/* ============================================
   Siliconmade Academy - Ana Stiller
   ============================================ */

/* --- CSS Değişkenleri --- */
:root {
    /* Sabit değerler */
    --accent: #D22930;
    --accent-hover: #E8343B;
    --accent-glow: rgba(210, 41, 48, 0.15);
    --font-heading: 'Sora', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --container-max: 1200px;
    --container-padding: 0 24px;
    --section-padding: 120px 0;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-pill: 50px;
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* --- Açık Tema (Default) --- */
[data-theme="light"] {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F6FA;
    --bg-card: rgba(0, 0, 0, 0.02);
    --border-card: rgba(0, 0, 0, 0.08);
    --text-heading: #1a1f38;
    --text-body: #4a5068;
    --text-subtle: #8890a8;
    --navbar-bg: rgba(255, 255, 255, 0.92);
    --navbar-shadow: rgba(0, 0, 0, 0.06);
    --terminal-bg: #1a1f38;
    --logo-filter: none;
    --partner-filter: brightness(0) saturate(100%);
}

/* --- Koyu Tema --- */
[data-theme="dark"] {
    --bg-primary: #222945;
    --bg-secondary: #1a1f38;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border-card: rgba(255, 255, 255, 0.08);
    --text-heading: #FFFFFF;
    --text-body: #B8BDD4;
    --text-subtle: #6B7194;
    --navbar-bg: rgba(26, 31, 56, 0.95);
    --navbar-shadow: rgba(0, 0, 0, 0.3);
    --terminal-bg: #0d1117;
    --logo-filter: brightness(0) invert(1);
    --partner-filter: brightness(0) invert(1);
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-body);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* --- Tipografi --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-heading);
    line-height: 1.1;
    font-weight: 700;
}
h1 { font-size: clamp(48px, 7vw, 96px); font-weight: 800; }
h2 { font-size: clamp(32px, 4vw, 56px); }
h3 { font-size: clamp(20px, 2.5vw, 28px); }
h4 { font-size: clamp(18px, 2vw, 24px); }
p { margin-bottom: 1em; }
.accent { color: var(--accent); }

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--container-padding);
}
section {
    padding: var(--section-padding);
    position: relative;
    z-index: 2;
}

/* --- Butonlar --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    padding: 14px 32px;
    border-radius: var(--border-radius-pill);
    transition: all var(--transition-base);
    cursor: pointer;
    text-decoration: none;
}
.btn-primary {
    background-color: var(--accent);
    color: #FFFFFF;
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 8px 32px var(--accent-glow);
    transform: translateY(-2px);
}

/* --- Section Başlıklar --- */
.section-title { text-align: center; margin-bottom: 16px; line-height: 1.25; padding-top: 0.12em; }
.section-subtitle { text-align: center; color: var(--text-subtle); font-size: 18px; margin-bottom: 60px; }
.gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--text-heading));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Theme Toggle Button --- */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-body);
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    cursor: pointer;
    transition: all var(--transition-base);
    margin-left: 12px;
    flex-shrink: 0;
}
.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

/* --- Erişilebilirlik --- */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
::selection { background-color: var(--accent); color: #FFFFFF; }


/* ========== NAVBAR ========== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    background: #1a1f38;
    transition: padding var(--transition-base), box-shadow var(--transition-base);
}
#navbar.scrolled {
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}
.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.navbar-logo img {
    height: 36px;
    width: auto;
    filter: none;
}
.navbar-menu {
    display: flex;
    gap: 36px;
}
.navbar-menu a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 15px;
    color: #B8BDD4;
    transition: color var(--transition-fast);
    position: relative;
}
.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition-base);
}
.navbar-menu a:hover { color: #fff; }
.navbar-cta { font-size: 14px; padding: 10px 24px; }
.navbar-toggle { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.navbar-toggle span {
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--navbar-bg);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}
.mobile-menu-overlay.active { opacity: 1; pointer-events: all; }
.mobile-menu-list { text-align: center; }
.mobile-menu-list li { margin-bottom: 32px; }
.mobile-menu-list a {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--text-heading);
    transition: color var(--transition-fast);
}
.mobile-menu-list a:hover { color: var(--accent); }


