@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&display=swap');

/* ========================================
   1. LIGHT THEME (DEFAULT)
======================================== */
:root,
[data-theme="light"] {
    color-scheme: light;

    --ink: #182033;
    --muted: #758096;
    --line: #e9edf4;
    --primary: #5145e5;
    --surface: #ffffff;
    --page-bg: #f5f7fb;
    --input-bg: #ffffff;
    --navbar-bg: #171d31;
    --shadow: 0 12px 36px rgba(20,32,60,.045);

    --bs-body-color: var(--ink);
    --bs-body-bg: var(--page-bg);
    --bs-border-color: var(--line);
}

/* ========================================
   2. DARK THEME
======================================== */
[data-theme="dark"] {
    color-scheme: dark;

    --ink: #e6eaf2;
    --muted: #a0abc0;
    --line: #30394c;
    --primary: #8278ff;
    --surface: #20293b;
    --page-bg: #141b29;
    --input-bg: #192234;
    --navbar-bg: #101624;
    --shadow: 0 12px 36px rgba(0,0,0,.18);

    --bs-body-color: var(--ink);
    --bs-body-bg: var(--page-bg);
    --bs-border-color: var(--line);
}

/* ========================================
   3. GLOBAL
======================================== */
* {
    box-sizing: border-box;
}

html {
    transition: background-color .2s ease;
}

body {
    font-family: 'DM Sans', system-ui, sans-serif;
    color: var(--ink);
    background: var(--page-bg);
    transition: background-color .2s ease, color .2s ease;
}

.app-body {
    min-height: 100vh;
}

a {
    color: var(--primary);
}

.text-secondary,
.text-muted {
    color: var(--muted) !important;
}

.border,
.border-top,
.border-bottom {
    border-color: var(--line) !important;
}

/* ========================================
   4. NAVBAR
======================================== */
.app-navbar {
    background: var(--navbar-bg);
    box-shadow: 0 8px 30px rgba(15,23,42,.12);
}

.navbar-brand {
    letter-spacing: -.03em;
}

.nav-link {
    color: rgba(255,255,255,.72) !important;
}

.nav-link:hover {
    color: #fff !important;
}

/* ========================================
   5. BUTTONS
======================================== */
.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 7px 16px rgba(81,69,229,.16);
}

.btn-primary:hover {
    background: #4035c8;
    border-color: #4035c8;
}

[data-theme="dark"] .btn-primary:hover {
    background: #7167ee;
    border-color: #7167ee;
}

.btn-outline-secondary {
    color: var(--ink);
    border-color: var(--line);
}

.btn-outline-secondary:hover {
    color: var(--ink);
    background: var(--line);
    border-color: var(--line);
}

/* ========================================
   6. FORMS
======================================== */
.form-control,
.form-select {
    color: var(--ink);
    background-color: var(--input-bg);
    border-color: var(--line);
    border-radius: 10px;
    padding: .75rem .9rem;
}

.form-control:focus,
.form-select:focus {
    color: var(--ink);
    background-color: var(--input-bg);
    border-color: #aaa4ff;
    box-shadow: 0 0 0 .2rem rgba(81,69,229,.1);
}

.form-control::placeholder {
    color: var(--muted);
    opacity: .8;
}

.form-label {
    font-weight: 600;
    font-size: .9rem;
}

[data-theme="dark"] .form-control:disabled,
[data-theme="dark"] .form-select:disabled {
    background-color: #252e40;
    color: var(--muted);
}

/* ========================================
   7. CARDS
======================================== */
.auth-card,
.content-card,
.stat-card {
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: 2.2rem;
}

.auth-card-wide {
    max-width: 560px;
}

.content-card {
    padding: 1.6rem;
}

.stat-card {
    padding: 1.35rem;
    height: 100%;
}

/* ========================================
   8. TEXT & DECORATION
======================================== */
.brand-mark {
    height: 46px;
    width: 46px;
    border-radius: 14px;
    background: linear-gradient(135deg,#6559f5,#3b82f6);
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 1.35rem;
    font-weight: 800;
    box-shadow: 0 8px 20px #5145e533;
}

.eyebrow {
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .14em;
    color: var(--muted);
}

.stat-label {
    font-size: .68rem;
    letter-spacing: .12em;
    font-weight: 800;
    color: var(--muted);
}

.stat-value {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -.04em;
    margin: .55rem 0 .2rem;
    overflow-wrap: anywhere;
}

.announcement {
    display: flex;
    gap: 14px;
    padding: 1rem 0;
    border-top: 1px solid var(--line);
    line-height: 1.65;
}

.announcement-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #6258ed;
    margin-top: .45rem;
    flex: 0 0 auto;
}

.avatar {
    height: 58px;
    width: 58px;
    border-radius: 18px;
    background: #eeedff;
    color: var(--primary);
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    font-weight: 800;
}

.password-form {
    max-width: 520px;
}

/* ========================================
   9. TABLES
======================================== */
.table {
    --bs-table-color: var(--ink);
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--line);
    --bs-table-hover-color: var(--ink);
    --bs-table-hover-bg: rgba(130,120,255,.07);
    color: var(--ink);
}

.table > :not(caption) > * > * {
    background-color: transparent;
    color: var(--ink);
    border-bottom-color: var(--line);
}

/* ========================================
   10. ALERTS & COMPONENTS
======================================== */
.alert {
    border-radius: 12px;
}

