:root {
    --app-primary: #1b6ec2;
    --app-primary-dark: #0f3a6b;
    --app-primary-light: #258cfb;
    --app-text: #1a2233;
    --app-text-muted: #5b6577;
    --app-border: #e6ecf3;
    --app-surface: #ffffff;
    --app-bg: #f4f7fb;
    /* Bootstrap primary override for consistent brand color across utilities */
    --bs-primary: #1b6ec2;
    --bs-primary-rgb: 27, 110, 194;
}

html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    color: var(--app-text);
    background-color: var(--app-bg);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--app-primary-light);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

.media-trigger {
    line-height: 1;
}

.media-trigger:focus-visible {
    outline: 2px solid var(--app-primary-light);
    outline-offset: 2px;
    border-radius: 4px;
}

.modal-body .video-js {
    max-height: 65vh;
}

#mediaImage {
    max-height: 75vh;
}

/* Image popup yükleme deneyimi: spinner alanı sabit yer kaplar, image yüklenince fade-in. */
#imageContainer {
    position: relative;
    min-height: 320px;
}

#imageLoader {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--app-primary, #1b6ec2);
    background: rgba(255, 255, 255, 0.6);
    border-radius: 0.5rem;
}

#imageLoader .spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3rem;
}

#imageLoader .image-loader-text {
    font-size: 0.9rem;
    color: #495057;
    letter-spacing: 0.01em;
}

#mediaImage {
    opacity: 0;
    transition: opacity 180ms ease-in;
}

#mediaImage.is-loaded {
    opacity: 1;
}

/* ===== App Shell (header, main, footer) ===== */
.app-body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background:
        radial-gradient(circle at 0% 0%, rgba(37, 140, 251, 0.06), transparent 45%),
        radial-gradient(circle at 100% 100%, rgba(15, 58, 107, 0.05), transparent 50%),
        var(--app-bg);
    margin: 0;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    color: #ffffff;
    background:
        radial-gradient(circle at 12% 20%, rgba(37, 140, 251, 0.35), transparent 55%),
        radial-gradient(circle at 88% 80%, rgba(15, 58, 107, 0.55), transparent 55%),
        linear-gradient(135deg, #0f3a6b 0%, #1b6ec2 55%, #258cfb 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 6px 20px rgba(7, 32, 64, 0.25);
}

.app-navbar {
    padding-top: 1.1rem;
    padding-bottom: 1.1rem;
}

.app-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    padding: 0;
}

.app-brand-text {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.15;
    gap:5px;


}

.app-brand-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.02em;
}

.app-brand-sub {
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.75);
}

.app-nav {
    gap: 0.5rem;
}

.app-user {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.3rem 0.85rem 0.3rem 0.35rem;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    margin-right: 0.5rem;
    backdrop-filter: blur(8px);
}

.app-user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #ffffff;
    color: var(--app-primary-dark);
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
}

.app-user-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: #ffffff;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-signin,
.app-signout {
    font-weight: 600;
    padding: 0.45rem 1.2rem;
    border-radius: 8px;
}

.app-signout {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.55);
    background: transparent;
}

.app-signout:hover,
.app-signout:focus {
    color: var(--app-primary-dark);
    background: #ffffff;
    border-color: #ffffff;
}

.app-signin {
    color: var(--app-primary-dark);
    background: #ffffff;
    border-color: #ffffff;
}

.app-signin:hover,
.app-signin:focus {
    color: var(--app-primary-dark);
    background: #f3f7fc;
    border-color: #f3f7fc;
}

/* Navbar toggler color override (mobile hamburger) */
.app-navbar .navbar-toggler {
    color: rgba(255, 255, 255, 0.85);
    border-color: rgba(255, 255, 255, 0.4);
}

.app-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.app-main {
    flex: 1 0 auto;
}

.app-footer {
    background: var(--app-surface);
    border-top: 1px solid var(--app-border);
    padding: 1rem 0;
    color: var(--app-text-muted);
    font-size: 0.85rem;
}

.app-footer-row {
    display: flex;    
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: 8px;
    gap: 0.5rem;
}

.app-footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--app-text);
}

.app-footer-brand strong {
    color: var(--app-primary);
    font-weight: 700;
}

.app-footer-sep {
    color: var(--app-border);
}

/* ===== Cards / Content surfaces ===== */
.app-main .card {
    border: 1px solid var(--app-border);
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(15, 58, 107, 0.04);
    overflow: hidden;
}

.app-main .card-header {
    background: var(--app-surface);
    border-bottom: 1px solid var(--app-border);
    padding: 0.9rem 1.25rem;
}

.app-main .card-header h5,
.app-main .card-header .h5 {
    font-weight: 600;
    color: var(--app-text);
}

/* ===== Buttons (corporate accent) ===== */
.btn-primary {
    --bs-btn-bg: var(--app-primary);
    --bs-btn-border-color: var(--app-primary);
    --bs-btn-hover-bg: var(--app-primary-dark);
    --bs-btn-hover-border-color: var(--app-primary-dark);
    --bs-btn-active-bg: var(--app-primary-dark);
    --bs-btn-active-border-color: var(--app-primary-dark);
}

.btn-outline-primary {
    --bs-btn-color: var(--app-primary);
    --bs-btn-border-color: var(--app-primary);
    --bs-btn-hover-bg: var(--app-primary);
    --bs-btn-hover-border-color: var(--app-primary);
    --bs-btn-active-bg: var(--app-primary-dark);
    --bs-btn-active-border-color: var(--app-primary-dark);
}

/* ===== Tables ===== */
.app-main .table {
    --bs-table-hover-bg: rgba(27, 110, 194, 0.04);
}

