:root {
    --bg-main: #eef2f7;
    --bg-grad-1: #dfe9f6;
    --bg-grad-2: #f6f8fc;
    --text-main: #1f2937;
    --muted: #6b7280;
    --card-bg: #ffffff;
    --card-border: #dfe4ea;
    --info-bg: #0f172a;
    --info-text: #e2e8f0;
    --input-bg: #ffffff;
    --input-border: #cfd6de;
    --login-bg: linear-gradient(135deg, #0a0e1a 0%, #111827 50%, #0d1526 100%);
    --login-text: #f1f5f9;
    --login-muted: #94a3b8;
    --login-muted-strong: #64748b;
    --login-card-bg: rgba(15,23,42,.72);
    --login-card-bg-soft: rgba(15,23,42,.68);
    --login-card-border: rgba(255,255,255,.1);
    --login-input-bg: rgba(255,255,255,.07);
    --login-input-bg-focus: rgba(255,255,255,.1);
    --login-input-border: rgba(255,255,255,.15);
    --login-input-focus: rgba(59,130,246,.5);
}
html[data-theme="dark"] {
    --bg-main: #0f1117;
    --bg-grad-1: #121826;
    --bg-grad-2: #0f1117;
    --text-main: #f1f5f9;
    --muted: #9ca3af;
    --card-bg: #161b22;
    --card-border: #2b3240;
    --info-bg: #1f2937;
    --info-text: #e5e7eb;
    --input-bg: #202938;
    --input-border: #3a4558;
    --login-bg: linear-gradient(135deg, #0a0e1a 0%, #111827 50%, #0d1526 100%);
    --login-text: #f1f5f9;
    --login-muted: #a2b2c8;
    --login-muted-strong: #7f93ad;
    --login-card-bg: rgba(15,23,42,.72);
    --login-card-bg-soft: rgba(15,23,42,.68);
    --login-card-border: rgba(255,255,255,.1);
    --login-input-bg: rgba(255,255,255,.07);
    --login-input-bg-focus: rgba(255,255,255,.1);
    --login-input-border: rgba(255,255,255,.15);
    --login-input-focus: rgba(59,130,246,.5);
}
body {
    min-height: 100vh;
    background: var(--login-bg);
    color: var(--login-text);
    position: relative;
}
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(59,130,246,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59,130,246,.045) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
    z-index: 0;
}
#bg-layer {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    animation: glowPulse 4s ease-in-out infinite alternate;
}
.bg-glow-1 { width: 540px; height: 540px; background: #1d4ed8; opacity: .22; top: -180px; left: -160px; }
.bg-glow-2 { width: 440px; height: 440px; background: #7c3aed; opacity: .17; bottom: -140px; right: -120px; }
#bg-particles { position: absolute; inset: 0; width: 100%; height: 100%; }
#main-content { position: relative; z-index: 1; }
html[data-login-intro="skip"] #intro-screen { display: none; }
html[data-login-intro="skip"] #main-content { opacity: 1; pointer-events: auto; }
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}
.login-grid {
    width: 100%;
    max-width: 980px;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 1rem;
}
.login-card,
.info-card {
    border: 1px solid var(--login-card-border);
    background: var(--login-card-bg);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-radius: 14px;
    box-shadow: 0 10px 40px rgba(0,0,0,.4);
    color: var(--login-text);
}
.info-card {
    background: rgba(10,14,26,.78);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border: 1px solid rgba(59,130,246,.18);
    color: #e2e8f0;
}
.brand-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 11px;
    background: rgba(255,255,255,.12);
    overflow: hidden;
}
.brand-badge img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.muted-text { color: var(--login-muted); }
.form-label { color: #cbd5e1; }
.form-control,
.form-select {
    background: var(--login-input-bg);
    border-color: var(--login-input-border);
    color: var(--login-text);
}
.form-control::placeholder { color: #64748b; }
.form-control:focus,
.form-select:focus {
    background: var(--login-input-bg-focus);
    border-color: var(--login-input-focus);
    color: var(--login-text);
    box-shadow: 0 0 0 .2rem rgba(59,130,246,.2);
}
.form-select option { background: #1e293b; color: #f1f5f9; }
.theme-btn {
    border-radius: 999px;
    width: 38px;
    height: 38px;
    padding: 0;
}
.login-tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
}
.lang-switch {
    display: inline-flex;
    gap: .4rem;
}
.theme-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    border-radius: 999px;
    padding: .35rem .7rem;
    line-height: 1;
}
.login-inline-note {
    color: var(--login-muted-strong);
    font-size: .8rem;
    line-height: 1.4;
}
@media (max-width: 520px) {
    .login-tools {
        flex-direction: column;
        align-items: stretch;
    }
    .lang-switch {
        width: 100%;
    }
    .lang-switch .btn {
        flex: 1;
    }
    .theme-toggle-btn {
        width: 100%;
        justify-content: center;
    }
}
.copyright {
    text-align: center;
    margin-top: .8rem;
    color: var(--login-muted-strong);
    font-size: .86rem;
}
.card { background: var(--login-card-bg-soft) !important; border-color: var(--login-card-border) !important; color: var(--login-text) !important; -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.card strong { color: #93c5fd; }
h3, h6 { color: #f1f5f9; }
.btn-outline-secondary { border-color: rgba(255,255,255,.2); color: #94a3b8; }
.btn-outline-secondary:hover { background: rgba(255,255,255,.08); color: #f1f5f9; border-color: rgba(255,255,255,.35); }
.alert-danger { background: rgba(127,29,29,.55); border-color: rgba(239,68,68,.3); color: #fca5a5; }
.alert-warning { background: rgba(78,42,9,.55); border-color: rgba(251,191,36,.3); color: #fde68a; }
.alert-warning a { color: #93c5fd; }
small.muted-text { color: var(--login-muted-strong); }
@media (max-width: 900px) {
    .login-grid { grid-template-columns: 1fr; }
}