/* ========== HERO BANNER (v4 video) ========== */
#hero.hero-banner {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    max-height: 980px;
    padding: 0;
    margin-top: 0;
    overflow: hidden;
    background: #0A1628;
    display: block;
}
.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}
#hero.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        90deg,
        rgba(10, 22, 40, 0.82) 0%,
        rgba(10, 22, 40, 0.45) 45%,
        rgba(10, 22, 40, 0.35) 70%,
        rgba(10, 22, 40, 0.65) 100%
    );
    pointer-events: none;
}
.hero-wrap {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    height: 100%;
    width: 100%;
    padding: 80px clamp(1.5rem, 4.5vw, 5rem) clamp(1rem, 4vw, 3rem);
}
#hero .hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    color: #fff;
    padding: 0;
    background: none;
    flex: 0 1 auto;
    max-width: 540px;
}

/* Başvuru formu kartı (hero sağ) — frosted glass */
.hero-form-card {
    background: rgba(10, 22, 40, 0.68);
    border: 1px solid rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 14px;
    padding: clamp(1.25rem, 2.2vw, 2rem);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    color: #fff;
    flex: 0 1 auto;
    width: 100%;
    max-width: 440px;
}
.hero-form-title {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 1.8vw, 1.6rem);
    font-weight: 700;
    margin: 0 0 .35rem;
    color: #fff;
    letter-spacing: -0.01em;
}
.hero-form-subtitle {
    font-size: .9rem;
    color: rgba(255, 255, 255, 0.78);
    margin: 0 0 1.25rem;
    line-height: 1.4;
}
.hero-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .75rem;
}
.hero-form-field {
    margin-bottom: .85rem;
}
.hero-form-field label {
    display: block;
    font-size: .78rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: .3rem;
    letter-spacing: 0.01em;
}
.hero-form-field input:not([type="checkbox"]):not([type="submit"]) {
    width: 100%;
    padding: .6rem .85rem;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 6px;
    color: #fff;
    font-size: .95rem;
    font-family: inherit;
    outline: none;
    transition: border-color .15s, background .15s;
}
.hero-form-field input:focus {
    border-color: #E63946;
    background: rgba(255, 255, 255, 0.11);
}
.hero-form-field input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}
/* intl-tel-input dark bg uyumu + flag/dial code overlap fix */
.hero-form .iti { width: 100%; }
.hero-form .phone-field { padding-left: 54px !important; }
.hero-form .iti__country-list {
    background: #1a1f38;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
}
.hero-form .iti__country:hover,
.hero-form .iti__country.iti__highlight {
    background: rgba(230, 57, 70, 0.22);
}
.hero-form-check {
    display: flex;
    align-items: flex-start;
    gap: .55rem;
    font-size: .78rem;
    color: rgba(255, 255, 255, 0.85);
    margin: .5rem 0;
    cursor: pointer;
    line-height: 1.45;
}
.hero-form-check input[type="checkbox"] {
    margin-top: 2px;
    accent-color: #E63946;
    flex-shrink: 0;
    width: 15px;
    height: 15px;
    cursor: pointer;
}
.hero-form-check a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.hero-form-check a:hover { color: #E63946; }
.hero-form-submit {
    display: block;
    width: 100%;
    background: #E63946;
    color: #fff;
    border: none;
    padding: .85rem 1.2rem;
    border-radius: 6px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background .15s, transform .15s;
    margin-top: .9rem;
}
.hero-form-submit:hover:not(:disabled) {
    background: #cc2d3a;
    transform: translateY(-1px);
}
.hero-form-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}
.hero-eyebrow {
    font-family: var(--font-heading);
    font-size: clamp(.75rem, 1.2vw, .95rem);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #E63946;
    margin: 0 0 .75rem;
}
#hero .hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.25rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.02;
    margin: 0 0 1rem;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.55);
    color: #fff;
    display: flex;
    flex-direction: column;
    gap: 0;
}
#hero .hero-title span {
    display: block;
}
/* Typewriter variant: tek satır, iki satırlık yükseklik rezerve eder */
#hero .hero-title--typewriter {
    display: block;
    min-height: calc(1.02em * 2 + 0.1em);
}
#hero .hero-title--typewriter .typewriter-text {
    display: inline;
}
#hero .hero-title--typewriter .typewriter-cursor {
    display: inline-block;
    width: 0.06em;
    height: 0.9em;
    margin-left: 0.08em;
    background: #E63946;
    vertical-align: baseline;
    animation: heroTypeBlink 1s step-end infinite;
}
@keyframes heroTypeBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
    #hero .hero-title--typewriter .typewriter-cursor { display: none; }
}
.hero-subtitle {
    font-size: clamp(1rem, 1.6vw, 1.35rem);
    margin: 0;
    opacity: 0.92;
    max-width: 40ch;
    line-height: 1.55;
}
.hero-subtitle span {
    display: block;
}
@media (prefers-reduced-motion: reduce) {
    .hero-video { display: none; }
    #hero.hero-banner {
        background: #0A1628 url('../hero-poster.jpg') center / cover no-repeat;
    }
}