[data-theme="dark"] .alert-light {
    color: var(--ink);
    background: #252f43;
    border-color: var(--line);
}

[data-theme="dark"] .bg-light {
    background-color: #252f43 !important;
    color: var(--ink) !important;
}

[data-theme="dark"] .dropdown-menu {
    background: var(--surface);
    border-color: var(--line);
}

[data-theme="dark"] .dropdown-item {
    color: var(--ink);
}

[data-theme="dark"] .dropdown-item:hover {
    background: #303b50;
    color: #fff;
}

[data-theme="dark"] .list-group-item {
    color: var(--ink);
    background: var(--surface);
    border-color: var(--line);
}

/* ========================================
   11. RESPONSIVE
======================================== */
@media(max-width:575px) {
    .auth-card {
        padding: 1.5rem;
    }

    .content-card {
        padding: 1.2rem;
    }

    .stat-card {
        padding: 1.1rem;
    }
}

.theme-toggle-guest {
    position: fixed;
    top: 15px;
    right: 15px;
    z-index: 1050;
    border-radius: 20px;
}

/* ========================================
   AUTH PAGE CENTERING FIX
======================================== */

.auth-wrap {
    width: 100%;
    min-height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    margin-left: auto;
    margin-right: auto;
}

.auth-wrap > .auth-card {
    flex: 0 1 440px;
    width: 100%;
    margin: 0 auto;
}

.auth-wrap > .auth-card-wide {
    flex-basis: 560px;
    max-width: 560px;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    margin-left: auto;
    margin-right: auto;
}

.auth-card-wide {
    max-width: 560px;
}

/* ========================================
   12. RESPONSIVE SIDEBAR
======================================== */

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

.app-sidebar {
    --bs-offcanvas-width: 260px;
    --bs-offcanvas-bg: var(--surface);
    --bs-offcanvas-color: var(--ink);

    width: 260px;
    min-width: 260px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;

    color: var(--ink);
    background-color: var(--surface);
    border-right: 1px solid var(--line);
}

.sidebar-header {
    min-height: 85px;
    padding: 1.2rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--surface);
    border-bottom: 1px solid var(--line);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    text-decoration: none;
}

.sidebar-brand:hover { color: var(--primary); }
.sidebar-brand strong { display: block; font-size: .95rem; font-weight: 800; }
.sidebar-brand small { display: block; margin-top: 2px; font-size: .72rem; color: var(--muted); }
.sidebar-brand .brand-mark { flex-shrink: 0; }

.sidebar-content {
    flex: 1;
    min-height: 0;
    padding: 1.5rem 1rem;
    overflow-y: auto;
    background-color: var(--surface);
}

.sidebar-section-title {
    margin: 0 0 .8rem .75rem;
    color: var(--muted);
    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .13em;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 5px; }

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: .8rem .9rem;
    border-radius: 11px;
    color: var(--muted);
    text-decoration: none;
    font-size: .88rem;
    font-weight: 600;
    transition: background-color .2s ease, color .2s ease, transform .2s ease;
}

.sidebar-link:hover {
    color: var(--primary);
    background: rgba(81,69,229,.07);
    transform: translateX(2px);
}

.sidebar-link.active {
    color: var(--primary);
    background: rgba(81,69,229,.11);
    font-weight: 700;
}

.sidebar-icon {
    width: 22px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
}

.sidebar-footer {
    padding: 1rem;
    background-color: var(--surface);
    border-top: 1px solid var(--line);
}

.sidebar-footer-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .25rem .5rem 1rem;
}

.sidebar-footer-label { color: var(--muted); font-size: .8rem; font-weight: 600; }

.sidebar-theme-button {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--ink);
    background: var(--page-bg);
    cursor: pointer;
}

.sidebar-theme-button:hover { border-color: var(--primary); }

.sidebar-logout {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 13px;
    padding: .8rem .9rem;
    border: 0;
    border-radius: 11px;
    color: #dc5555;
    background: transparent;
    font-size: .88rem;
    font-weight: 600;
    text-align: left;
    transition: background-color .2s ease;
}

.sidebar-logout:hover { background: rgba(220,85,85,.09); }

.app-main {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.app-content {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 2rem;
}

.mobile-header {
    min-height: 64px;
    padding: .7rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--navbar-bg);
    border-bottom: 1px solid rgba(255,255,255,.12);
}

.mobile-header strong {
    flex: 1;
    color: #fff;
    font-size: .95rem;
    font-weight: 800;
}

.mobile-menu-button,
.mobile-theme-button {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255,255,255,.25);
    border-radius: 10px;
    color: #fff;
    background: transparent;
    font-size: 1.2rem;
}

.mobile-menu-button:hover,
.mobile-theme-button:hover {
    color: #fff;
    border-color: var(--primary);
}

@media (min-width: 992px) {
    .app-sidebar {
        position: sticky;
        top: 0;
        height: 100vh;
        align-self: flex-start;
    }
}

@media (max-width: 991.98px) {
    .app-sidebar {
        width: 260px;
        min-width: 0;
        max-width: 85vw;
        height: 100vh;
        height: 100dvh;
        background-color: var(--surface);
        box-shadow: 10px 0 35px rgba(0,0,0,.12);
    }

    .app-content { padding: 1.5rem; }
}

@media (max-width: 575px) {
    .app-content { padding: 1rem; }
    .mobile-header { padding: .65rem .85rem; }
}