:root {
    --fd-navy: #101a34;
    --fd-navy-dark: #0b1328;
    --fd-teal: #14b8a6;
    --fd-bg: #f4f6fb;
    --fd-card-shadow: 0 2px 10px rgba(16, 26, 52, 0.06);
}

html, body {
    height: 100%;
    background-color: var(--fd-bg);
    font-family: "Segoe UI", "Inter", Arial, sans-serif;
}

.app-shell {
    display: flex;
    min-height: 100vh;
    min-width: 1280px;
}

/* Sidebar — yuvarlatılmış "floating" panel, bkz. UI_STANDARDS.md §8 */
.app-sidebar {
    width: 240px;
    flex: 0 0 240px;
    background: linear-gradient(135deg, #0F1B3D 0%, #16244D 100%);
    display: flex;
    flex-direction: column;
    padding: 24px 0;
    margin: 12px;
    border-radius: 18px;
    height: calc(100vh - 24px);
    position: sticky;
    top: 12px;
    align-self: flex-start;
    box-shadow: 0 8px 24px rgba(15, 27, 61, .12);
    overflow-y: auto;
}

.sidebar-brand {
    padding: 0 24px 24px 24px;
}

.sidebar-brand-logo {
    max-height: 40px;
    max-width: 160px;
}

.sidebar-brand-text {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-nav .nav-link {
    color: #b7c0d6;
    margin: 0 10px;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: background-color .15s ease, color .15s ease;
}

.sidebar-nav .nav-link i {
    font-size: 1.05rem;
    width: 20px;
    text-align: center;
}

.sidebar-nav .nav-link:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.05);
}

.sidebar-nav .nav-link.active {
    color: var(--fd-teal);
    background-color: rgba(20, 184, 166, 0.14);
}

/* Main area */
.app-main {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-width: 0;
    margin: 12px 12px 12px 0;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(244, 246, 251, .85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 20px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.header-user > a {
    background-color: #fff;
    border-radius: 999px;
    padding: 6px 14px 6px 6px;
    border: 1px solid #e8ecf3;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.header-user > a:hover {
    border-color: #d8dee9;
}

.header-user .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #dfe6f3;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    color: #4a5578;
}

.header-user .user-greeting {
    font-size: 0.85rem;
    color: #6b7280;
    line-height: 1.3;
}

.header-user .user-greeting strong {
    color: #1a2340;
    font-size: 0.9rem;
}

.app-content {
    padding: 28px 32px;
}

/* Cards */
.fd-card {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: var(--fd-card-shadow);
    border: none;
    padding: 20px;
}

.fd-stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background-color: #e6f7f5;
    color: var(--fd-teal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.fd-stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1a2340;
}

.fd-stat-label {
    font-size: 0.85rem;
    color: #6b7280;
}

.fd-stat-trend {
    font-size: 0.8rem;
    color: #16a34a;
    font-weight: 600;
}

.fd-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
}

.fd-badge-aktif { background-color: #e3f9ed; color: #1a9d5c; }
.fd-badge-pasif { background-color: #fdeaea; color: #d0342c; }
.fd-badge-askida { background-color: #fff4e0; color: #c67c05; }
.fd-badge-bakim { background-color: #fff4e0; color: #c67c05; }
.fd-badge-ariza { background-color: #fdeaea; color: #d0342c; }

.fd-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

/* Login sayfası */
.login-body {
    background-color: var(--fd-navy);
}

.login-shell {
    display: flex;
    height: 100vh;
}

.login-panel-navy {
    flex: 1 1 50%;
    background-color: var(--fd-navy);
    background-image: radial-gradient(circle at 15% 15%, rgba(20, 184, 166, 0.12), transparent 45%), linear-gradient(135deg, #0F1B3D 0%, #16244D 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 32px;
    height: 100vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}

.login-panel-navy::-webkit-scrollbar {
    width: 6px;
}

.login-panel-navy::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.login-promo {
    max-width: 680px;
    width: 100%;
}

.login-promo-highlight-card {
    display: flex;
    background-color: #fff;
    border-radius: 16px;
    padding: 24px 8px;
    margin-bottom: 20px;
    box-shadow: 0 16px 40px rgba(4, 10, 26, 0.35);
}

.login-promo-highlight-col {
    flex: 1 1 0;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 0 16px;
}

.login-promo-highlight-col + .login-promo-highlight-col {
    border-left: 1px solid #e9ecf2;
}

.login-promo-highlight-col img {
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    object-fit: contain;
}

.login-promo-highlight-col strong {
    display: block;
    color: #1a2340;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.login-promo-highlight-col p {
    color: #6b7280;
    font-size: 0.78rem;
    line-height: 1.4;
    margin: 0;
}