/* Mobil başvuru formu varsayılan: tablet+ üstünde gizli */
#mobile-apply { display: none; }


/* ========== MOBİL BAŞVURU FORMU (eğitim takvimi altı) ========== */
.mobile-apply-card {
    background: linear-gradient(180deg, #0A1628 0%, #1a1f38 100%);
    border-radius: 16px;
    padding: 28px 20px 24px;
    color: #fff;
    box-shadow: 0 12px 40px rgba(10, 22, 40, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.mobile-apply-title {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 6px;
    color: #fff;
    text-align: center;
    letter-spacing: -0.01em;
}
.mobile-apply-subtitle {
    text-align: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.78);
    margin: 0 0 20px;
    line-height: 1.45;
}
.mobile-apply-field {
    margin-bottom: 14px;
}
.mobile-apply-field label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: 6px;
}
.mobile-apply-field input:not([type="checkbox"]):not([type="submit"]) {
    width: 100%;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    color: #fff;
    font-size: 16px; /* iOS auto-zoom engelle */
    font-family: inherit;
    outline: none;
    transition: border-color .15s, background .15s;
}
.mobile-apply-field input:focus {
    border-color: #E63946;
    background: rgba(255, 255, 255, 0.12);
}
.mobile-apply-form .iti { width: 100%; }
.mobile-apply-form .phone-field { padding-left: 58px !important; }
.mobile-apply-form .iti__country-list {
    background: #1a1f38;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
}
.mobile-apply-form .iti__country:hover,
.mobile-apply-form .iti__country.iti__highlight {
    background: rgba(230, 57, 70, 0.22);
}
.mobile-apply-check {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
    margin: 10px 0;
    line-height: 1.45;
}
.mobile-apply-check input[type="checkbox"] {
    margin-top: 2px;
    accent-color: #E63946;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}
.mobile-apply-check a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.mobile-apply-submit {
    display: block;
    width: 100%;
    background: #E63946;
    color: #fff;
    border: none;
    padding: 14px 20px;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: background .15s;
    margin-top: 14px;
}
.mobile-apply-submit:hover:not(:disabled) { background: #cc2d3a; }
.mobile-apply-submit:disabled { opacity: 0.65; cursor: not-allowed; }


/* ========== PARTNERS ========== */
#partners { padding: 40px 0 80px; }
.partners-label {
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-subtle);
    margin-bottom: 24px;
}
.partners-logos {
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.partners-track {
    display: flex;
    gap: 60px;
    align-items: center;
    width: max-content;
}
.partners-track img {
    height: 32px;
    width: auto;
    opacity: 0.5;
    filter: var(--partner-filter);
    transition: opacity var(--transition-base);
}
.partners-track img:hover { opacity: 0.8; }


/* ========== COURSES ========== */
#courses { background: var(--bg-secondary); }
.d-none { display: none !important; }

