/* ═══════════════════════════════════════════════════════════
   YAZI TİPLERİ — kendi domainimizden (değişken sürüm)
   Google Fonts CDN'i kaldırıldı: iki ek origin ve iki ek bağlantı
   kurulumu demekti. latin-ext alt kümesi Türkçe karakterler için şart.
═══════════════════════════════════════════════════════════ */
/* Fira Code — latin-ext */
@font-face {
  font-family: 'Fira Code';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('fonts/fira-code-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Fira Code — latin */
@font-face {
  font-family: 'Fira Code';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('fonts/fira-code-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Inter — latin-ext */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url('fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Inter — latin */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url('fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ═══════════════════════════════════════════════════════════
   DESIGN TOKENS
═══════════════════════════════════════════════════════════ */
:root {
    /* Colors */
    --clr-bg: #080d1a;
    --clr-bg-alt: #0d1427;
    --clr-card: #111827;
    --clr-card-alt: #1a2235;
    --clr-border: rgba(255, 255, 255, .07);
    --clr-border-hl: rgba(139, 92, 246, .35);

    --clr-primary: #8b5cf6;
    /* violet */
    --clr-primary-lt: #a78bfa;
    --clr-accent: #06b6d4;
    /* cyan  */
    --clr-green: #10b981;
    --clr-red: #ef4444;
    --clr-yellow: #f59e0b;

    --clr-txt: #f1f5f9;
    --clr-txt-2: #94a3b8;
    --clr-txt-3: #64748b;

    /* Gradients */
    --grad-main: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #06b6d4 100%);
    --grad-card: linear-gradient(145deg, rgba(139, 92, 246, .08) 0%, rgba(6, 182, 212, .04) 100%);
    --grad-glow: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(139, 92, 246, .18) 0%, transparent 70%);

    /* Typography */
    --font: 'Inter', system-ui, sans-serif;
    --font-code: 'Fira Code', monospace;

    /* Spacing */
    --nav-h: 72px;
    --section-gap: 6rem;

    /* Misc */
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 24px rgba(0, 0, 0, .4);
    --shadow-glow: 0 0 40px rgba(139, 92, 246, .25);
    --transition: 0.25s cubic-bezier(.4, 0, .2, 1);
}

[data-theme="light"] {
    --clr-bg: #f8faff;
    --clr-bg-alt: #eef2ff;
    --clr-card: #ffffff;
    --clr-card-alt: #f1f5f9;
    --clr-border: rgba(0, 0, 0, .08);
    --clr-txt: #0f172a;
    --clr-txt-2: #475569;
    --clr-txt-3: #94a3b8;
    --shadow: 0 4px 24px rgba(0, 0, 0, .1);
    --grad-glow: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(139, 92, 246, .1) 0%, transparent 70%);
}

/* ═══════════════════════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════════════════════ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-snap-type: y proximity;
}

body {
    font-family: var(--font);
    background: var(--clr-bg);
    color: var(--clr-txt);
    overflow-x: hidden;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    transition: background var(--transition), color var(--transition);
}

/* Smooth theme transition for every element */
*,
*::before,
*::after {
    transition:
        background-color .35s ease,
        border-color .35s ease,
        color .35s ease,
        box-shadow .35s ease;
}

/* Override for elements that need faster/no inherited transition */
.skill-bar {
    transition: width 1s cubic-bezier(.4, 0, .2, 1) !important;
}

.cursor-dot {
    transition: transform .08s !important;
}

.cursor-ring {
    transition: transform .15s ease, width .2s, height .2s !important;
}

.scroll-progress {
    transition: width .1s linear !important;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input,
textarea {
    font-family: inherit;
}

::selection {
    background: rgba(139, 92, 246, .35);
    color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--clr-primary);
    border-radius: 3px;
}

/* ═══════════════════════════════════════════════════════════
   UTILITY
═══════════════════════════════════════════════════════════ */
.text-gradient {
    background: var(--grad-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-accent {
    color: var(--clr-accent);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .85rem 1.8rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--grad-main);
    color: #fff;
    box-shadow: 0 4px 20px rgba(139, 92, 246, .35);
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0);
    transition: background var(--transition);
}

.btn-primary:hover::after {
    background: rgba(255, 255, 255, .12);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(139, 92, 246, .5);
}

