:root {
    --abys-navy: #0f2e57;
    --abys-navy-dark: #0a1f3d;
    --abys-border: #dce3eb;
    --abys-text: #1a2332;
    --abys-muted: #5c6670;
    --abys-bg: #f0f3f7;
    --abys-white: #ffffff;
    --abys-accent: #1e4a7a;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    font-size: 14px;
    color: var(--abys-text);
    background: #fff;
    line-height: 1.5;
}

/* Login — tek sayfa, iki bölüm */
.login-shell {
    min-height: 100vh;
    display: flex;
    width: 100%;
}

.login-brand-panel {
    flex: 1 1 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 56px 48px;
    background: linear-gradient(165deg, #0a1628 0%, #0f2e57 50%, #123a6b 100%);
    color: #fff;
}

.login-brand-inner {
    max-width: 360px;
    text-align: center;
}

.login-logo {
    display: block;
    width: 188px;
    height: 188px;
    margin: 0 auto 28px;
    object-fit: contain;
}

.login-system-title {
    margin: 0 0 10px;
    font-size: 17px;
    font-weight: 600;
    line-height: 1.45;
    letter-spacing: 0.01em;
    color: rgba(255, 255, 255, 0.95);
}

.login-dept-full {
    margin: 0;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.68);
}

.login-support {
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    text-align: center;
}

.login-support-title {
    margin: 0 0 8px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.82);
}

.login-support-text {
    margin: 0 0 14px;
    font-size: 12px;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.52);
}

.login-support-link {
    display: inline-block;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #fff;
    text-decoration: none;
    padding: 10px 18px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.06);
    transition: background 0.15s ease, border-color 0.15s ease;
}

.login-support-link:hover {
    background: rgba(37, 211, 102, 0.14);
    border-color: rgba(37, 211, 102, 0.45);
    color: #fff;
}

.login-support-dept {
    margin: 12px 0 0;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.42);
    letter-spacing: 0.03em;
}

.login-form-panel {
    flex: 1 1 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 56px 48px;
    background: #fff;
    position: relative;
}

.login-form-panel::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12%;
    bottom: 12%;
    width: 1px;
    background: linear-gradient(
        180deg,
        transparent 0%,
        #e2e8ef 18%,
        #e2e8ef 82%,
        transparent 100%
    );
}

.login-form-inner {
    width: 100%;
    max-width: 360px;
}

.login-form {
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
}

.login-form .form-group {
    margin-bottom: 22px;
}

.login-form .form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #4a5563;
}

.login-form .form-control {
    height: 46px;
    padding: 0 14px;
    font-size: 15px;
    border: 1px solid #d8e0e8;
    border-radius: 2px;
    background: #fafbfc;
    transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.login-form .form-control:hover {
    border-color: #c5d0dc;
    background: #fff;
}

.login-form .form-control:focus {
    outline: none;
    border-color: var(--abys-navy);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(15, 46, 87, 0.07);
}

.login-form .form-check {
    margin-bottom: 28px;
}

.login-form .form-check label {
    font-size: 13px;
    color: #5c6670;
    text-transform: none;
    letter-spacing: normal;
    font-weight: 400;
}

.login-form .btn-primary {
    height: 46px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: 2px;
}

.login-footer {
    margin-top: 32px;
    text-align: left;
    font-size: 11px;
    color: #9aa5b1;
    letter-spacing: 0.08em;
    text-transform: lowercase;
}

@media (max-width: 900px) {
    .login-shell {
        flex-direction: column;
    }

    .login-brand-panel,
    .login-form-panel {
        flex: none;
        width: 100%;
        padding: 40px 28px;
    }

    .login-form-panel::before {
        display: none;
    }

    .login-logo {
        width: 148px;
        height: 148px;
        margin-bottom: 22px;
    }

    .login-system-title {
        font-size: 15px;
    }

    .login-support {
        margin-top: 28px;
        padding-top: 22px;
    }

    .login-footer {
        text-align: center;
    }
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--abys-text);
}

.form-control {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    font-size: 14px;
    border: 1px solid var(--abys-border);
    border-radius: 0;
    background: var(--abys-white);
    color: var(--abys-text);
}

.form-control:focus {
    outline: none;
    border-color: var(--abys-navy);
    box-shadow: 0 0 0 3px rgba(15, 46, 87, 0.08);
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 13px;
    color: var(--abys-muted);
}

.btn-primary {
    width: 100%;
    height: 44px;
    border: none;
    background: var(--abys-navy);
    color: var(--abys-white);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: background 0.15s ease;
}