/* Filter tabs */
.courses-filter-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 0 auto 40px;
    padding: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 999px;
    width: fit-content;
    max-width: 100%;
}
.filter-btn {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-body);
    background: transparent;
    border: none;
    padding: 10px 22px;
    border-radius: 999px;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
}
.filter-btn:hover { color: var(--text-heading); }
.filter-btn.active {
    background: var(--accent);
    color: #fff;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 10px 0;
}
.course-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    min-width: 0;
    max-width: 100%;
}
.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px var(--accent-glow);
}
.course-card-img {
    height: 160px;
    overflow: hidden;
}
.course-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.course-card:hover .course-card-img img {
    transform: scale(1.08);
}
.course-card-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
}
.course-card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.3;
}
.course-card-desc {
    font-size: 14px;
    color: var(--text-subtle);
    margin-bottom: 16px;
    line-height: 1.5;
}
.course-card-rating {
    display: flex;
    gap: 2px;
    color: #fbbf24;
    font-size: 16px;
    letter-spacing: 1px;
    margin: 12px 0 14px;
}
.course-card-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.course-card-meta span {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-body);
    background: var(--bg-card);
    padding: 4px 10px;
    border-radius: 20px;
}
.course-card-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: auto;
    padding: 12px 18px;
    background: var(--accent);
    color: #ffffff;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    text-decoration: none;
    transition: background var(--transition-fast), transform var(--transition-fast);
    align-self: stretch;
}
.course-card-btn:hover {
    background: var(--accent-hover);
    color: #ffffff;
    transform: translateY(-1px);
}
.course-card-btn span {
    display: inline-block;
    transition: transform var(--transition-fast);
}
.course-card-btn:hover span { transform: translateX(3px); }

/* Slider Arrows & Dots */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--text-heading);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all var(--transition-base);
    border: 1px solid var(--border-card);
}
.slider-arrow:hover { background: var(--accent); border-color: var(--accent); }
.slider-arrow-left { left: -22px; }
.slider-arrow-right { right: -22px; }
.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
}
.slider-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-card);
    cursor: pointer;
    transition: all var(--transition-base);
}
.slider-dots .dot.active { background: var(--accent); transform: scale(1.2); }


/* ========== FEATURES ========== */
#features { padding: 100px 0; }
.feature-block {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-bottom: 120px;
}
.feature-block:last-child { margin-bottom: 0; }
.feature-block-reverse { flex-direction: row-reverse; }
.feature-visual {
    flex: 1 1 45%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.feature-content { flex: 1 1 55%; }
.feature-title {
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.1;
}
.feature-content p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-body);
}

/* Live Animation */
.live-animation {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.live-dot {
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    position: relative;
    z-index: 2;
}
.live-ring {
    position: absolute;
    width: 80px;
    height: 80px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    opacity: 0;
}
.live-text {
    position: absolute;
    bottom: 30px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 24px;
    color: var(--accent);
    letter-spacing: 6px;
}

/* Terminal Animation */
.terminal-animation {
    width: 100%;
    max-width: 400px;
    background: var(--terminal-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-card);
}
.terminal-header {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-card);
}
.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }
.terminal-body {
    padding: 20px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 2;
}
.terminal-line { color: #e6edf3; opacity: 0; }
.terminal-prompt { color: #7ee787; }
.terminal-success { color: #7ee787; }
.terminal-accent { color: var(--accent); font-weight: bold; }
.terminal-cursor {
    display: inline-block;
    width: 8px;
    background: #7ee787;
    color: transparent;
}

/* Network Animation */
.network-animation { width: 100%; max-width: 300px; }
.network-svg { width: 100%; height: auto; }
.network-line {
    stroke: var(--accent);
    stroke-width: 2;
    opacity: 0;
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
}
.network-node {
    fill: var(--accent);
    opacity: 0;
}


/* ========== STATS ========== */
#stats {
    background: var(--bg-secondary);
    padding: 100px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
    margin-top: 60px;
}
.stat-item { padding: 20px; }
.stat-number, .stat-suffix, .stat-prefix {
    font-family: var(--font-heading);
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}
.stat-label {
    display: block;
    margin-top: 12px;
    font-size: 16px;
    color: var(--text-subtle);
}


/* ========== FOUNDER ========== */
#founder { padding: 100px 0; }
.founder-block {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 900px;
    margin: 0 auto;
}
.founder-image { flex: 0 0 180px; }
.founder-placeholder {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #4a3f8a);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 800;
    color: #FFFFFF; /* always white on gradient bg */
}
.founder-quote {
    font-size: clamp(18px, 2.5vw, 24px);
    font-style: italic;
    line-height: 1.7;
    color: var(--text-body);
    margin-bottom: 24px;
    position: relative;
    padding-left: 24px;
    border-left: 3px solid var(--accent);
}
.founder-info strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 18px;
    color: var(--text-heading);
}
.founder-info span {
    font-size: 14px;
    color: var(--text-subtle);
}