.app-main .table > :not(caption) > * > * {
    padding: 0.7rem 0.9rem;
}

.app-main .table thead th {
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--app-text-muted);
    background: #f8fafc;
    border-bottom: 1px solid var(--app-border);
}

/* ===== Page Header (in-content title block) ===== */
.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.25rem 0 0.75rem;
    border-bottom: 1px solid var(--app-border);
}

.page-header-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--app-text);
    letter-spacing: 0.01em;
}

.page-header-subtitle {
    margin: 0.25rem 0 0 0;
    color: var(--app-text-muted);
    font-size: 0.92rem;
}

/* ===== Page Hero (used by error / privacy / access denied) ===== */
.page-hero {
    text-align: center;
    padding: 3rem 1.5rem 2rem;
}

.page-hero-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--app-primary) 0%, var(--app-primary-light) 100%);
    color: #ffffff;
    box-shadow: 0 8px 20px rgba(27, 110, 194, 0.25);
}

.page-hero-icon.is-danger {
    background: linear-gradient(135deg, #b91c1c 0%, #ef4444 100%);
    box-shadow: 0 8px 20px rgba(185, 28, 28, 0.25);
}

.page-hero-icon.is-warning {
    background: linear-gradient(135deg, #c2410c 0%, #f59e0b 100%);
    box-shadow: 0 8px 20px rgba(194, 65, 12, 0.25);
}

.page-hero h1,
.page-hero h2 {
    font-weight: 700;
    color: var(--app-text);
    margin: 0 0 0.5rem 0;
}

.page-hero p {
    color: var(--app-text-muted);
    margin: 0 auto 1.5rem;
    max-width: 520px;
}

@media (max-width: 575.98px) {
    .app-brand-sub {
        display: none;
    }

    .app-brand-name {
        font-size: 1.2rem;
    }

    .app-user-name {
        display: none;
    }
}

/* ===== Login Page ===== */
.login-body {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
}

.login-page {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1rem;
    background:
        radial-gradient(circle at 12% 18%, rgba(37, 140, 251, 0.35), transparent 55%),
        radial-gradient(circle at 88% 82%, rgba(15, 58, 107, 0.55), transparent 55%),
        linear-gradient(135deg, #0f3a6b 0%, #1b6ec2 55%, #258cfb 100%);
    overflow: hidden;
}

.login-page::before,
.login-page::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.login-page::before {
    width: 480px;
    height: 480px;
    top: -180px;
    right: -160px;
    background: rgba(255, 255, 255, 0.06);
}

.login-page::after {
    width: 360px;
    height: 360px;
    bottom: -140px;
    left: -120px;
    background: rgba(255, 255, 255, 0.05);
}

.login-shell {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1080px;
    background: #ffffff;
    border-radius: 20px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    min-height: 560px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow:
        0 30px 60px -20px rgba(7, 32, 64, 0.45),
        0 18px 36px -18px rgba(7, 32, 64, 0.35);
}

.login-brand {
    position: relative;
    background: #ffffff;
    color: #1a2233;
    padding: 3rem 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.login-brand::after {
    content: "";
    position: absolute;
    top: 8%;
    bottom: 8%;
    right: 0;
    width: 28px;
    background: linear-gradient(to left, rgba(15, 58, 107, 0.10), rgba(15, 58, 107, 0));
    pointer-events: none;
}

.login-brand-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 420px;
}

.login-hero-image {
    width: 100%;
    max-width: 320px;
    height: auto;
    object-fit: contain;
    margin-bottom: 1.75rem;
}

.login-brand-title {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    margin: 0 0 0.5rem 0;
    color: #1b6ec2;
}

.login-brand-company {
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #5b6577;
    margin: 0;
}

.login-form {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 2.75rem;
    background: #ffffff;
}

.login-form-inner {
    width: 100%;
    max-width: 380px;
}

.login-form-header {
    margin-bottom: 2rem;
}

.login-eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #1b6ec2;
    background: rgba(27, 110, 194, 0.08);
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    margin-bottom: 0.9rem;
}

.login-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1a2233;
    margin: 0 0 0.5rem 0;
}

.login-subtitle {
    font-size: 0.95rem;
    color: #5b6577;
    margin: 0;
    line-height: 1.5;
}

.login-action {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    margin-bottom: 1.75rem;
}

.login-action-label {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.88rem;
    font-weight: 500;
    color: #3a4255;
}

.login-ms-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    min-width: 160px;
    box-shadow: 0 6px 16px rgba(27, 110, 194, 0.25);
    transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(27, 110, 194, 0.32);
}

.btn-login:active {
    transform: translateY(0);
}

.login-footnote {
    border-top: 1px solid #eef1f6;
    padding-top: 1rem;
}

@media (max-width: 991.98px) {
    .login-shell {
        grid-template-columns: 1fr;
        max-width: 520px;
    }

    .login-brand {
        padding: 2.5rem 2rem;
        border-bottom: 1px solid #eef2f8;
    }

    .login-brand::after {
        /* On mobile the brand panel sits above the form, so the vertical strip is hidden */
        display: none;
    }

    .login-hero-image {
        max-width: 220px;
        margin-bottom: 1.25rem;
    }

    .login-brand-title {
        font-size: 1.85rem;
    }

    .login-form {
        padding: 2.25rem 1.75rem;
    }
}

@media (max-width: 575.98px) {
    .login-page {
        padding: 1.25rem 0.5rem;
    }

    .login-shell {
        border-radius: 16px;
    }

    .login-brand {
        padding: 2rem 1.25rem;
    }

    .login-form {
        padding: 1.75rem 1.25rem;
    }
}