.btn-ghost {
    background: rgba(255, 255, 255, .06);
    color: var(--clr-txt);
    border: 1px solid var(--clr-border);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    background: rgba(139, 92, 246, .15);
    border-color: var(--clr-primary);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ═══════════════════════════════════════════════════════════
   İKONLAR — icons.svg sprite
   Font Awesome'ın yerini aldı: dış origin, render engelleyen CSS ve
   ~100 KB webfont yerine kendi domainimizden tek bir SVG dosyası.
═══════════════════════════════════════════════════════════ */
.ic {
    width: 1em;
    height: 1em;
    /* Yazıyla aynı hizada dursun (FA'nın <i> davranışına denk) */
    vertical-align: -.125em;
    fill: currentColor;
    flex-shrink: 0;
    /* Tema geçişindeki genel transition kuralı buraya sızmasın */
    transition: none;
}

.ic-spin {
    animation: ic-spin 1s linear infinite;
}

@keyframes ic-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ═══════════════════════════════════════════════════════════
   MARKA (üst bar + footer)
═══════════════════════════════════════════════════════════ */
.logo-bracket {
    color: var(--clr-accent);
}

.logo-text {
    background: var(--grad-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ═══════════════════════════════════════════════════════════
   CUSTOM CURSOR
═══════════════════════════════════════════════════════════ */
.cursor-dot,
.cursor-ring {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 99998;
    transition: opacity .3s;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--clr-primary);
    transform: translate(-50%, -50%);
    transition: transform .08s;
}

.cursor-ring {
    width: 36px;
    height: 36px;
    border: 2px solid rgba(139, 92, 246, .5);
    transform: translate(-50%, -50%);
    transition: transform .15s ease, width .2s, height .2s;
}

body:not(:hover) .cursor-dot,
body:not(:hover) .cursor-ring {
    opacity: 0;
}

/* Hide custom cursor when hovering or focusing form elements to prevent visual interference with native caret/selection */
body:has(input:hover, input:focus, textarea:hover, textarea:focus, select:hover, select:focus, [contenteditable="true"]:hover, [contenteditable="true"]:focus) .cursor-dot,
body:has(input:hover, input:focus, textarea:hover, textarea:focus, select:hover, select:focus, [contenteditable="true"]:hover, [contenteditable="true"]:focus) .cursor-ring {
    opacity: 0 !important;
}

@media (pointer:coarse) {

    .cursor-dot,
    .cursor-ring {
        display: none;
    }
}

/* ═══════════════════════════════════════════════════════════
   HEADER / NAV
═══════════════════════════════════════════════════════════ */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-h);
    z-index: 1000;
    background: rgba(8, 13, 26, .7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--clr-border);
    transition: background var(--transition), box-shadow var(--transition);
}

[data-theme="light"] .main-header {
    background: rgba(248, 250, 255, .8);
}

.main-header.scrolled {
    box-shadow: 0 4px 24px rgba(0, 0, 0, .3);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nav-brand {
    font-size: 1.4rem;
    font-weight: 700;
    flex-shrink: 0;
    transition: transform var(--transition);
}

.nav-brand:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: .25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .9rem;
    border-radius: 8px;
    font-size: .875rem;
    font-weight: 500;
    color: var(--clr-txt-2);
    transition: all var(--transition);
    position: relative;
}

.nav-link .ic {
    font-size: .8rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--clr-primary-lt);
    background: rgba(139, 92, 246, .1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--grad-main);
    border-radius: 1px;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.theme-toggle,
.menu-toggle {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--clr-border);
    color: var(--clr-txt-2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    font-size: .9rem;
}

.theme-toggle:hover,
.menu-toggle:hover,
.lang-toggle:hover {
    background: rgba(139, 92, 246, .15);
    border-color: var(--clr-primary);
    color: var(--clr-primary-lt);
}

.lang-toggle {
    width: auto;
    padding: 0 .75rem;
    gap: .35rem;
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .04em;
    color: var(--clr-txt-2);
    transition: all var(--transition);
    background: transparent;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: .75rem;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--clr-txt-2);
    border-radius: 1px;
    transition: all var(--transition);
}

.menu-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.menu-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ═══════════════════════════════════════════════════════════
   SECTIONS — COMMON
═══════════════════════════════════════════════════════════ */
.section {
    min-height: calc(100dvh - var(--nav-h));
    scroll-margin-top: var(--nav-h);
    display: flex;
    flex-direction: column;
    padding: 2rem 0;
    scroll-snap-align: start;
    scroll-snap-stop: normal;
}

