/* ============================================================
   koc.css — Koç Self-Servis Sayfaları: Edvio Marka Teması
   Renk paleti: Turuncu (#f07d00) + Lacivert (#162040)
   Bağımsız dosya; public.css ve student-base.css'e bağımlılık yok.
   ============================================================ */

/* ── Renk Sistemi ─────────────────────────────────────────── */
:root {
    --koc-primary:        #f07d00;
    --koc-primary-light:  #ffab40;
    --koc-primary-hover:  #d96e00;
    --koc-primary-soft:   #fff4e6;
    --koc-navy:           #162040;
    --koc-navy-mid:       #1e2d52;
    --koc-navy-light:     #2a3d6e;
    --koc-accent:         #f07d00;
    --koc-accent-dark:    #d96e00;
    --koc-surface:        #ffffff;
    --koc-surface-alt:    #f8f9fc;
    --koc-surface-2:      #f3f4f6;
    --koc-border:         #ffe0b2;
    --koc-border-2:       #e5e7eb;
    --koc-text:           #111827;
    --koc-text-muted:     #6b7280;
    --koc-text-light:     #9ca3af;
    --koc-radius:         14px;
    --koc-radius-sm:      8px;
    --koc-shadow:         0 4px 24px 0 rgba(22,32,64,.13);
    --koc-shadow-sm:      0 2px 12px 0 rgba(22,32,64,.08);
    --koc-shadow-orange:  0 6px 20px rgba(240,125,0,.28);
    --koc-navbar-h:       100px;
}

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

.koc-page {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background: var(--koc-surface);
    color: var(--koc-text);
    min-height: 100vh;
    padding-top: var(--koc-navbar-h);
}

/* ── Navbar ───────────────────────────────────────────────── */
.koc-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color .25s, box-shadow .25s;
}
.koc-navbar.scrolled {
    border-color: var(--koc-border-2);
    box-shadow: var(--koc-shadow-sm);
}

/* Kendi flex satırı — Bootstrap .container'a bağımlı değil */
.koc-navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 8px 24px;
    min-height: var(--koc-navbar-h);
    gap: 16px;
    box-sizing: border-box;
}

.koc-navbar-brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}
.koc-logo { height: 90px; max-width: 260px; object-fit: contain; }

/* Orta nav linkleri */
.koc-nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    justify-content: center;
}
@media (max-width: 991px) { .koc-nav-links { display: none; } }

/* Sağ alan */
.koc-navbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.koc-nav-desktop-btn { display: inline-flex; }
.koc-navbar-right .koc-nav-mobile-btn { display: none; }
@media (max-width: 991px) {
    .koc-nav-desktop-btn { display: none !important; }
    .koc-navbar-right .koc-nav-mobile-btn { display: flex; }
}

.koc-nav-link {
    padding: 6px 14px;
    border-radius: var(--koc-radius-sm);
    color: var(--koc-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background .18s, color .18s;
}
.koc-nav-link:hover, .koc-nav-link.active {
    background: var(--koc-primary-soft);
    color: var(--koc-primary);
}

/* Buttons */
.koc-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    border-radius: 50px;
    background: var(--koc-primary);
    color: #fff !important;
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
    border: 2px solid var(--koc-primary);
    cursor: pointer;
    transition: background .18s, transform .14s, box-shadow .18s;
    white-space: nowrap;
    font-family: inherit;
}
.koc-btn-primary:hover {
    background: var(--koc-primary-hover);
    border-color: var(--koc-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--koc-shadow-orange);
    color: #fff !important;
}
.koc-btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    border-radius: 50px;
    background: transparent;
    color: var(--koc-navy) !important;
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
    border: 2px solid var(--koc-navy);
    cursor: pointer;
    transition: background .18s, color .18s;
    white-space: nowrap;
    font-family: inherit;
}
.koc-btn-outline:hover {
    background: var(--koc-navy);
    color: #fff !important;
}
.koc-btn-lg {
    padding: 13px 30px;
    font-size: 1rem;
    border-radius: 50px;
}

