/* ═══════════════════════════════════════════════
   NORTH SYSTEMS — Swiss Brutalist Minimal
   Pure Black & White | No gradients | No emojis
   ═══════════════════════════════════════════════ */

/* ─── Reset & Base ─── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-100: #f5f5f5;
    --gray-200: #e0e0e0;
    --gray-300: #c0c0c0;
    --gray-400: #a0a0a0;
    --gray-500: #808080;
    --gray-600: #606060;
    --gray-700: #404040;
    --gray-800: #1a1a1a;
    --gray-900: #0d0d0d;

    --sidebar-w: 220px;
    --radius: 0px;
    --transition: 180ms ease;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--black);
    color: var(--white);
    min-height: 100vh;
    overflow-x: hidden;
}

.hidden {
    display: none !important;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--black);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-700);
}

/* ═══════════════════════════════════════════════
   PASSWORD GATE
   ═══════════════════════════════════════════════ */
.gate {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.gate-card {
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.gate-title {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.gate-slash {
    color: var(--gray-500);
    font-weight: 300;
}

.gate-subtitle {
    font-size: 0.85rem;
    color: var(--gray-400);
    margin-bottom: 40px;
    font-weight: 400;
    letter-spacing: 0.02em;
}

.gate-input {
    display: block;
    width: 100%;
    padding: 14px 16px;
    font-size: 0.95rem;
    font-family: inherit;
    background: var(--black);
    color: var(--white);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius);
    outline: none;
    transition: border-color var(--transition);
    margin-bottom: 16px;
    letter-spacing: 0.08em;
}

.gate-input:focus {
    border-color: var(--white);
}

.gate-btn {
    display: block;
    width: 100%;
    padding: 14px;
    font-size: 0.9rem;
    font-family: inherit;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    background: var(--white);
    color: var(--black);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: opacity var(--transition);
}

.gate-btn:hover {
    opacity: 0.85;
}

.gate-error {
    margin-top: 20px;
    font-size: 0.82rem;
    color: var(--gray-300);
    min-height: 20px;
    transition: opacity var(--transition);
}

/* ═══════════════════════════════════════════════
   APP SHELL
   ═══════════════════════════════════════════════ */
.app {
    display: flex;
    min-height: 100vh;
}

/* ─── Sidebar ─── */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-w);
    height: 100vh;
    background: var(--black);
    border-right: 1px solid var(--gray-800);
    display: flex;
    flex-direction: column;
    padding: 40px 0 24px;
    z-index: 100;
}

.sidebar-brand {
    font-size: 1.15rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height: 1.15;
    padding: 0 28px;
    margin-bottom: 48px;
}

.sidebar-nav {
    list-style: none;
    flex: 1;
}

.nav-btn {
    display: block;
    width: 100%;
    padding: 12px 28px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--gray-400);
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: color var(--transition), background var(--transition);
}

.nav-btn:hover {
    color: var(--white);
    background: var(--gray-900);
}

.nav-btn.active {
    color: var(--white);
    background: var(--gray-800);
}

.sidebar-footer {
    padding: 0 28px;
    font-size: 0.7rem;
    color: var(--gray-600);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ─── Mobile Header ─── */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--black);
    border-bottom: 1px solid var(--gray-800);
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 200;
}

.mobile-brand {
    font-size: 0.9rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--white);
    transition: transform var(--transition), opacity var(--transition);
}

.mobile-nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--black);
    border-bottom: 1px solid var(--gray-800);
    padding: 12px 0;
    z-index: 199;
    display: none;
    flex-direction: column;
}

.mobile-nav:not(.hidden) {
    display: flex;
}

.mobile-nav .nav-btn {
    padding: 12px 20px;
}

/* ─── Main Content ─── */
.main {
    margin-left: var(--sidebar-w);
    flex: 1;
    padding: 60px 48px;
    min-height: 100vh;
}

/* ─── Pages ─── */
.page {
    display: none;
    animation: fadeIn 250ms ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ═══════════════════════════════════════════════
   HOME PAGE
   ═══════════════════════════════════════════════ */
.page-hero-title {
    font-size: 3.4rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    text-transform: uppercase;
    line-height: 1;
    margin-bottom: 8px;
}

.page-hero-subtitle {
    font-size: 1rem;
    font-weight: 400;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 32px;
}

.page-hero-desc {
    max-width: 520px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--gray-400);
    margin-bottom: 56px;
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--gray-800);
    border: 1px solid var(--gray-800);
}

.stat-card {
    background: var(--black);
    padding: 40px 28px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: background var(--transition);
}

.stat-card:hover {
    background: var(--gray-900);
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--gray-400);
}