.section-container {
    max-width: 1280px;
    margin: auto;
    padding: 0 2rem;
    width: 100%;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-code);
    font-size: .8rem;
    color: var(--clr-primary-lt);
    background: rgba(139, 92, 246, .1);
    border: 1px solid rgba(139, 92, 246, .2);
    padding: .3rem .9rem;
    border-radius: 100px;
    margin-bottom: 1rem;
    letter-spacing: .06em;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: .75rem;
}

.section-sub {
    font-size: 1.05rem;
    color: var(--clr-txt-2);
    max-width: 480px;
    margin: 0 auto;
}

/* ═══════════════════════════════════════════════════════════
   SCROLL ANIMATIONS
═══════════════════════════════════════════════════════════ */
/* Varsayılan: içerik görünür. Gizleme yalnızca JS etkinken (html.js) uygulanır,
   böylece JS çalışmadığında sayfa boş kalmaz. */
.js .reveal-up,
.js .reveal-left,
.js .reveal-right {
    opacity: 0;
    transition: opacity .7s ease, transform .7s ease;
    transition-delay: var(--rd, 0s);
}

.js .reveal-up {
    transform: translateY(40px);
}

.js .reveal-left {
    transform: translateX(-50px);
}

.js .reveal-right {
    transform: translateX(50px);
}

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: translate(0);
}

/* ═══════════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════════ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--nav-h);
    scroll-snap-align: start;
    scroll-snap-stop: normal;
}

.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: .6;
}

.hero-glow-1,
.hero-glow-2 {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.hero-glow-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -100px;
    background: radial-gradient(circle, rgba(139, 92, 246, .18) 0%, transparent 70%);
    animation: floating 8s ease-in-out infinite;
}

.hero-glow-2 {
    width: 500px;
    height: 500px;
    bottom: -200px;
    left: -100px;
    background: radial-gradient(circle, rgba(6, 182, 212, .14) 0%, transparent 70%);
    animation: floating 10s ease-in-out infinite reverse;
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 4rem 2rem;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

/* Content */
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    font-size: .85rem;
    font-weight: 500;
    color: var(--clr-accent);
    background: rgba(6, 182, 212, .1);
    border: 1px solid rgba(6, 182, 212, .25);
    padding: .4rem 1rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
}

.tag-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--clr-accent);
    animation: pulse 2s infinite;
}

.hero-greeting {
    font-size: 1.1rem;
    color: var(--clr-txt-2);
    margin-bottom: .5rem;
    font-weight: 500;
}

.hero-name {
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.name-main {
    background: var(--grad-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.name-semi {
    color: var(--clr-accent);
    font-family: var(--font-code);
}

.hero-role {
    display: flex;
    align-items: center;
    gap: .4rem;
    font-family: var(--font-code);
    font-size: 1.1rem;
    color: var(--clr-txt-2);
    margin-bottom: 1.5rem;
}

.role-prefix {
    color: var(--clr-primary);
}

.role-text {
    color: var(--clr-txt);
}

.role-cursor {
    color: var(--clr-primary);
    animation: blink 1s step-end infinite;
    font-weight: 300;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--clr-txt-2);
    max-width: 520px;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.hero-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.hero-social {
    display: flex;
    gap: .75rem;
}

.social-link {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-txt-2);
    font-size: 1rem;
    transition: all var(--transition);
}

.social-link:hover {
    background: rgba(139, 92, 246, .2);
    border-color: var(--clr-primary);
    color: var(--clr-primary-lt);
    transform: translateY(-3px);
}

/* Profile visual */
.profile-wrap {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid transparent;
    background: var(--grad-main) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    animation: spin 12s linear infinite;
}

.ring-2 {
    inset: 16px;
    border: 1px solid rgba(6, 182, 212, .25);
    animation-duration: 8s;
    animation-direction: reverse;
}

.profile-avatar {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: var(--clr-card);
    border: 2px solid var(--clr-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--clr-primary);
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-glow);
}

.profile-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: .4rem;
    background: var(--clr-card);
    border: 1px solid var(--clr-border-hl);
    padding: .45rem .9rem;
    border-radius: 100px;
    font-size: .8rem;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: var(--shadow);
    animation: badgeFloat 4s ease-in-out infinite;
    z-index: 2;
}