.btn-primary:hover {
    background: var(--abys-navy-dark);
}

.validation-summary {
    margin-bottom: 16px;
    padding: 12px 14px;
    background: #fdf2f2;
    border: 1px solid #e8b4b4;
    color: #8b1a1a;
    font-size: 13px;
    list-style: none;
}

.validation-summary:empty {
    display: none;
    margin: 0;
    padding: 0;
    border: none;
}

.field-error {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: #8b1a1a;
}

/* Dashboard / App shell */
.app-body-root {
    background: #eef1f5;
    overflow: hidden;
    height: 100vh;
}

.app-shell {
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.app-topbar {
    height: 54px;
    background: var(--abys-navy);
    color: var(--abys-white);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px 0 14px;
    border-bottom: 1px solid #0a1f3d;
    flex-shrink: 0;
    z-index: 30;
}

.app-topbar-left {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.app-mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid #4a6278;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
    color: #fff;
}

.app-mobile-menu-btn svg {
    width: 18px;
    height: 18px;
}

.app-mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #6a849c;
}

.app-topbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    font-size: 14px;
}

.app-topbar-abys {
    font-weight: 700;
    letter-spacing: 0.12em;
}

.app-topbar-sep {
    color: #5a7390;
}

.app-topbar-org {
    color: #c8d4e0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.app-topbar-user {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.app-topbar-userinfo {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 1.25;
}

.app-topbar-name {
    font-size: 13px;
    font-weight: 600;
}

.app-topbar-email {
    font-size: 11px;
    color: #9eb0c2;
}

.btn-logout {
    background: transparent;
    border: 1px solid #4a6278;
    color: var(--abys-white);
    padding: 7px 14px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    cursor: pointer;
}

.btn-logout:hover {
    background: #243447;
}

.app-frame {
    flex: 1;
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    min-height: 0;
    overflow: hidden;
    transition: grid-template-columns 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-shell.sidebar-collapsed .app-frame {
    grid-template-columns: 64px minmax(0, 1fr);
}

.app-sidebar {
    width: 260px;
    min-width: 260px;
    background: #fff;
    border-right: 1px solid var(--abys-border);
    display: flex;
    flex-direction: column;
    z-index: 40;
    overflow: hidden;
    transition: width 0.28s cubic-bezier(0.4, 0, 0.2, 1), min-width 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-shell.sidebar-collapsed .app-sidebar {
    width: 64px;
    min-width: 64px;
    opacity: 1;
    pointer-events: auto;
}

.app-sidebar-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 10px;
    border-bottom: 1px solid #edf1f5;
    flex-shrink: 0;
}

.sidebar-collapse-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    border: 1px solid var(--abys-border);
    border-radius: 3px;
    background: #f8fafc;
    color: #5c6670;
    cursor: pointer;
    padding: 0;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.sidebar-collapse-btn:hover {
    background: #eef3f9;
    border-color: #c5d4e8;
    color: var(--abys-navy);
}

.sidebar-collapse-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.28s ease;
}

.app-shell.sidebar-collapsed .sidebar-collapse-icon {
    transform: rotate(180deg);
}

.app-sidebar-search {
    flex: 1;
    min-width: 0;
}

.app-sidebar-search-input {
    width: 100%;
    height: 38px;
    padding: 0 12px;
    border: 1px solid var(--abys-border);
    border-radius: 3px;
    background: #f8fafc;
    font-size: 13px;
    color: var(--abys-text);
}

.app-sidebar-search-input::placeholder {
    color: #9aa5b1;
}

.app-sidebar-search-input:focus {
    outline: none;
    border-color: var(--abys-navy);
    background: #fff;
}

.app-sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 6px 0 16px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.nav-home {
    padding: 4px 8px 10px;
    border-bottom: 1px solid #edf1f5;
    margin-bottom: 6px;
}

.nav-home-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 10px;
    font-size: 13px;
    font-weight: 600;
    color: #2f3a45;
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: background 0.12s ease, border-color 0.12s ease;
}

.nav-home-link:hover {
    background: #f4f7fa;
    color: var(--abys-navy);
}

.nav-home-link.is-active {
    background: #eef3f9;
    border-left-color: var(--abys-navy);
    color: var(--abys-navy);
}

.nav-home-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    color: #6b7785;
}

.nav-home-link.is-active .nav-home-icon {
    color: var(--abys-navy);
}

.nav-home-icon .nav-icon {
    width: 20px;
    height: 20px;
}

.nav-home-text {
    flex: 1;
    min-width: 0;
}

.app-shell.sidebar-collapsed .nav-home {
    padding: 4px 0 8px;
    margin-bottom: 4px;
}