/* Hamburger */
.koc-hamburger {
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    border-radius: var(--koc-radius-sm);
}
.koc-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--koc-text);
    border-radius: 2px;
    transition: transform .2s, opacity .2s;
}
.koc-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.koc-hamburger.open span:nth-child(2) { opacity: 0; }
.koc-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.koc-mobile-menu {
    display: none;
    background: var(--koc-surface);
    border-top: 1px solid var(--koc-border-2);
}
.koc-mobile-menu.open { display: block; }
.koc-mobile-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 24px 20px;
}
.koc-mobile-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    color: var(--koc-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    border-bottom: 1px solid var(--koc-border-2);
}
.koc-mobile-actions { margin-top: 16px; }

/* ── Hero ─────────────────────────────────────────────────── */
.koc-hero {
    background: linear-gradient(135deg, #f8f9fc 0%, #fff4e6 50%, #ffecd1 100%);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}
.koc-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(240,125,0,.10) 0%, transparent 55%),
                radial-gradient(circle at 15% 80%, rgba(22,32,64,.06) 0%, transparent 50%);
    pointer-events: none;
}
.koc-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--koc-primary-soft);
    color: var(--koc-primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    margin-bottom: 20px;
    border: 1px solid var(--koc-border);
}
.koc-hero-title {
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.15;
    color: var(--koc-navy);
    margin-bottom: 20px;
}
.koc-hero-title .accent { color: var(--koc-primary); }
.koc-hero-subtitle {
    font-size: 1.1rem;
    color: var(--koc-text-muted);
    max-width: 560px;
    line-height: 1.65;
    margin-bottom: 36px;
}
.koc-hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.koc-hero-stats {
    display: flex;
    gap: 32px;
    margin-top: 52px;
    flex-wrap: wrap;
}
.koc-hero-stat-num {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--koc-primary);
}
.koc-hero-stat-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--koc-text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}
.koc-hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.koc-hero-card {
    background: var(--koc-surface);
    border-radius: var(--koc-radius);
    padding: 24px;
    box-shadow: var(--koc-shadow);
    border: 1px solid var(--koc-border-2);
    max-width: 340px;
    width: 100%;
}
.koc-hero-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--koc-border-2);
}
.koc-hero-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--koc-primary-soft);
    color: var(--koc-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.koc-hero-card-title { font-weight: 700; font-size: 0.92rem; color: var(--koc-navy); }
.koc-hero-card-sub   { font-size: 0.75rem; color: var(--koc-text-muted); }
.koc-progress-item   { margin-bottom: 10px; }
.koc-progress-label  {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--koc-text-muted);
    margin-bottom: 4px;
}
.koc-progress-bar-wrap {
    height: 8px;
    background: var(--koc-border-2);
    border-radius: 99px;
    overflow: hidden;
}
.koc-progress-bar {
    height: 100%;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--koc-primary), var(--koc-primary-light));
}
.koc-badge-orange {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 700;
    background: var(--koc-primary-soft);
    color: var(--koc-primary);
    border: 1px solid var(--koc-border);
}
/* Eski teal badge için geri uyumluluk */
.koc-badge-green { display: inline-block; padding: 2px 9px; border-radius: 50px; font-size: 0.72rem; font-weight: 700; background: var(--koc-primary-soft); color: var(--koc-primary); border: 1px solid var(--koc-border); }

/* ── Section commons ──────────────────────────────────────── */
.koc-section { padding: 80px 0; }
.koc-section-alt { background: var(--koc-surface-alt); }
.koc-section-title {
    font-size: clamp(1.5rem, 3.5vw, 2.4rem);
    font-weight: 800;
    color: var(--koc-navy);
    margin-bottom: 12px;
    line-height: 1.2;
}
.koc-section-title .accent { color: var(--koc-primary); }
.koc-section-subtitle {
    font-size: 1rem;
    color: var(--koc-text-muted);
    max-width: 560px;
    line-height: 1.6;
}
.koc-section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--koc-primary-soft);
    color: var(--koc-primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    margin-bottom: 14px;
    border: 1px solid var(--koc-border);
}