/* ========== UPCOMING (Yaklaşan Eğitimler) ========== */
#upcoming { background: var(--bg-secondary); padding: 100px 0; }
.upcoming-eyebrow {
    text-align: center;
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    color: #7c5cff;
    text-transform: uppercase;
    margin: 0 0 16px;
}
.upcoming-title {
    position: relative;
    text-align: center;
    font-size: clamp(32px, 4vw, 56px);
    font-weight: 800;
    margin: 0 0 64px;
    letter-spacing: -0.02em;
    padding-bottom: 20px;
}
.upcoming-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 110px;
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(90deg, #E63946, #cc2d3a);
}
.upcoming-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}
@media (min-width: 769px) {
    .upcoming-grid > :nth-child(3):last-child {
        grid-column: 1 / -1;
        justify-self: center;
        width: calc((100% - 32px) / 2);
    }
}

/* Kart — gradient border effect (outer wrap) */
.upcoming-card {
    position: relative;
    border-radius: 24px;
    padding: 1px;
    overflow: hidden;
    transition: transform .4s ease, box-shadow .4s ease;
}
.upcoming-card:hover { transform: translateY(-6px); }
.upcoming-card--navy {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 50%, #0f172a 100%);
    box-shadow: 0 20px 60px rgba(30, 58, 138, 0.25);
}
.upcoming-card--navy:hover { box-shadow: 0 24px 80px rgba(30, 58, 138, 0.45); }
.upcoming-card--red {
    background: linear-gradient(135deg, #7f1d1d 0%, #881337 50%, #0f172a 100%);
    box-shadow: 0 20px 60px rgba(127, 29, 29, 0.25);
}
.upcoming-card--red:hover { box-shadow: 0 24px 80px rgba(127, 29, 29, 0.45); }

.upcoming-card-inner {
    position: relative;
    border-radius: 22px;
    padding: 32px;
    color: #fff;
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.upcoming-card--navy .upcoming-card-inner {
    background: linear-gradient(135deg, rgba(23, 37, 84, 0.95), rgba(30, 27, 75, 0.95));
}
.upcoming-card--red .upcoming-card-inner {
    background: linear-gradient(135deg, rgba(69, 10, 10, 0.95), rgba(76, 5, 25, 0.95));
}
.upcoming-card-inner::before {
    content: '';
    position: absolute;
    top: -96px;
    right: -96px;
    width: 192px;
    height: 192px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    filter: blur(40px);
    transition: transform .7s ease;
    pointer-events: none;
}
.upcoming-card:hover .upcoming-card-inner::before {
    transform: scale(1.5);
}

.upcoming-card-title {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 8px;
    color: #fff;
    letter-spacing: -0.01em;
}
.upcoming-card-subtitle {
    font-size: 14px;
    margin: 0 0 28px;
}
.upcoming-card--navy .upcoming-card-subtitle { color: #93c5fd; }
.upcoming-card--red .upcoming-card-subtitle { color: #94a3b8; }

/* Tarih + saat sub-card */
.upcoming-schedule {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    padding: 18px;
    margin-bottom: 26px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.upcoming-schedule-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
}
.upcoming-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}
.upcoming-icon--blank { visibility: hidden; }
.upcoming-card--navy .upcoming-icon { color: #60a5fa; }
.upcoming-card--red .upcoming-icon { color: #ef4444; }
.upcoming-schedule-date {
    font-weight: 700;
    color: #fff;
    font-size: 16px;
}
.upcoming-card--navy .upcoming-schedule-row:not(:first-child) span:last-child { color: #bfdbfe; }
.upcoming-card--red .upcoming-schedule-row:not(:first-child) span:last-child { color: #cbd5e1; }

/* Doluluk + durum */
.upcoming-quota {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.upcoming-quota-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    margin: 0 0 4px;
    text-transform: uppercase;
}
.upcoming-card--navy .upcoming-quota-label { color: #60a5fa; }
.upcoming-card--red .upcoming-quota-label { color: #ef4444; }
.upcoming-quota-count {
    display: flex;
    align-items: baseline;
    gap: 4px;
}
.upcoming-quota-filled {
    font-size: 32px;
    font-weight: 900;
    color: #fff;
    font-family: var(--font-heading);
    line-height: 1;
}
.upcoming-quota-sep { font-size: 20px; }
.upcoming-card--navy .upcoming-quota-sep { color: #3b82f6; }
.upcoming-card--red .upcoming-quota-sep { color: #dc2626; }
.upcoming-quota-total { font-size: 20px; }
.upcoming-card--navy .upcoming-quota-total { color: #60a5fa; }
.upcoming-card--red .upcoming-quota-total { color: #94a3b8; }