.profile-badge .ic {
    font-size: 1rem;
}

/* Badge positions & brand colours */
.badge-java {
    top: 10px;
    right: -20px;
    animation-delay: 0s;
    color: #f89820;
}

/* Java orange   */
.badge-dotnet {
    bottom: 30px;
    left: -30px;
    animation-delay: 1.4s;
    color: #9b4dca;
}

/* .NET purple   */
.badge-react {
    bottom: -10px;
    right: 10px;
    animation-delay: .7s;
    color: #61DAFB;
}

/* React cyan    */

/* Avatar initials */
.avatar-initials {
    font-family: var(--font);
    font-size: 2.8rem;
    font-weight: 900;
    background: var(--grad-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: .05em;
    line-height: 1;
    user-select: none;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .5rem;
    color: var(--clr-txt-3);
    font-size: .78rem;
    letter-spacing: .05em;
    animation: fadeInUp .8s ease .5s both;
    z-index: 1;
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, var(--clr-primary));
    border-radius: 1px;
    animation: scrollPulse 2s ease-in-out infinite;
}

/* ═══════════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════════ */
.about-section {
    background: var(--clr-bg-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--clr-txt-2);
    margin-bottom: 1.2rem;
    font-size: 1.02rem;
}

.about-text strong {
    color: var(--clr-txt);
}

.about-meta {
    display: flex;
    flex-direction: column;
    gap: .7rem;
    margin-top: 1.5rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: .75rem;
    color: var(--clr-txt-2);
    font-size: .95rem;
}

.meta-item .ic {
    color: var(--clr-primary);
    width: 16px;
    text-align: center;
}

.about-stats-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.stat-card {
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-card);
    opacity: 0;
    transition: opacity var(--transition);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card:hover {
    border-color: var(--clr-border-hl);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.stat-num {
    font-size: 2.8rem;
    font-weight: 900;
    background: var(--grad-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    display: inline-block;
}

.stat-plus {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--clr-primary);
    display: inline-block;
}

.stat-label {
    font-size: .85rem;
    color: var(--clr-txt-2);
    margin-top: .5rem;
    line-height: 1.4;
}

/* ═══════════════════════════════════════════════════════════
   SKILLS
═══════════════════════════════════════════════════════════ */
.skills-section {
    padding-left: 0;
    padding-right: 0;
}

.skills-section .section-container {
    width: 100%;
}

.skills-tabs {
    display: flex;
    gap: .5rem;
    justify-content: center;
    margin-bottom: 3rem;
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: .4rem;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.skills-tab {
    padding: .55rem 1.4rem;
    border-radius: 8px;
    font-size: .9rem;
    font-weight: 500;
    color: var(--clr-txt-2);
    transition: all var(--transition);
}

.skills-tab.active {
    background: var(--grad-main);
    color: #fff;
    box-shadow: 0 2px 12px rgba(139, 92, 246, .4);
}

.skills-tab:hover:not(.active) {
    background: rgba(139, 92, 246, .1);
    color: var(--clr-primary-lt);
}

.skills-panel {
    display: none;
}

.skills-panel.active {
    display: block;
}

.skill-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.skill-card {
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1.2rem 1.4rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition);
}

.skill-card:hover {
    border-color: var(--clr-border-hl);
    background: var(--clr-card-alt);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, .2);
}

.skill-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(var(--ic, 139 92 246) / .12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--ic);
    flex-shrink: 0;
}

.skill-info {
    flex: 1;
    min-width: 0;
}

.skill-name {
    display: block;
    font-weight: 600;
    font-size: .95rem;
}

.skill-level {
    display: block;
    font-size: .78rem;
    color: var(--clr-txt-3);
}

.skill-bar-wrap {
    width: 80px;
    height: 5px;
    background: var(--clr-card-alt);
    border-radius: 3px;
    overflow: hidden;
    flex-shrink: 0;
}

.skill-bar {
    height: 100%;
    width: 0%;
    background: var(--grad-main);
    border-radius: 3px;
    transition: width 1s cubic-bezier(.4, 0, .2, 1);
}

/* ═══════════════════════════════════════════════════════════
   EXPERIENCE
═══════════════════════════════════════════════════════════ */
.experience-section {
    background: var(--clr-bg-alt);
}