/* ── Feature Cards ────────────────────────────────────────── */
.koc-feat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
    margin-top: 48px;
}
.koc-feat-card {
    background: var(--koc-surface);
    border: 1px solid var(--koc-border-2);
    border-radius: var(--koc-radius);
    padding: 28px 22px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
    position: relative;
    overflow: hidden;
}
.koc-feat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--koc-navy), var(--koc-primary));
    opacity: 0;
    transition: opacity .2s;
}
.koc-feat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--koc-shadow);
    border-color: var(--koc-border);
}
.koc-feat-card:hover::before { opacity: 1; }
.koc-feat-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--koc-primary-soft);
    color: var(--koc-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 16px;
}
.koc-feat-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--koc-navy);
    margin-bottom: 8px;
}
.koc-feat-desc {
    font-size: 0.84rem;
    color: var(--koc-text-muted);
    line-height: 1.55;
}

/* ── Steps ────────────────────────────────────────────────── */
.koc-steps { margin-top: 48px; }
.koc-step {
    display: flex;
    gap: 22px;
    padding: 28px 0;
    border-bottom: 1px solid var(--koc-border-2);
    position: relative;
}
.koc-step:last-child { border-bottom: none; }
.koc-step-num {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--koc-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 800;
}
.koc-step-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--koc-navy);
    margin-bottom: 6px;
}
.koc-step-desc {
    font-size: 0.88rem;
    color: var(--koc-text-muted);
    line-height: 1.55;
}

/* ── CTA Band ─────────────────────────────────────────────── */
.koc-cta-band {
    background: linear-gradient(135deg, var(--koc-navy) 0%, var(--koc-navy-mid) 60%, #1a3a7a 100%);
    padding: 72px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.koc-cta-band::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(240,125,0,.15) 0%, transparent 60%),
                radial-gradient(circle at 80% 30%, rgba(255,171,64,.10) 0%, transparent 50%);
    pointer-events: none;
}
.koc-cta-title {
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
}
.koc-cta-sub {
    font-size: 1.05rem;
    color: rgba(255,255,255,.78);
    margin-bottom: 36px;
}
.koc-btn-white {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 32px;
    border-radius: 50px;
    background: var(--koc-primary);
    color: #fff !important;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform .18s, box-shadow .18s, background .18s;
    font-family: inherit;
}
.koc-btn-white:hover {
    background: var(--koc-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(240,125,0,.4);
    color: #fff !important;
}

/* ── Footer ───────────────────────────────────────────────── */
.koc-footer {
    background: var(--koc-navy);
    color: rgba(255,255,255,.82);
    padding: 60px 0 0;
}
.koc-footer-tagline {
    font-size: 0.85rem;
    color: rgba(255,255,255,.5);
    margin-top: 14px;
    line-height: 1.6;
}
.koc-footer-heading {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: rgba(255,255,255,.38);
    margin-bottom: 12px;
}
.koc-footer-link {
    display: block;
    color: rgba(255,255,255,.65);
    text-decoration: none;
    font-size: 0.88rem;
    margin-bottom: 8px;
    transition: color .15s;
}
.koc-footer-link:hover { color: var(--koc-primary-light); }
.koc-footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 48px;
    padding: 18px 0;
    border-top: 1px solid rgba(255,255,255,.08);
    font-size: 0.8rem;
    color: rgba(255,255,255,.4);
}

.koc-auth-footer {
    padding: 16px 0;
    border-top: 1px solid var(--koc-border-2);
    font-size: 0.8rem;
    color: var(--koc-text-muted);
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}
.koc-auth-footer-link {
    color: var(--koc-text-muted);
    text-decoration: none;
    transition: color .15s;
}
.koc-auth-footer-link:hover { color: var(--koc-primary); }

/* ── Auth Card (Kayıt / Giriş) ────────────────────────────── */
.koc-auth-page {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background: linear-gradient(150deg, #f8f9fc 0%, #fff4e6 60%, #ffecd1 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: var(--koc-navbar-h);
}
.koc-auth-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 16px;
    width: 100%;
}
.koc-auth-card {
    width: 100%;
    max-width: 460px;
    background: var(--koc-surface);
    border-radius: var(--koc-radius);
    box-shadow: 0 8px 40px rgba(22,32,64,.12);
    padding: 40px 36px;
    border: 1px solid var(--koc-border-2);
    box-sizing: border-box;
}
.koc-auth-logo-wrap {
    text-align: center;
    margin-bottom: 28px;
}
.koc-auth-logo { height: 90px; max-width: 260px; object-fit: contain; }
.koc-auth-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--koc-navy);
    margin-bottom: 6px;
}
.koc-auth-sub {
    font-size: 0.88rem;
    color: var(--koc-text-muted);
    margin-bottom: 28px;
    line-height: 1.5;
}

