spacing: -0.005em;
}

.timeline-desc {
	grid-column: 2;
	font-family: var(--font-mono);
	font-size: 0.8125rem;
	line-height: 1.55;
	color: var(--color-text-secondary);
}

@media (max-width: 560px) {
	.timeline-item {
		grid-template-columns: 1fr;
	}

	.timeline-date,
	.timeline-title,
	.timeline-desc {
		grid-column: 1;
		grid-row: auto;
	}

	.timeline-date {
		padding-top: 0;
	}
}

/* İletişim */
.section-cta {
	padding-bottom: var(--space-16);
}

.cta-card {
	max-width: none;
}

.cta-card h2 {
	padding-bottom: var(--space-6);
	margin-bottom: var(--space-8);
	border-bottom: 1px solid var(--color-line-strong);
}

.cta-card h2::before {
	content: '§ ' counter(section, decimal-leading-zero);
	margin-bottom: var(--space-4);
	color: var(--color-accent);
}

.cta-card p {
	max-width: 56ch;
	color: var(--color-text-secondary);
	font-size: var(--text-lg);
	line-height: 1.7;
	margin-bottom: var(--space-8);
}

.btn-primary {
	display: inline-flex;
	align-items: center;
	gap: var(--space-3);
	padding: var(--space-4) var(--space-6);
	background: var(--color-accent);
	color: var(--color-on-accent);
	border: 1px solid var(--color-accent);
	font-family: var(--font-mono);
	font-size: var(--text-sm);
	font-weight: 500;
	letter-spacing: 0.04em;
	text-decoration: none;
	cursor: pointer;
	overflow-wrap: anywhere;
	transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-primary:hover {
	background: transparent;
	color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
	border-top: 1px solid var(--color-line-strong);
	padding: var(--space-8) 0 var(--space-10);
	font-family: var(--font-mono);
}

.footer-inner {
	display: grid;
	gap: var(--space-6);
}

.footer-links {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-6);
	align-items: center;
	justify-content: space-between;
}

.footer-nav {
	display: flex;
	gap: var(--space-2) var(--space-6);
	flex-wrap: wrap;
}

.footer-nav a {
	color: var(--color-text-secondary);
	font-size: var(--text-xs);
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.footer-nav a:hover {
	color: var(--color-accent);
}

.footer-social {
	display: flex;
}

.footer-social a {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	margin-left: -1px;
	border: 1px solid var(--color-line-strong);
	color: var(--color-text-secondary);
	transition: color var(--transition-fast), background var(--transition-fast);
}

.footer-social a svg {
	width: 14px;
	height: 14px;
}

.footer-social a:hover {
	background: var(--color-text-primary);
	color: var(--color-bg);
}

.footer-bottom {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: var(--space-4);
	flex-wrap: wrap;
	padding-top: var(--space-6);
	border-top: 1px solid var(--color-line);
}

.footer-bottom p {
	color: var(--color-text-muted);
	font-size: var(--text-label);
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.footer-credit {
	color: var(--color-accent) !important;
}

/* Başa Dön Butonu */
.back-to-top {
	position: fixed;
	bottom: 2rem;
	right: max(2rem, calc(50vw - 640px));
	z-index: 99;
	display: flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.6rem 0.9rem;
	border: 1px solid var(--color-line-strong);
	background: var(--color-bg);
	color: var(--color-text-secondary);
	font-family: var(--font-mono);
	font-size: var(--text-label);
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	cursor: pointer;
	opacity: 0;
	visibility: hidden;
	transform: translateY(12px);
	transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease,
		background 0.15s ease, color 0.15s ease;
}

.back-to-top.visible {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.back-to-top:hover {
	background: var(--color-text-primary);
	color: var(--color-bg);
}

@media (max-width: 768px) {
	.back-to-top {
		right: 1rem;
		bottom: 1.5rem;
	}
}

/* --------------------------------------------------------------------------
   Metin sayfaları (Gizlilik, Koşullar)
   -------------------------------------------------------------------------- */
.blog-article {
	padding-top: var(--space-16);
}