.timeline {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    display: flex;
    flex-wrap: nowrap;
    gap: 1.5rem;
    padding-bottom: 2rem;
    transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.timeline::-webkit-scrollbar {
    height: 6px;
}

.timeline::-webkit-scrollbar-track {
    background: rgba(139, 92, 246, 0.05);
    border-radius: 4px;
}

.timeline::-webkit-scrollbar-thumb {
    background: var(--clr-primary);
    border-radius: 4px;
}



.timeline-item {
    position: relative;
    /* Show precisely 2 cards per view considering 1.5rem gap */
    flex: 0 0 calc((100% - 1.5rem) / 2);
    min-width: 0;
    margin-top: 48px;
    align-self: stretch;
}

/* CAROUSEL BUTTONS & WRAPPER */
.carousel-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.carousel-container {
    overflow: hidden;
    width: 100%;
    position: relative;
    /* Keep padding constraints inside track */
}

/* Timeline yatay çizgisi — carousel'dan bağımsız, sabit konumda kalır */
.carousel-container::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 16px;
    height: 2px;
    background: linear-gradient(to right, var(--clr-primary), rgba(139, 92, 246, 0.1));
    z-index: 1;
    pointer-events: none;
}

.carousel-btn {
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    color: var(--clr-txt);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    flex-shrink: 0;
    z-index: 10;
}

.carousel-btn:hover:not(:disabled) {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
    transform: scale(1.05);
    background: rgba(139, 92, 246, 0.05);
}

.carousel-btn:disabled {
    opacity: 0.3;
    pointer-events: none;
}

.timeline-dot {
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--clr-primary);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, .2);
    top: -39px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-card {
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 1.8rem;
    transition: all var(--transition);
    height: 100%;
}

.timeline-card:hover {
    border-color: var(--clr-border-hl);
    box-shadow: var(--shadow-glow);
    transform: translateY(-3px);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tl-role {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: .3rem;
}

.tl-company {
    font-size: .88rem;
    color: var(--clr-txt-2);
    display: flex;
    align-items: center;
    gap: .4rem;
}

.tl-company .ic {
    color: var(--clr-primary);
}

.tl-date {
    font-size: .8rem;
    color: var(--clr-txt-3);
    font-family: var(--font-code);
    display: flex;
    align-items: center;
    gap: .35rem;
    white-space: nowrap;
}

.tl-type {
    display: inline-block;
    font-size: .72rem;
    padding: .2rem .7rem;
    border-radius: 100px;
    background: rgba(139, 92, 246, .15);
    color: var(--clr-primary-lt);
    font-weight: 600;
    align-self: flex-start;
}

.tl-desc {
    font-size: .92rem;
    color: var(--clr-txt-2);
    margin-bottom: 1.2rem;
    line-height: 1.7;
}

.tl-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.tl-tags span {
    font-size: .75rem;
    font-family: var(--font-code);
    padding: .2rem .7rem;
    border-radius: 6px;
    background: rgba(6, 182, 212, .1);
    color: var(--clr-accent);
    border: 1px solid rgba(6, 182, 212, .2);
}

/* ═══════════════════════════════════════════════════════════
   PROJECTS
═══════════════════════════════════════════════════════════ */
.projects-filter {
    display: flex;
    gap: .5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: .5rem 1.3rem;
    border-radius: 100px;
    font-size: .875rem;
    font-weight: 500;
    color: var(--clr-txt-2);
    border: 1px solid var(--clr-border);
    background: transparent;
    transition: all var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--grad-main);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 12px rgba(139, 92, 246, .35);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.project-card {
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.project-card.hidden {
    display: none;
}

.project-card:hover {
    border-color: var(--clr-border-hl);
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, .3);
}

.project-img {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.project-img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, color-mix(in srgb, var(--ph) 30%, #0d1427) 0%, color-mix(in srgb, var(--ph) 15%, #111827) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    color: var(--ph);
    opacity: .7;
    transition: transform var(--transition);
}

.project-card:hover .project-img-placeholder {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(8, 13, 26, .85);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.proj-link {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
    transition: all var(--transition);
    transform: translateY(10px);
}

.project-card:hover .proj-link {
    transform: translateY(0);
}

.proj-link:hover {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
}

.project-body {
    padding: 1.5rem;
}

.project-type {
    font-size: .75rem;
    font-weight: 600;
    color: var(--clr-primary-lt);
    text-transform: uppercase;
    letter-spacing: .07em;
    margin-bottom: .5rem;
}