.app-shell.sidebar-collapsed .nav-home-link {
    justify-content: center;
    padding: 12px 0;
    gap: 0;
}

.app-shell.sidebar-collapsed .nav-home-text {
    display: none;
}

.app-shell.sidebar-collapsed.has-nav-open .nav-home-text {
    display: inline;
}

.app-shell.sidebar-collapsed.has-nav-open .nav-home-link {
    justify-content: flex-start;
    padding: 10px 12px;
    gap: 10px;
}

.nav-home.is-hidden {
    display: none;
}

.app-sidebar-nav::-webkit-scrollbar {
    display: none;
}

.nav-group.is-filter-hidden {
    display: none;
}

.nav-item.is-hidden {
    display: none;
}

.nav-group {
    margin-bottom: 4px;
}

.nav-group-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px 6px;
    border: none;
    background: transparent;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #8a96a3;
    cursor: pointer;
    text-align: left;
}

.nav-group-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    color: #6b7785;
}

.nav-group-icon .nav-icon {
    width: 20px;
    height: 20px;
}

.nav-group-label {
    flex: 1;
    min-width: 0;
}

.nav-group.is-active-group .nav-group-icon {
    color: var(--abys-navy);
}

.nav-group.is-active-group .nav-group-toggle {
    color: var(--abys-navy);
}

.app-shell.sidebar-collapsed .app-sidebar-toolbar {
    justify-content: center;
    padding: 10px 0;
}

.app-shell.sidebar-collapsed .app-sidebar-search {
    display: none;
}

.app-shell.sidebar-collapsed .sidebar-collapse-btn {
    width: 40px;
    height: 40px;
}

.app-shell.sidebar-collapsed .nav-group-toggle {
    justify-content: center;
    padding: 14px 0;
    gap: 0;
}

.app-shell.sidebar-collapsed .nav-group-label,
.app-shell.sidebar-collapsed .nav-group-chevron {
    display: none;
}

.app-shell.sidebar-collapsed .nav-group-icon {
    width: 24px;
    height: 24px;
}

.app-shell.sidebar-collapsed .nav-group-icon .nav-icon {
    width: 22px;
    height: 22px;
}

.app-shell.sidebar-collapsed.has-nav-open .app-frame {
    grid-template-columns: 240px minmax(0, 1fr);
}

.app-shell.sidebar-collapsed.has-nav-open .app-sidebar {
    width: 240px;
    min-width: 240px;
}

.app-shell.sidebar-collapsed.has-nav-open .nav-group-toggle {
    justify-content: flex-start;
    padding: 10px 12px 6px;
    gap: 10px;
}

.app-shell.sidebar-collapsed.has-nav-open .nav-group-label {
    display: inline;
}

.app-shell.sidebar-collapsed.has-nav-open .nav-group-chevron {
    display: block;
}

.nav-group-flyout {
    position: static;
    overflow: hidden;
}

.nav-group-flyout-title {
    display: none;
}

.app-shell.sidebar-collapsed .nav-group-flyout {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    min-width: 0;
}

.app-shell.sidebar-collapsed .nav-group:not(.is-collapsed) .nav-group-flyout {
    display: block;
}

.app-shell.sidebar-collapsed .nav-group-list {
    padding: 0 6px 6px;
}

.app-shell.sidebar-collapsed .nav-group.is-active-group .nav-group-toggle {
    background: #eef3f9;
}

.app-shell.sidebar-collapsed .nav-group.is-active-group .nav-group-icon {
    color: var(--abys-navy);
}

.nav-group-chevron {
    width: 6px;
    height: 6px;
    margin-left: auto;
    flex-shrink: 0;
    border-right: 1.5px solid #8a96a3;
    border-bottom: 1.5px solid #8a96a3;
    transform: rotate(45deg);
    transition: transform 0.15s ease;
    margin-top: -2px;
}

.nav-group.is-collapsed .nav-group-chevron {
    transform: rotate(-45deg);
}

.nav-group.is-collapsed .nav-group-list {
    display: none;
}

.nav-group-list {
    list-style: none;
    margin: 0;
    padding: 0 8px 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 9px 10px;
    margin-bottom: 2px;
    font-size: 13px;
    color: #2f3a45;
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: background 0.12s ease, border-color 0.12s ease;
}

.nav-link:hover {
    background: #f4f7fa;
    color: var(--abys-navy);
}

.nav-link.is-active {
    background: #eef3f9;
    border-left-color: var(--abys-navy);
    color: var(--abys-navy);
    font-weight: 600;
}