.article-container {
	max-width: var(--max-width);
	padding-bottom: var(--space-16);
}

.article-title {
	font-size: clamp(2rem, 6vw, 3.75rem);
	overflow-wrap: break-word;
	hyphens: auto;
}

.prose {
	max-width: 68ch;
	color: var(--color-text-secondary);
}

.prose p,
.prose li {
	font-size: var(--text-base);
	line-height: 1.75;
	margin-bottom: var(--space-4);
}

.prose > p:first-child {
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--color-text-muted);
	margin-bottom: var(--space-8);
}

.prose h2,
.prose h3,
.prose h4 {
	margin: var(--space-10) 0 var(--space-4);
	padding-top: var(--space-3);
	border-top: 1px solid var(--color-line);
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--color-accent);
}

.prose strong {
	color: var(--color-text-primary);
	font-weight: 600;
}

.prose a {
	text-decoration: underline;
	text-underline-offset: 3px;
}

.prose ul,
.prose ol {
	margin-bottom: var(--space-6);
	padding-left: var(--space-6);
}

.prose ul {
	list-style-type: square;
}

.prose ol {
	list-style-type: decimal-leading-zero;
}

.prose ol > li {
	margin-top: var(--space-8);
	padding-left: var(--space-2);
	color: var(--color-text-primary);
}

.prose li::marker {
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	color: var(--color-accent);
}

.article-footer {
	margin-top: var(--space-16);
	padding-top: var(--space-6);
	border-top: 1px solid var(--color-line-strong);
}

.back-link {
	display: inline-flex;
	align-items: center;
	gap: var(--space-2);
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--color-text-secondary);
	transition: color var(--transition-fast), gap var(--transition-fast);
}

.back-link:hover {
	color: var(--color-accent);
	gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   404
   -------------------------------------------------------------------------- */
.page-container {
	display: flex;
	align-items: center;
	min-height: 70vh;
	padding-top: var(--space-16);
	padding-bottom: var(--space-16);
}

.not-found-state {
	width: 100%;
}

.error-code {
	font-size: clamp(6rem, 26vw, 15rem);
	line-height: 0.8;
	padding-bottom: var(--space-4);
	margin-bottom: var(--space-8);
	border-bottom: 1px solid var(--color-line-strong);
}

.error-title {
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	font-weight: 500;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-accent);
	margin-bottom: var(--space-4);
}

.error-desc {
	max-width: 48ch;
	color: var(--color-text-secondary);
	font-size: var(--text-lg);
	margin-bottom: var(--space-8);
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(12px);
	}

	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.animate-fade-in-up {
	animation: fadeInUp 0.5s ease both;
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	*,
	*::before,
	*::after {
		animation: none !important;
		transition: none !important;
	}
}

/* --------------------------------------------------------------------------
   Focus, Selection, Scrollbar
   -------------------------------------------------------------------------- */
:focus-visible {
	outline: 1px solid var(--color-accent);
	outline-offset: 3px;
}

::selection {
	background: var(--color-accent);
	color: var(--color-on-accent);
}

::-webkit-scrollbar {
	width: 8px;
	height: 8px;
}

::-webkit-scrollbar-track {
	background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
	background: var(--color-line-strong);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
	:root {
		--space-6: 1rem;
	}

	body::after {
		inset: 6px;
	}
}

/* --------------------------------------------------------------------------
   Metin sayfası içindeki tablo, düğme ve bağlantılar
   -------------------------------------------------------------------------- */
.prose .timeline {
	margin: var(--space-6) 0 var(--space-8);
}

.prose .timeline-title {
	margin: 0;
	padding: 0;
	border: 0;
	font-family: var(--font-body);
	font-size: var(--text-lg);
	font-weight: 600;
	letter-spacing: -0.005em;
	text-transform: none;
	color: var(--color-text-primary);
}

.prose .btn-primary {
	text-decoration: none;
	margin-top: var(--space-2);
}

.about-profile-content a {
	text-decoration: underline;
	text-underline-offset: 3px;
}

.timeline-desc a {
	text-decoration: underline;
	text-underline-offset: 3px;
}