.login-promo-title {
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.login-promo-subtitle {
    color: #dbe1ee;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.login-promo-highlight {
    color: var(--fd-teal);
}

.login-promo-flow-card {
    background-color: #fff;
    border-radius: 16px;
    padding: 24px 20px 20px 20px;
    box-shadow: 0 16px 40px rgba(4, 10, 26, 0.35);
}

.login-promo-flow-title {
    color: #1a2340;
    text-align: center;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.login-promo-flow {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    position: relative;
}

.login-promo-flow::before {
    content: '';
    position: absolute;
    top: 14px;
    left: 0;
    right: 0;
    height: 1px;
    background-color: #e9ecf2;
}

.login-promo-flow-item {
    flex: 1 1 0;
    text-align: center;
    position: relative;
    z-index: 1;
}

.login-promo-flow-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: var(--fd-teal);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.login-promo-flow-icon {
    display: block;
    margin: 0 auto 10px auto;
    width: 64px;
    height: 64px;
}

.login-promo-flow-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 50%;
}

.login-promo-flow-item strong {
    display: block;
    color: #1a2340;
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1.25;
}

.login-promo-flow-item p {
    color: #6b7280;
    font-size: 0.68rem;
    line-height: 1.35;
    margin: 0;
}

.login-panel-white {
    flex: 1 1 50%;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    height: 100vh;
    overflow-y: auto;
}

/* Login tanıtım paneli — ek bölümler */
.login-promo-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    margin: 18px 0;
}

.login-promo-chain-card {
    background-color: #fff;
    border-radius: 16px;
    padding: 24px 20px;
    box-shadow: 0 16px 40px rgba(4, 10, 26, 0.35);
}

.login-promo-chain-title {
    color: #1a2340;
    text-align: center;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 18px;
}

.login-promo-chain-box {
    background-color: #f8f9fc;
    border: 1px solid #eef0f5;
    border-radius: 14px;
    padding: 18px 14px;
}

.login-promo-chain {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2px;
}

.login-promo-chain-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex: 1 1 0;
}

.login-promo-chain-icon {
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    border-radius: 50%;
    border: 2px solid var(--fd-teal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: #fff;
}

.login-promo-chain-icon img {
    width: 70%;
    height: 70%;
    object-fit: contain;
}

.login-promo-chain-label {
    color: #1a2340;
    font-size: 0.62rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.2;
}

.login-promo-chain-caption-wrap {
    text-align: center;
    margin-top: 18px;
}

.login-promo-chain-caption-wrap > i {
    color: var(--fd-teal);
    font-size: 1rem;
}

.login-promo-chain-caption {
    color: var(--fd-teal);
    font-size: 0.78rem;
    font-weight: 600;
    line-height: 1.5;
    margin: 8px 0 12px 0;
}

.login-promo-chain-underline {
    display: inline-block;
    width: 48px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--fd-navy), var(--fd-teal));
}

.login-promo-chain-arrow {
    color: var(--fd-teal);
    font-size: 0.85rem;
    margin-top: 20px;
}

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

.login-card-logo {
    text-align: center;
    margin-bottom: 8px;
}

.login-card-logo-img {
    max-height: 48px;
}

.login-card-logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1a2340;
}

.login-card-subtitle {
    text-align: center;
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 28px;
}

.login-card .form-control {
    border-radius: 8px;
    border: 1px solid #d7dce6;
    padding: 10px 12px;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.login-card .form-control:focus {
    border-color: var(--fd-teal);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.18);
}

.login-card .input-group {
    border-radius: 8px;
    transition: box-shadow .15s ease;
}

.login-card .input-group .form-control {
    border-right: none;
}

.login-card .input-group .form-control:focus {
    box-shadow: none;
}

.login-card .input-group .btn {
    border: 1px solid #d7dce6;
    border-left: none;
    background-color: #fff;
    color: #6b7280;
    transition: border-color .15s ease;
}

.login-card .input-group:focus-within {
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.18);
}

.login-card .input-group:focus-within .form-control,
.login-card .input-group:focus-within .btn {
    border-color: var(--fd-teal);
}

.btn-login {
    background-color: var(--fd-teal);
    border-color: var(--fd-teal);
    color: #fff;
    font-weight: 600;
    padding: 10px;
}

.btn-login:hover {
    background-color: #0f9c8c;
    border-color: #0f9c8c;
    color: #fff;
}

/* Uyarı Modalı (_AlertModal.cshtml) */
.fd-alert-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto;
}

.fd-alert-success { background-color: #e3f9ed; color: #1a9d5c; }
.fd-alert-error { background-color: #fdeaea; color: #d0342c; }
.fd-alert-warning { background-color: #fff4e0; color: #c67c05; }
.fd-alert-info { background-color: #e8f1fd; color: #2563eb; }