.nav-link-text {
    min-width: 0;
}

.nav-link-badge {
    flex-shrink: 0;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #8a96a3;
    padding: 2px 6px;
    border: 1px solid #dde4eb;
    background: #f8fafc;
}

.nav-link.is-active .nav-link-badge {
    color: var(--abys-navy);
    border-color: #c5d4e8;
    background: #fff;
}

.app-sidebar-backdrop {
    display: none;
}

.app-content {
    flex: 1;
    min-width: 0;
    min-height: 0;
    padding: 28px 28px 40px;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.app-content::-webkit-scrollbar {
    display: none;
}

.page-header {
    margin-bottom: 24px;
}

.page-title {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 700;
    color: var(--abys-navy);
    letter-spacing: -0.02em;
}

.page-subtitle {
    margin: 0;
    font-size: 14px;
    color: var(--abys-muted);
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: #fff;
    border: 1px solid var(--abys-border);
    padding: 18px 20px;
}

.stat-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #8a96a3;
    margin-bottom: 8px;
}

.stat-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--abys-navy);
    line-height: 1;
}

.stat-value-text {
    font-size: 16px;
    line-height: 1.3;
}

.module-section {
    margin-bottom: 28px;
}

.module-section-title {
    margin: 0 0 12px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #7a8794;
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
}

.module-card {
    display: block;
    background: #fff;
    border: 1px solid var(--abys-border);
    padding: 16px 18px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.module-card:hover {
    border-color: #b8c9db;
    box-shadow: 0 4px 16px rgba(15, 46, 87, 0.06);
}

.module-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

.module-card-head h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--abys-navy);
}

.module-status {
    flex-shrink: 0;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #8a96a3;
    padding: 3px 7px;
    border: 1px solid #dde4eb;
    background: #f8fafc;
}

.module-status.is-live {
    color: #1a5c3a;
    border-color: #b8dcc8;
    background: #f0faf4;
}

.module-card-desc {
    margin: 0;
    font-size: 12px;
    line-height: 1.5;
    color: var(--abys-muted);
}

.module-placeholder {
    background: #fff;
    border: 1px solid var(--abys-border);
    padding: 40px 32px;
    max-width: 640px;
}

.module-placeholder-label {
    margin: 0 0 8px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #8a96a3;
}

.module-placeholder-inner h2 {
    margin: 0 0 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--abys-navy);
}

.module-placeholder-inner p {
    margin: 0 0 24px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--abys-muted);
}

.btn-secondary {
    display: inline-block;
    padding: 10px 18px;
    background: var(--abys-navy);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.btn-secondary:hover {
    background: var(--abys-navy-dark);
    color: #fff;
}

@media (max-width: 1024px) {
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .app-mobile-menu-btn {
        display: inline-flex;
    }

    .app-frame {
        grid-template-columns: 1fr !important;
    }

    .app-shell.sidebar-collapsed .app-sidebar {
        width: 260px;
        min-width: 260px;
    }

    .sidebar-collapse-btn {
        display: none;
    }

    .app-sidebar-toolbar {
        padding: 12px 14px;
    }

    .app-sidebar-search {
        display: block !important;
    }

    .app-shell.sidebar-collapsed .app-sidebar-search {
        display: block !important;
    }

    .app-shell.sidebar-collapsed .nav-group-label,
    .app-shell.sidebar-collapsed .nav-group-chevron {
        display: inline;
    }

    .app-shell.sidebar-collapsed .nav-group-toggle {
        justify-content: space-between;
        padding: 10px 14px 6px;
        gap: 10px;
    }

    .app-shell.sidebar-collapsed .nav-group-flyout {
        position: static;
        box-shadow: none;
        border: none;
        min-width: 0;
    }

    .app-shell.sidebar-collapsed .nav-group.is-collapsed .nav-group-flyout {
        display: none;
    }

    .app-sidebar {
        position: fixed;
        top: 54px;
        left: 0;
        bottom: 0;
        transform: translateX(-100%);
        transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 12px 0 32px rgba(10, 22, 40, 0.18);
    }

    .app-sidebar.is-open {
        transform: translateX(0);
    }

    .app-sidebar-backdrop {
        display: block;
        position: fixed;
        inset: 54px 0 0 0;
        background: rgba(10, 22, 40, 0.45);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.28s ease;
        z-index: 35;
    }

    .app-sidebar-backdrop.is-visible {
        opacity: 1;
        pointer-events: auto;
    }

    .app-topbar-userinfo {
        display: none;
    }

    .app-content {
        padding: 20px 16px 32px;
    }

    .module-grid {
        grid-template-columns: 1fr;
    }
}