.upcoming-status {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(34, 197, 94, 0.18);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.35);
    padding: 6px 14px;
    border-radius: 9999px;
    font-size: 13px;
    font-weight: 600;
}
.upcoming-status-dot {
    width: 8px;
    height: 8px;
    background: #4ade80;
    border-radius: 50%;
    animation: upcomingPulse 2s ease-in-out infinite;
}
@keyframes upcomingPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Progress bar (alt) */
.capacity-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    overflow: hidden;
}
.capacity-fill {
    height: 100%;
    border-radius: 999px;
    transition: width 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.upcoming-card--navy .capacity-fill {
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
}
.upcoming-card--red .capacity-fill {
    background: linear-gradient(90deg, #dc2626, #ef4444);
}


/* ========== TESTIMONIALS ========== */
#testimonials { background: var(--bg-secondary); }
.testimonials-wrapper { position: relative; }
.testimonials-slider {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    padding: 20px 0;
    cursor: grab;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    touch-action: pan-x;
}
.testimonials-slider,
.testimonials-slider * {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
.testimonials-slider img {
    -webkit-user-drag: none;
    user-drag: none;
    pointer-events: none;
}
.testimonials-slider::-webkit-scrollbar { display: none; }
.testimonials-slider.is-dragging {
    cursor: grabbing;
    scroll-snap-type: none;
    scroll-behavior: auto;
}
.testimonial-card {
    flex: 0 0 380px;
    scroll-snap-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--border-radius);
    padding: 32px;
    transition: all var(--transition-base);
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px var(--accent-glow);
}
.testimonial-top {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}
.testimonial-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-card);
}
.testimonial-name {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}
.testimonial-role {
    font-size: 13px;
    color: var(--text-subtle);
    margin-bottom: 0;
}
.testimonial-text {
    font-size: 15px;
    line-height: 1.7;
    font-style: italic;
    color: var(--text-body);
    margin-bottom: 16px;
}
.testimonial-stars {
    color: #fbbf24;
    font-size: 16px;
    letter-spacing: 2px;
}
.testimonial-text-wrapper { margin-bottom: 16px; }
.read-more-btn {
    display: inline-block;
    background: none;
    border: none;
    padding: 4px 0;
    margin-top: 4px;
    color: var(--accent);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
}
.read-more-btn:hover { color: var(--accent-hover); }

/* Testimonial Modal */
.testimonial-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 22, 40, 0.72);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}
.testimonial-modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}
.testimonial-modal-content {
    position: relative;
    background: var(--bg-primary);
    border: 1px solid var(--border-card);
    border-radius: 16px;
    max-width: 680px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 48px 40px 36px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    transition: transform 0.25s ease;
}
[data-theme="dark"] .testimonial-modal-content {
    background: #1a1f38;
}
.testimonial-modal-overlay.active .testimonial-modal-content {
    transform: translateY(0);
}
.modal-close-btn {
    position: absolute;
    top: 14px;
    right: 16px;
    background: transparent;
    border: none;
    font-size: 32px;
    line-height: 1;
    color: var(--text-subtle);
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 6px;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.modal-close-btn:hover {
    background: var(--border-card);
    color: var(--text-heading);
}
.modal-testimonial-avatar {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}
.modal-testimonial-avatar img {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent);
}
.modal-testimonial-text {
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-body);
    margin: 0 0 24px;
    font-style: italic;
    text-align: left;
}
.modal-testimonial-footer {
    text-align: center;
    border-top: 1px solid var(--border-card);
    padding-top: 20px;
}
.modal-testimonial-name {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-heading);
    margin: 0 0 4px;
}
.modal-testimonial-title {
    font-size: 14px;
    color: var(--text-subtle);
    margin: 0;
}
body.modal-open { overflow: hidden; }