/* Form */
.koc-form-group {
    margin-bottom: 18px;
    width: 100%;
}
.koc-form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--koc-navy);
    margin-bottom: 6px;
}
.koc-form-label .req { color: var(--koc-primary); }
.koc-form-input,
.koc-form-select {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--koc-border-2);
    border-radius: var(--koc-radius-sm);
    font-size: 0.9rem;
    color: var(--koc-text);
    background: var(--koc-surface);
    transition: border-color .18s, box-shadow .18s;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    outline: none;
    display: block;
}
.koc-form-input:focus, .koc-form-select:focus {
    border-color: var(--koc-primary);
    box-shadow: 0 0 0 3px rgba(240,125,0,.12);
}
.koc-form-input-icon {
    position: relative;
    width: 100%;
    box-sizing: border-box;
}
.koc-form-input-icon .koc-form-input { padding-left: 40px; }
.koc-form-input-icon .icon {
    position: absolute;
    left: 13px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--koc-text-light);
    font-size: 0.9rem;
    pointer-events: none;
    z-index: 1;
}
.koc-form-hint {
    font-size: 0.76rem;
    color: var(--koc-text-muted);
    margin-top: 4px;
}
.koc-form-error {
    font-size: 0.78rem;
    color: #dc2626;
    margin-top: 4px;
    display: none;
}
.koc-form-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
}
.koc-form-check input[type="checkbox"] {
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: var(--koc-primary);
    width: 16px;
    height: 16px;
}
.koc-form-check label {
    font-size: 0.82rem;
    color: var(--koc-text-muted);
    line-height: 1.5;
}
.koc-form-check label a { color: var(--koc-primary); text-decoration: none; font-weight: 600; }
.koc-form-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    font-size: 0.78rem;
    color: var(--koc-text-muted);
}
.koc-form-divider::before, .koc-form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--koc-border-2);
}

.koc-auth-bottom {
    text-align: center;
    margin-top: 22px;
    font-size: 0.85rem;
    color: var(--koc-text-muted);
}
.koc-auth-bottom a {
    color: var(--koc-primary);
    font-weight: 700;
    text-decoration: none;
}
.koc-auth-bottom a:hover { text-decoration: underline; }
.koc-auth-alt-link {
    margin-top: 10px;
    font-size: 0.78rem;
    color: var(--koc-text-muted);
    text-align: center;
}
.koc-auth-alt-link a { color: var(--koc-text-muted); text-decoration: none; }
.koc-auth-alt-link a:hover { color: var(--koc-primary); }

/* Submit Button */
.koc-btn-submit {
    box-sizing: border-box;
    width: 100%;
    padding: 13px;
    border-radius: var(--koc-radius-sm);
    background: var(--koc-primary);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: background .18s, transform .14s, box-shadow .18s;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    display: block;
}
.koc-btn-submit:hover {
    background: var(--koc-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--koc-shadow-orange);
}
.koc-btn-submit:disabled {
    background: var(--koc-text-light);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Alert */
.koc-alert {
    box-sizing: border-box;
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--koc-radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 18px;
    display: none;
}
.koc-alert-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
.koc-alert-success { background: #fff4e6; color: var(--koc-primary-hover); border: 1px solid var(--koc-border); }

/* Password toggle */
.koc-pw-wrap {
    position: relative;
    width: 100%;
    box-sizing: border-box;
}
.koc-pw-wrap .koc-form-input { padding-right: 44px; }
.koc-pw-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--koc-text-muted);
    padding: 2px;
    z-index: 1;
}
.koc-pw-toggle:hover { color: var(--koc-primary); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 992px) {
    .koc-hero { padding: 120px 0 48px; }
    .koc-hero-visual { margin-top: 40px; }
}
@media (max-width: 576px) {
    .koc-auth-card { padding: 28px 18px; }
    .koc-hero-title { font-size: 1.9rem; }
    .koc-cta-title { font-size: 1.5rem; }
    .koc-hero-stats { gap: 20px; }
}