/* ─── Intro Animation ─────────────────────────────────── */
#intro-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: linear-gradient(135deg, #0a0e1a 0%, #111827 50%, #0d1526 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: transform .85s cubic-bezier(.76,0,.24,1);
}
#intro-screen.slide-away { transform: translateY(-100%); }
#intro-screen::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59,130,246,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59,130,246,.05) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
}
#intro-particles { position: absolute; inset: 0; pointer-events: none; }
.intro-glow { display: none; }
@keyframes glowPulse { from { opacity: .18; } to { opacity: .38; } }

.intro-skip {
    position: absolute;
    top: 1.2rem;
    right: 1.6rem;
    color: rgba(255,255,255,.3);
    font-size: .78rem;
    cursor: pointer;
    border: none;
    background: none;
    transition: color .2s;
    z-index: 10;
    letter-spacing: .03em;
}
.intro-skip:hover { color: rgba(255,255,255,.65); }

.intro-content {
    text-align: center;
    color: #f1f5f9;
    position: relative;
    z-index: 2;
    max-width: 520px;
    width: 100%;
    padding: 2rem 1.5rem;
}
.intro-logo-wrap {
    opacity: 0;
    transform: scale(.5) translateY(18px);
    animation: introLogoIn .9s cubic-bezier(.22,1,.36,1) .2s forwards;
    margin-bottom: 1.6rem;
}
.intro-logo-wrap img {
    width: 100%;
    max-width: 440px;
    height: auto;
    object-fit: contain;
    border-radius: 16px;
    box-shadow: 0 0 52px rgba(59,130,246,.4), 0 0 18px rgba(59,130,246,.25);
}
@keyframes introLogoIn { to { opacity: 1; transform: scale(1) translateY(0); } }

.intro-divider {
    width: 52px;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #7c3aed);
    border-radius: 99px;
    margin: 0 auto 1rem;
    opacity: 0;
    animation: fadeInUp .5s ease 1.9s forwards;
}
.intro-subtitle-txt {
    opacity: 0;
    color: #94a3b8;
    font-size: .93rem;
    margin-bottom: 1.8rem;
    animation: fadeInUp .6s ease 2.05s forwards;
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.intro-features {
    display: flex;
    flex-direction: column;
    gap: .6rem;
    margin-bottom: 2rem;
    text-align: left;
}
.intro-feat {
    opacity: 0;
    display: flex;
    align-items: center;
    gap: .75rem;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 10px;
    padding: .6rem 1rem;
    font-size: .88rem;
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    transform: translateX(-22px);
}
.intro-feat .feat-icon { font-size: 1.2rem; flex-shrink: 0; }

#intro-enter-btn {
    opacity: 0;
    background: linear-gradient(135deg, #2563eb, #4f46e5);
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: .75rem 2.2rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity .5s ease, transform .2s, box-shadow .2s;
    box-shadow: 0 4px 22px rgba(37,99,235,.4);
    pointer-events: none;
}
#intro-enter-btn.visible { opacity: 1; pointer-events: auto; }
#intro-enter-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(37,99,235,.55); }
#intro-enter-btn:active { transform: translateY(0); }
.btn-arrow { display: inline-block; margin-left: .45rem; transition: transform .2s; }
#intro-enter-btn:hover .btn-arrow { transform: translateX(5px); }

/* Login area hidden until intro exits */
#main-content { opacity: 0; transition: opacity .6s ease .15s; pointer-events: none; }
#main-content.visible { opacity: 1; pointer-events: auto; }

/* ── panel-modern.css override: login sayfası kendi dark temasını kullanır ── */
body {
    background: var(--login-bg) !important;
    color: var(--login-text) !important;
}
/* Tema-bağımsız: form kontrolleri glassmorphism görünümünü korur */
html[data-theme] .form-control,
html[data-theme] .form-select {
    background: var(--login-input-bg) !important;
    border-color: var(--login-input-border) !important;
    color: var(--login-text) !important;
}
html[data-theme] .form-control::placeholder { color: #64748b !important; }
html[data-theme] .form-control:focus,
html[data-theme] .form-select:focus {
    background: var(--login-input-bg-focus) !important;
    border-color: var(--login-input-focus) !important;
    color: var(--login-text) !important;
    box-shadow: 0 0 0 .2rem rgba(59,130,246,.2) !important;
}
/* Tema-bağımsız: kartlar glassmorphism görünümünü korur */
html[data-theme] .login-card,
html[data-theme] .info-card { background: var(--login-card-bg) !important; border-color: var(--login-card-border) !important; color: var(--login-text) !important; }
html[data-theme] .card { background: var(--login-card-bg-soft) !important; border-color: var(--login-card-border) !important; color: var(--login-text) !important; }