.project-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: .6rem;
}

.project-desc {
    font-size: .88rem;
    color: var(--clr-txt-2);
    margin-bottom: 1rem;
    line-height: 1.65;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.project-tech span {
    font-size: .73rem;
    font-family: var(--font-code);
    padding: .2rem .65rem;
    border-radius: 5px;
    background: rgba(139, 92, 246, .1);
    color: var(--clr-primary-lt);
    border: 1px solid rgba(139, 92, 246, .15);
}

/* ═══════════════════════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════════════════════ */
.contact-section {
    background: var(--clr-bg-alt);
    min-height: auto;
    padding-top: 3.5rem;
    padding-bottom: 2.5rem;
    overflow: visible;
}

.contact-section .section-container {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
}

.contact-section .section-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.contact-section .section-tag {
    display: inline-block;
    margin-bottom: 0.85rem;
    position: relative;
    z-index: 2;
}

.contact-section .section-title {
    margin-bottom: 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 2.5rem;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: .8rem;
}

.contact-info>p {
    color: var(--clr-txt-2);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.2rem;
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.contact-item:hover {
    border-color: var(--clr-border-hl);
    background: var(--clr-card-alt);
    transform: translateX(4px);
}

.ci-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(139, 92, 246, .15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary-lt);
    font-size: 1rem;
    flex-shrink: 0;
}

.ci-text {
    display: flex;
    flex-direction: column;
}

.ci-label {
    font-size: .75rem;
    color: var(--clr-txt-3);
}

.ci-value {
    font-size: .9rem;
    font-weight: 500;
}

.contact-form-wrap {
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

/* Honeypot — görünür alan değil; display:none yerine ekran dışına alınıyor,
   çünkü botların bir kısmı display:none alanları atlıyor. */
.hp-field {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

.form-group label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    color: var(--clr-txt-2);
    margin-bottom: .4rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: .8rem 1rem;
    color: var(--clr-txt);
    font-size: .95rem;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, .15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--clr-txt-3);
}

.form-success {
    display: none;
    align-items: center;
    gap: .6rem;
    margin-top: 1rem;
    padding: .8rem 1rem;
    background: rgba(16, 185, 129, .1);
    border: 1px solid rgba(16, 185, 129, .25);
    border-radius: var(--radius);
    color: var(--clr-green);
    font-size: .9rem;
    font-weight: 500;
}

.form-success.show {
    display: flex;
}

/* ═══════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════ */
.main-footer {
    background: var(--clr-bg);
    border-top: 1px solid var(--clr-border);
    padding: 2rem 0;
    scroll-snap-align: end;
    scroll-snap-stop: normal;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    font-size: 1.2rem;
    font-weight: 700;
}

.footer-copy {
    font-size: .87rem;
    color: var(--clr-txt-3);
}

.footer-social {
    display: flex;
    gap: .5rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-txt-3);
    font-size: .9rem;
    transition: all var(--transition);
}

.footer-social a:hover {
    background: rgba(139, 92, 246, .15);
    border-color: var(--clr-primary);
    color: var(--clr-primary-lt);
    transform: translateY(-2px);
}

/* Back to top */
.back-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--grad-main);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: 0 4px 20px rgba(139, 92, 246, .4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition);
    z-index: 900;
}

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

.back-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 28px rgba(139, 92, 246, .6);
}

/* ═══════════════════════════════════════════════════════════
   KEYFRAMES
═══════════════════════════════════════════════════════════ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

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

@keyframes blink {

    0%,
    100% {
        opacity: 1
    }

    50% {
        opacity: 0
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1)
    }

    50% {
        opacity: .5;
        transform: scale(.8)
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg)
    }

    to {
        transform: rotate(360deg)
    }
}

@keyframes floating {

    0%,
    100% {
        transform: translateY(0)
    }

    50% {
        transform: translateY(-30px)
    }
}

@keyframes badgeFloat {

    0%,
    100% {
        transform: translateY(0) rotate(-2deg)
    }

    50% {
        transform: translateY(-8px) rotate(2deg)
    }
}

@keyframes scrollPulse {

    0%,
    100% {
        opacity: .3;
        transform: scaleY(.8)
    }

    50% {
        opacity: 1;
        transform: scaleY(1)
    }
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════ */
@media (max-width:1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-visual {
        order: 1;
        display: flex;
        justify-content: center;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-btns {
        justify-content: center;
    }

