/* Material Design 3 - Jalgratta Eksam */

:root {
    /* MD3 Color Tokens - Light Theme */
    --md-sys-color-primary: #0061a4;
    --md-sys-color-on-primary: #ffffff;
    --md-sys-color-primary-container: #d1e4ff;
    --md-sys-color-on-primary-container: #001d36;

    --md-sys-color-secondary: #535f70;
    --md-sys-color-on-secondary: #ffffff;
    --md-sys-color-secondary-container: #d7e3f7;
    --md-sys-color-on-secondary-container: #101c2b;

    --md-sys-color-tertiary: #6b5778;
    --md-sys-color-on-tertiary: #ffffff;
    --md-sys-color-tertiary-container: #f2daff;
    --md-sys-color-on-tertiary-container: #251431;

    --md-sys-color-error: #ba1a1a;
    --md-sys-color-on-error: #ffffff;
    --md-sys-color-error-container: #ffdad6;
    --md-sys-color-on-error-container: #410002;

    --md-sys-color-success: #006e1c;
    --md-sys-color-on-success: #ffffff;
    --md-sys-color-success-container: #9ef991;
    --md-sys-color-on-success-container: #002204;

    --md-sys-color-surface: #fcfcff;
    --md-sys-color-on-surface: #1a1c1e;
    --md-sys-color-surface-variant: #dfe2eb;
    --md-sys-color-on-surface-variant: #43474e;

    --md-sys-color-outline: #73777f;
    --md-sys-color-outline-variant: #c3c7cf;

    --md-sys-color-background: #f8f9ff;
    --md-sys-color-on-background: #1a1c1e;

    /* MD3 Elevation Shadows */
    --md-sys-elevation-0: none;
    --md-sys-elevation-1: 0px 1px 2px rgba(0, 0, 0, 0.3), 0px 1px 3px 1px rgba(0, 0, 0, 0.15);
    --md-sys-elevation-2: 0px 1px 2px rgba(0, 0, 0, 0.3), 0px 2px 6px 2px rgba(0, 0, 0, 0.15);
    --md-sys-elevation-3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px rgba(0, 0, 0, 0.3);
    --md-sys-elevation-4: 0px 6px 10px 4px rgba(0, 0, 0, 0.15), 0px 2px 3px rgba(0, 0, 0, 0.3);

    /* MD3 Shape Tokens */
    --md-sys-shape-corner-none: 0px;
    --md-sys-shape-corner-small: 8px;
    --md-sys-shape-corner-medium: 12px;
    --md-sys-shape-corner-large: 16px;
    --md-sys-shape-corner-extra-large: 28px;

    /* MD3 Typography Scale */
    --md-sys-typescale-display-large: 57px;
    --md-sys-typescale-headline-large: 32px;
    --md-sys-typescale-headline-medium: 28px;
    --md-sys-typescale-title-large: 22px;
    --md-sys-typescale-title-medium: 16px;
    --md-sys-typescale-body-large: 16px;
    --md-sys-typescale-body-medium: 14px;
    --md-sys-typescale-label-large: 14px;
}

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

body {
    font-family: 'Roboto', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: var(--md-sys-typescale-body-medium);
}

/* HEADER - MD3 Top App Bar */
.header {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    padding: 24px 0;
    box-shadow: var(--md-sys-elevation-2);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo h1 {
    font-size: var(--md-sys-typescale-headline-large);
    font-weight: 500;
    color: var(--md-sys-color-on-primary);
    margin: 0;
}

.tagline {
    font-size: var(--md-sys-typescale-body-medium);
    color: var(--md-sys-color-on-primary);
    opacity: 0.9;
    margin-top: 4px;
}

/* NAVIGATION - MD3 Navigation Bar */
.navbar {
    background-color: var(--md-sys-color-surface);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--md-sys-elevation-2);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
    padding: 12px 24px;
    border-radius: var(--md-sys-shape-corner-large);
    transition: all 0.2s cubic-bezier(0.2, 0, 0, 1);
    font-weight: 500;
    font-size: var(--md-sys-typescale-label-large);
    white-space: nowrap;
    position: relative;
}

.nav-link:hover {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}

.nav-link:active {
    transform: scale(0.98);
}

/* MAIN CONTENT */
.main-content {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 24px auto;
    padding: 0 16px;
}

/* MD3 Card Container */
.container {
    background: var(--md-sys-color-surface);
    padding: 32px;
    border-radius: var(--md-sys-shape-corner-extra-large);
    box-shadow: var(--md-sys-elevation-1);
    margin-bottom: 24px;
    border: 1px solid var(--md-sys-color-outline-variant);
}

