/* =========================================
   1. MODERNE DESIGN SYSTEM TOKENS
   ========================================= */
:root {
    /* --- MODERNE FARVE PALET --- */
    --color-primary:        #111111;
    --color-primary-light:  #f2f2f2;
    --color-primary-alpha:  rgba(17, 17, 17, 0.08);

    --color-neutral-900:    #0d0d0d;
    --color-neutral-800:    #1a1a1a;
    --color-neutral-700:    #2b2b2b;
    --color-neutral-600:    #3d3d3d;
    --color-neutral-500:    #5c5c5c;
    --color-neutral-400:    #8a8a8a;
    --color-neutral-300:    #bdbdbd;
    --color-neutral-200:    #dedede;
    --color-neutral-100:    #f5f5f5;

    --color-bg-light:       #ffffff;
    --color-bg-dark:        #0d0d0d;

    --color-success:        #22c55e;
    --color-warning:        #eab308;
    --color-danger:         #ef4444;
    --color-info:           #1a1a1a;

    --color-white:          #ffffff;
    --color-black:          #000000;

    /* --- TYPOGRAFI --- */
    --font-family:          'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs:         0.75rem;
    --font-size-sm:         0.875rem;
    --font-size-base:       1rem;
    --font-size-lg:         1.125rem;
    --font-size-xl:         1.25rem;
    --font-size-2xl:        1.5rem;
    --font-size-3xl:        1.875rem;
    --font-size-4xl:        2.25rem;
    --font-size-5xl:        3rem;

    --font-weight-300:      300;
    --font-weight-400:      400;
    --font-weight-500:      500;
    --font-weight-600:      600;
    --font-weight-700:      700;
    --font-weight-800:      800;

    /* --- SPACING --- */
    --space-0:              0;
    --space-1:              0.25rem;
    --space-2:              0.5rem;
    --space-3:              0.75rem;
    --space-4:              1rem;
    --space-6:              1.5rem;
    --space-8:              2rem;
    --space-12:             3rem;
    --space-16:             4rem;
    --space-20:             5rem;

    /* --- BORDER RADIUS --- */
    --radius-sm:            0.25rem;
    --radius-md:            0.5rem;
    --radius-lg:            0.75rem;
    --radius-xl:            1rem;
    --radius-full:          9999px;

    /* --- SHADOW --- */
    --shadow-sm:            0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md:            0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg:            0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-primary:       0 10px 25px -5px rgba(43, 108, 238, 0.2);

    /* --- TRANSITIONS --- */
    --transition-fast:      150ms ease-in-out;
    --transition-base:      250ms ease-in-out;
    --transition-slow:      350ms ease-in-out;
}

/* =========================================
   2. BASE STYLES
   ========================================= */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-400);
    line-height: 1.6;
    color: var(--color-neutral-700);
    background: var(--color-bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-700);
    color: var(--color-neutral-900);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-primary);
    opacity: 0.8;
}

.destructive {
    color: var(--color-danger);
}

.edit {
    color: var(--color-info);
}

/* =========================================
   3. LAYOUT
   ========================================= */

.dev-banner {
    background: var(--color-danger);
    color: var(--color-white);
    text-align: center;
    padding: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-600);
}

.container-main {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    padding: var(--space-8);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Section Headers */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-700);
    color: var(--color-neutral-900);
    margin: 0;
}

.section-actions {
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

/* =========================================
   4. NAVIGATION
   ========================================= */

.navbar-app {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-neutral-200);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: 64px;
}

.navbar-brand {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-700);
    color: var(--color-neutral-900);
    text-decoration: none;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    color: var(--color-neutral-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.mobile-menu-toggle:hover {
    background: var(--color-neutral-100);
    color: var(--color-primary);
}

.mobile-menu-toggle .material-icons {
    font-size: 28px;
}

.nav-menu-wrapper {
    display: contents;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    list-style: none;
    margin: 0;
    padding: 0;
    justify-content: center;
    grid-column: 2;
}

.nav-user-menu {
    display: flex;
    justify-content: flex-end;
    grid-column: 3;
}

.nav-item {
    display: flex;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    color: var(--color-neutral-600);
    font-weight: var(--font-weight-500);
    font-size: var(--font-size-sm);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-link.active {
    color: var(--color-primary);
    font-weight: var(--font-weight-600);
}

/* Dropdown */
.dropdown-wrapper {
    position: relative;
    display: inline-block;
}

.dropdown-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border: none;
    color: var(--color-neutral-600);
    font-weight: var(--font-weight-500);
    font-size: var(--font-size-sm);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.dropdown-trigger:hover {
    background: transparent;
    color: var(--color-primary);
}

.dropdown-menu-custom {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 200px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-neutral-200);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    padding: var(--space-2);
    z-index: 1001;
}

.dropdown-menu-custom.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: var(--color-neutral-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.dropdown-menu-link:hover {
    background: transparent;
    color: var(--color-primary);
}

/* =========================================
   5. BUTTONS
   ========================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-600);
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary:hover:not(.disabled) {
    background: var(--color-primary);
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
}

.btn-secondary {
    background: var(--color-neutral-600);
    color: var(--color-white);
}

.btn-secondary:hover:not(.disabled) {
    background: var(--color-neutral-700);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-neutral-600);
    border: 1px solid var(--color-neutral-300);
}

.btn-ghost:hover:not(.disabled) {
    background: var(--color-neutral-100);
    border-color: var(--color-neutral-400);
}