/* ═══════════════════════════════════════════════
   DATABASE PAGES
   ═══════════════════════════════════════════════ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-title {
    font-size: 2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.03em;
}

.add-btn {
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 10px 24px;
    background: var(--white);
    color: var(--black);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: opacity var(--transition);
}

.add-btn:hover {
    opacity: 0.85;
}

.search-input {
    display: block;
    width: 100%;
    padding: 14px 16px;
    font-family: inherit;
    font-size: 0.9rem;
    background: var(--black);
    color: var(--white);
    border: 1px solid var(--gray-800);
    border-radius: var(--radius);
    outline: none;
    margin-bottom: 32px;
    transition: border-color var(--transition);
    letter-spacing: 0.02em;
}

.search-input:focus {
    border-color: var(--gray-500);
}

.search-input::placeholder {
    color: var(--gray-600);
}

/* ─── Card Grid ─── */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1px;
    background: var(--gray-800);
    border: 1px solid var(--gray-800);
}

.card-grid:empty {
    display: none;
}

.card {
    background: var(--black);
    padding: 28px 24px;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card:hover {
    background: var(--gray-900);
}

.card-title {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.card-desc {
    font-size: 0.82rem;
    color: var(--gray-400);
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: auto;
    padding-top: 8px;
}

.card-date {
    font-size: 0.7rem;
    color: var(--gray-600);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.card-tag {
    font-size: 0.68rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 8px;
    background: var(--gray-800);
    color: var(--gray-300);
}

.card-status {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 3px 10px;
    border: 1px solid var(--gray-600);
    color: var(--gray-300);
}

.card-status[data-status="Active"] {
    border-color: var(--white);
    color: var(--white);
}

.card-status[data-status="Paused"] {
    border-color: var(--gray-500);
    color: var(--gray-500);
}

.card-status[data-status="Completed"] {
    border-color: var(--gray-300);
    color: var(--gray-300);
}

.card-status[data-status="Killed"] {
    border-color: var(--gray-700);
    color: var(--gray-700);
}

.empty-state {
    color: var(--gray-600);
    font-size: 0.85rem;
    padding: 40px 0;
    text-align: center;
    letter-spacing: 0.02em;
}

/* ═══════════════════════════════════════════════
   DETAIL / EDIT OVERLAY
   ═══════════════════════════════════════════════ */
.overlay {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: overlayIn 200ms ease;
}

@keyframes overlayIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.overlay-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
}

.overlay-card {
    position: relative;
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--black);
    border: 1px solid var(--gray-800);
    padding: 48px 40px;
}

.overlay-title {
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 36px;
}

.form-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-400);
    margin-bottom: 8px;
}

.form-hint {
    font-weight: 400;
    color: var(--gray-600);
    text-transform: none;
    letter-spacing: 0.02em;
}

.form-input,
.form-textarea,
.form-select {
    display: block;
    width: 100%;
    padding: 12px 14px;
    font-family: inherit;
    font-size: 0.9rem;
    background: var(--black);
    color: var(--white);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius);
    outline: none;
    margin-bottom: 24px;
    transition: border-color var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--white);
}

.form-textarea {
    resize: vertical;
    line-height: 1.6;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23808080' stroke-width='1.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.form-select option {
    background: var(--black);
    color: var(--white);
}

.form-group {
    margin-bottom: 0;
}

.overlay-actions {
    display: flex;
    gap: 12px;
    margin-top: 36px;
    flex-wrap: wrap;
}

.btn-save,
.btn-cancel,
.btn-delete {
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: opacity var(--transition);
}

.btn-save {
    background: var(--white);
    color: var(--black);
}

.btn-cancel {
    background: transparent;
    color: var(--gray-400);
    border: 1px solid var(--gray-700);
}

.btn-delete {
    background: transparent;
    color: var(--gray-500);
    border: 1px solid var(--gray-700);
    margin-left: auto;
}

.btn-save:hover {
    opacity: 0.85;
}

.btn-cancel:hover {
    color: var(--white);
    border-color: var(--gray-500);
}

.btn-delete:hover {
    color: var(--white);
    border-color: var(--white);
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .mobile-header {
        display: flex;
    }

    .main {
        margin-left: 0;
        padding: 80px 20px 40px;
    }

    .page-hero-title {
        font-size: 2.2rem;
    }

    .stat-cards {
        grid-template-columns: 1fr;
    }

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

    .overlay-card {
        padding: 32px 20px;
    }
}

@media (min-width: 769px) {

    .mobile-header,
    .mobile-nav {
        display: none !important;
    }
}