/* ========== BLOG ========== */
#blog { padding: 120px 0; }
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.blog-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}
.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px var(--accent-glow);
}
.blog-card-img {
    height: 180px;
    overflow: hidden;
}
.blog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.blog-card:hover .blog-card-img img { transform: scale(1.05); }
.blog-card-body { padding: 24px; }
.blog-card-date {
    font-size: 13px;
    color: var(--text-subtle);
    font-weight: 600;
}
.blog-card-title {
    font-size: 18px;
    font-weight: 700;
    margin: 8px 0 12px;
    line-height: 1.4;
}
.blog-card-desc {
    font-size: 14px;
    color: var(--text-subtle);
    line-height: 1.6;
}
.blog-more {
    text-align: center;
    margin-top: 48px;
}


/* ========== CONTACT ========== */
#contact {
    background: var(--bg-secondary);
    padding: 120px 0;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.form-group { margin-bottom: 20px; }
.form-group input {
    width: 100%;
    padding: 16px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-card);
    color: var(--text-heading);
    font-size: 16px;
    transition: border-color var(--transition-base);
}
.form-group input::placeholder { color: var(--text-subtle); }
.form-group input:focus {
    outline: none;
    border-bottom-color: var(--accent);
}
.form-checkboxes { margin: 24px 0; }
.form-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-subtle);
    cursor: pointer;
}
.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--accent);
    flex-shrink: 0;
}
.form-check a { color: var(--accent); text-decoration: underline; }
.contact-submit { width: 100%; justify-content: center; font-size: 18px; padding: 18px; }

.contact-info { padding-top: 10px; }
.contact-info-item {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
    align-items: flex-start;
}
.contact-icon { font-size: 24px; flex-shrink: 0; }
.contact-info-item strong {
    display: block;
    color: var(--text-heading);
    font-family: var(--font-heading);
    font-size: 14px;
    margin-bottom: 4px;
}
.contact-info-item p {
    font-size: 15px;
    color: var(--text-body);
    margin-bottom: 0;
}
.contact-info-item a:hover { color: var(--accent); }
.contact-social {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}
.contact-social a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-body);
    transition: all var(--transition-base);
}
.contact-social a:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #FFFFFF;
}


/* ========== FOOTER (her iki temada da sabit navy) ========== */
#footer {
    padding: 60px 0 0;
    background: #1a1f38;
    color: #B8BDD4;
    border-top: none;
    position: relative;
    z-index: 2;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}
/* Footer sol kolon: Bize Ulaşın (sosyal + adres) */
.footer-contact h4 {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 14px;
}
.footer-social {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}
.footer-social a {
    width: 34px;
    height: 34px;
    background: #ffffff;
    color: #1a1f38;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), transform var(--transition-fast);
}
.footer-social a:hover {
    background: #e5e7eb;
    transform: translateY(-2px);
}
.footer-social svg { display: block; }
.footer-address {
    font-style: normal;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.6;
}
.footer-address p { margin: 0 0 10px; }
.footer-address a {
    color: rgba(255, 255, 255, 0.65);
    transition: color var(--transition-fast);
}
.footer-address a:hover { color: #ffffff; }
.footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #ffffff;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
    font-size: 14px;
    color: #B8BDD4;
    transition: color var(--transition-fast);
}
.footer-col ul a:hover { color: var(--accent); }
.footer-bottom {
    margin-top: 48px;
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
}
.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    margin: 0;
}


/* ========== FLOATING BUTTONS (Başvur + WhatsApp) ========== */
#applyButton {
    position: fixed;
    bottom: 35px;
    left: 45px;
    z-index: 999;
}
#applyButton .apply-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    background-color: #272F4E;
    color: #ffffff;
    border-radius: 50%;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
#applyButton .apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
    color: #ffffff;
}
#applyButton .apply-btn-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}
#applyButton .apply-btn-label {
    font-size: 12px;
    line-height: 1;
}

#whatsappIcon {
    position: fixed;
    bottom: 35px;
    right: 45px;
    z-index: 999;
}
#whatsappIcon img {
    width: 70px;
    height: 70px;
    transition: transform var(--transition-fast);
}
#whatsappIcon a:hover img {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    #applyButton { bottom: 20px; left: 20px; }
    #whatsappIcon { bottom: 20px; right: 20px; }
    #applyButton .apply-btn { width: 60px; height: 60px; }
    #applyButton .apply-btn-label { font-size: 11px; }
    #whatsappIcon img { width: 60px; height: 60px; }
}