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

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

.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Loading Button */
.submit-btn-loading {
    position: relative;
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
    border-radius: var(--radius-full);
    animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
    to { transform: rotate(360deg); }
}

.d-none {
    display: none !important;
}

/* =========================================
   6. FORMS
   ========================================= */

.mb-3 {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-600);
    color: var(--color-neutral-700);
}

.form-control,
.form-select {
    display: block;
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    line-height: 1.5;
    color: var(--color-neutral-900);
    background: var(--color-white);
    border: 1px solid var(--color-neutral-300);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-alpha);
}

.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--color-danger);
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.invalid-feedback {
    display: block;
    margin-top: var(--space-2);
    font-size: var(--font-size-xs);
    color: var(--color-danger);
}

/* Checkbox */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.form-check-input {
    width: 20px;
    height: 20px;
    cursor: pointer;
    border: 2px solid var(--color-neutral-300);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.form-check-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-alpha);
}

.form-check-label {
    margin-bottom: 0;
    cursor: pointer;
}

.form-actions {
    margin-top: var(--space-4);
    width: 100%;
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
}

/* =========================================
   7. CARDS
   ========================================= */
.card-deck {
    display: flex;
    justify-content: space-between;
    flex-direction: row;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

.card {
    width: 100%;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--color-neutral-200);
}

.card-body {
    padding: var(--space-6);
}

/* =========================================
   8. TABLES
   ========================================= */

/* Alerts */
.alert {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-6);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-500);
    border: 1px solid;
}

.alert .material-icons {
    font-size: 20px;
}

.alert-danger {
    background: var(--color-neutral-100);
    border-color: var(--color-neutral-300);
    color: var(--color-neutral-900);
}

.alert-danger .material-icons {
    color: var(--color-neutral-900);
}

.alert-success {
    background: var(--color-neutral-100);
    border-color: var(--color-neutral-300);
    color: var(--color-neutral-900);
}

.alert-success .material-icons {
    color: var(--color-neutral-900);
}

.alert-warning {
    background: var(--color-neutral-100);
    border-color: var(--color-neutral-300);
    color: var(--color-neutral-900);
}

.alert-warning .material-icons {
    color: var(--color-neutral-900);
}

.alert-info {
    background: var(--color-neutral-100);
    border-color: var(--color-neutral-300);
    color: var(--color-neutral-900);
}

.alert-info .material-icons {
    color: var(--color-neutral-900);
}

.data-table-container {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-neutral-200);
    overflow: hidden;
}

.data-table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-neutral-200);
}

.data-table-header h5 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-700);
    color: var(--color-neutral-900);
    margin: 0;
}

.data-table-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-600);
    border-radius: var(--radius-full);
}

.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: var(--color-neutral-100);
}

.table th {
    padding: var(--space-4) var(--space-6);
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-700);
    color: var(--color-neutral-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-neutral-200);
}

.table td {
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-sm);
    color: var(--color-neutral-700);
    border-bottom: 1px solid var(--color-neutral-200);
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--color-primary-alpha);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.empty-state {
    padding: var(--space-16) var(--space-6);
    text-align: center;
}

.table-empty-message {
    font-size: var(--font-size-base);
    color: var(--color-neutral-500);
    font-weight: var(--font-weight-500);
    margin: 0;
}

.table-actions {
    width: 100%;
    display: flex;
    gap: var(--space-4);
    justify-content: flex-end;
}

.table-action-btn {
    color: var(--color-neutral-600);
    background: transparent;
    border: 0px;
    transition: all var(--transition-base);
    cursor: pointer;
}

/* =========================================
   9. RESPONSIVE
   ========================================= */

@media (max-width: 768px) {
    main {
        padding: var(--space-4);
    }

    .navbar-container {
        padding: 0 var(--space-4);
        position: relative;
        display: flex;
        justify-content: space-between;
        grid-template-columns: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-menu-wrapper {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        border-bottom: 1px solid var(--color-neutral-200);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: var(--space-4);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all var(--transition-base);
        max-height: 0;
        overflow: hidden;
    }

    .nav-menu-wrapper.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        max-height: 500px;
    }

    .nav-menu {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: var(--space-1);
        grid-column: auto;
        justify-content: flex-start;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        width: 100%;
        justify-content: flex-start;
        padding: var(--space-4);
    }

    .nav-user-menu {
        width: 100%;
        margin-top: var(--space-2);
        padding-top: var(--space-4);
        border-top: 1px solid var(--color-neutral-200);
        grid-column: auto;
        justify-content: flex-start;
    }

    .dropdown-wrapper {
        width: 100%;
    }

    .dropdown-trigger {
        width: 100%;
        justify-content: flex-start;
        padding: var(--space-4);
    }

    .dropdown-menu-custom {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border: none;
        margin-top: var(--space-2);
        padding: 0;
    }

    .card-deck {
        display: flex;
        flex-direction: row;
        gap: var(--space-4);
        margin-bottom: var(--space-6);
        overflow-x: auto;
        padding-bottom: var(--space-2);
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }

    .card-deck > .card {
        flex: 0 0 100%;
        scroll-snap-align: start;
    }

    .card-deck::-webkit-scrollbar {
        display: none;
    }

    .card-body {
        padding: var(--space-4);
    }

    .table th,
    .table td {
        padding: var(--space-3) var(--space-4);
    }

    .data-table-header {
        padding: var(--space-4);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .section-actions {
        width: 100%;
        flex-direction: column;
    }

    .section-actions .btn {
        width: 100%;
    }
}