    .hero-social {
        justify-content: center;
    }

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

    /* Ensure Carousel stays horizontal on Tablet */
    .timeline {
        padding-bottom: 2rem;
    }

    .timeline::before {
        top: 16px;
        left: 0;
        bottom: auto;
        width: 100%;
        height: 2px;
        transform: none;
        background: linear-gradient(to right, var(--clr-primary), transparent);
    }

    .timeline-item {
        margin-left: 0 !important;
        margin-top: 48px;
        width: auto;
        /* Stay 2 cards per row on Tablet */
        flex: 0 0 calc((100% - 1.5rem) / 2);
        align-self: stretch !important;
    }

    .timeline-dot {
        top: -39px;
        left: 50% !important;
        right: auto;
        transform: translateX(-50%);
    }

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

@media (max-width:768px) {
    :root {
        --section-gap: 4rem;
    }

    .timeline-item {
        /* Mobile: 1 card strictly */
        flex: 0 0 100%;
    }

    .nav-menu {
        position: fixed;
        top: var(--nav-h);
        left: 0;
        right: 0;
        background: rgba(8, 13, 26, .96);
        backdrop-filter: blur(24px);
        flex-direction: column;
        padding: 1.5rem;
        gap: .5rem;
        border-bottom: 1px solid var(--clr-border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
    }

    [data-theme="light"] .nav-menu {
        background: rgba(248, 250, 255, .97);
    }

    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-link {
        padding: .75rem 1rem;
        width: 100%;
    }

    .menu-toggle {
        display: flex;
    }

    /* Dar ekranda 2rem'lik yan boşluk kontrolleri sağa taşırıyordu */
    .nav-container {
        padding: 0 1rem;
        gap: .5rem;
    }

    .nav-brand {
        font-size: 1.25rem;
        min-width: 0;
    }

    .nav-controls {
        flex-shrink: 0;
        gap: .35rem;
    }

    .hero-name {
        font-size: 2.5rem;
    }

    .profile-wrap {
        width: 240px;
        height: 240px;
    }

    .profile-avatar {
        width: 170px;
        height: 170px;
        font-size: 3.5rem;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skill-cards {
        grid-template-columns: 1fr;
    }

    .about-stats-panel {
        grid-template-columns: 1fr 1fr;
    }

    .footer-container {
        justify-content: center;
        text-align: center;
    }
}

/* ═══════════════════════════════════════════════════════════
   VOLUNTEER GRID
═══════════════════════════════════════════════════════════ */
.volunteer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 1.25rem;
}

.volunteer-card {
    display: flex;
    gap: 1.2rem;
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition);
}

.volunteer-card:hover {
    border-color: var(--clr-border-hl);
    background: var(--clr-card-alt);
    transform: translateY(-3px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, .2);
}

.vol-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(139, 92, 246, .15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary-lt);
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: .15rem;
}

.vol-body {
    flex: 1;
}

.vol-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: .2rem;
}

.vol-org {
    font-size: .82rem;
    color: var(--clr-primary-lt);
    font-weight: 600;
    margin-bottom: .5rem;
}

.vol-desc {
    font-size: .87rem;
    color: var(--clr-txt-2);
    line-height: 1.6;
    margin-bottom: .6rem;
}

.vol-date {
    font-size: .76rem;
    color: var(--clr-txt-3);
    font-family: var(--font-code);
    display: flex;
    align-items: center;
    gap: .35rem;
}

.vol-date .ic {
    color: var(--clr-primary);
}

/* ═══════════════════════════════════════════════════════════
   CERTIFICATIONS
═══════════════════════════════════════════════════════════ */
.certifications-section {
    padding-bottom: 6rem;
    overflow: visible;
}

.certifications-section .section-header {
    margin-bottom: 1.5rem;
}

.certifications-section .section-sub:empty {
    display: none;
}

.certs-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
}

.certs-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--grad-main);
    border-radius: 2px;
    margin: .6rem auto 0;
}

.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

.cert-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1.1rem 1.3rem;
    transition: all var(--transition);
}

.cert-card:hover {
    border-color: var(--clr-border-hl);
    background: var(--clr-card-alt);
    transform: translateY(-2px);
    box-shadow: 0 4px 18px rgba(0, 0, 0, .2);
}

.cert-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(139, 92, 246, .15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary-lt);
    font-size: 1rem;
    flex-shrink: 0;
}

.cert-info {
    display: flex;
    flex-direction: column;
    gap: .2rem;
}

.cert-name {
    font-size: .88rem;
    font-weight: 600;
    line-height: 1.4;
}

.cert-date {
    font-size: .75rem;
    color: var(--clr-txt-3);
    font-family: var(--font-code);
}

/* ═══════════════════════════════════════════════════════════
   VOLUNTEER SECTION (inline in about)
═══════════════════════════════════════════════════════════ */

@media (max-width:480px) {

    /* 360px sınıfı telefonlarda üst bar: marka + 3 kontrol sığmalı,
       menü butonu ekranın dışında kalmamalı */
    .nav-container {
        padding: 0 .75rem;
        gap: .35rem;
    }

    .nav-brand {
        font-size: 1.1rem;
    }

    .lang-toggle {
        padding: 0 .5rem;
        font-size: .75rem;
    }

    .theme-toggle,
    .menu-toggle {
        width: 38px;
        height: 38px;
    }

    .menu-toggle {
        padding: .6rem;
    }

    .hero-name {
        font-size: 2.1rem;
    }

    .hero-btns {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-btns .btn {
        justify-content: center;
    }

    .about-stats-panel {
        grid-template-columns: 1fr;
    }

    .skills-tabs {
        flex-wrap: wrap;
    }

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

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

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

/* ═══════════════════════════════════════════════════════════
   3D PROJECT CARD TILT
═══════════════════════════════════════════════════════════ */
.projects-grid {
    perspective: 1200px;
}

.project-card {
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform .35s ease, border-color var(--transition), box-shadow var(--transition);
}

.project-card:hover {
    border-color: var(--clr-border-hl);
    box-shadow: 0 20px 60px rgba(139, 92, 246, .25);
}

/* GitHub star badge */
.star-badge {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .72rem;
    font-family: var(--font-code);
    color: var(--clr-yellow);
    background: rgba(245, 158, 11, .12);
    border: 1px solid rgba(245, 158, 11, .25);
    border-radius: 100px;
    padding: .15rem .6rem;
    margin-left: auto;
}

.star-badge .ic {
    font-size: .7rem;
}

/* ═══════════════════════════════════════════════════════════
   PREFERS-REDUCED-MOTION (accessibility)
═══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }

    .hero-canvas {
        display: none;
    }

    .cursor-dot,
    .cursor-ring {
        display: none;
    }
}

/* ═══════════════════════════════════════════════════════════
   TOAST NOTIFICATIONS
═══════════════════════════════════════════════════════════ */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    z-index: 10000;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .85rem 1.2rem;
    border-radius: var(--radius);
    font-size: .9rem;
    font-weight: 500;
    box-shadow: 0 8px 32px rgba(0, 0, 0, .4);
    backdrop-filter: blur(12px);
    border: 1px solid transparent;
    opacity: 0;
    transform: translateX(120%);
    transition: opacity .35s ease, transform .35s cubic-bezier(.34, 1.56, .64, 1);
    pointer-events: auto;
    min-width: 260px;
    max-width: 360px;
}

.toast-success {
    background: rgba(16, 185, 129, .15);
    border-color: rgba(16, 185, 129, .3);
    color: #10b981;
}

.toast-error {
    background: rgba(239, 68, 68, .15);
    border-color: rgba(239, 68, 68, .3);
    color: #ef4444;
}

.toast-info {
    background: rgba(139, 92, 246, .15);
    border-color: rgba(139, 92, 246, .3);
    color: var(--clr-primary-lt);
}

.toast.toast-show {
    opacity: 1;
    transform: translateX(0);
}

.toast .ic {
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   SKELETON SHIMMER (GitHub API loading state)
═══════════════════════════════════════════════════════════ */
@keyframes shimmer {
    0% {
        background-position: -400px 0;
    }

    100% {
        background-position: 400px 0;
    }
}

.skeleton {
    border-radius: 6px;
    background: linear-gradient(90deg,
            var(--clr-card) 0%,
            var(--clr-card-alt) 50%,
            var(--clr-card) 100%);
    background-size: 800px 100%;
    animation: shimmer 1.4s infinite linear;
}