/* MD3 Typography */
h1 {
    color: var(--md-sys-color-on-surface);
    margin-bottom: 24px;
    font-size: var(--md-sys-typescale-headline-large);
    font-weight: 500;
    letter-spacing: 0;
}

.container h1 {
    color: var(--md-sys-color-on-surface);
}

h2 {
    color: var(--md-sys-color-on-surface);
    margin-top: 32px;
    margin-bottom: 16px;
    font-size: var(--md-sys-typescale-title-large);
    font-weight: 500;
}

p {
    margin-bottom: 16px;
    color: var(--md-sys-color-on-surface-variant);
    font-size: var(--md-sys-typescale-body-large);
    line-height: 1.6;
}

/* MD3 TABLES */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    background: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-medium);
    overflow: hidden;
    box-shadow: var(--md-sys-elevation-1);
    border: 1px solid var(--md-sys-color-outline-variant);
}

th {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    padding: 16px;
    text-align: left;
    font-weight: 600;
    font-size: var(--md-sys-typescale-title-medium);
    letter-spacing: 0.1px;
}

td {
    padding: 16px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    color: var(--md-sys-color-on-surface);
    font-size: var(--md-sys-typescale-body-medium);
}

tr:hover {
    background-color: var(--md-sys-color-surface-variant);
    transition: background-color 0.2s ease;
}

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

/* MD3 FORMS */
form {
    margin: 24px 0;
}

dl {
    display: grid;
    gap: 24px;
}

dt {
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    font-size: var(--md-sys-typescale-body-large);
    margin-bottom: 8px;
}

dd {
    margin-left: 0;
}

/* MD3 Text Fields */
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
select {
    width: 100%;
    padding: 16px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    font-size: var(--md-sys-typescale-body-large);
    max-width: 400px;
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    transition: all 0.2s ease;
    font-family: inherit;
}

input[type="text"]:hover,
input[type="number"]:hover,
input[type="email"]:hover,
input[type="password"]:hover,
select:hover {
    border-color: var(--md-sys-color-on-surface);
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
select:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    border-width: 2px;
    padding: 15px;
    box-shadow: 0 0 0 3px rgba(0, 97, 164, 0.12);
}

/* MD3 Filled Button */
input[type="submit"],
.btn {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    padding: 12px 24px;
    border: none;
    border-radius: var(--md-sys-shape-corner-large);
    cursor: pointer;
    font-size: var(--md-sys-typescale-label-large);
    font-weight: 600;
    display: inline-block;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.2, 0, 0, 1);
    box-shadow: var(--md-sys-elevation-0);
    letter-spacing: 0.1px;
    min-height: 40px;
}

input[type="submit"]:hover,
.btn:hover {
    background-color: var(--md-sys-color-primary);
    box-shadow: var(--md-sys-elevation-1);
    color: var(--md-sys-color-on-primary);
    filter: brightness(1.1);
}

input[type="submit"]:active,
.btn:active {
    transform: scale(0.98);
    box-shadow: var(--md-sys-elevation-0);
    color: var(--md-sys-color-on-primary);
}

input[type="submit"]:focus,
.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 97, 164, 0.12);
}

/* MD3 Danger Button */
.btn-danger {
    background-color: var(--md-sys-color-error);
    color: var(--md-sys-color-on-error);
}

.btn-danger:hover {
    background-color: var(--md-sys-color-error);
    color: var(--md-sys-color-on-error);
    filter: brightness(1.1);
    box-shadow: var(--md-sys-elevation-1);
}

/* MD3 Info Button */
.btn-info {
    background-color: var(--md-sys-color-secondary);
    color: var(--md-sys-color-on-secondary);
}

.btn-info:hover {
    background-color: var(--md-sys-color-secondary);
    color: var(--md-sys-color-on-secondary);
    filter: brightness(1.1);
    box-shadow: var(--md-sys-elevation-1);
}

small {
    color: var(--md-sys-color-on-surface-variant);
    display: block;
    margin-top: 8px;
    font-size: 12px;
    line-height: 1.4;
}

/* MD3 ALERTS/SNACKBARS */
.viga {
    color: var(--md-sys-color-on-error-container);
    background-color: var(--md-sys-color-error-container);
    padding: 16px 20px;
    border-radius: var(--md-sys-shape-corner-medium);
    margin: 16px 0;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--md-sys-elevation-1);
}

.edukas {
    color: var(--md-sys-color-on-success-container);
    background-color: var(--md-sys-color-success-container);
    padding: 16px 20px;
    border-radius: var(--md-sys-shape-corner-medium);
    margin: 16px 0;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--md-sys-elevation-1);
}

.info {
    color: var(--md-sys-color-on-secondary-container);
    background-color: var(--md-sys-color-secondary-container);
    padding: 16px 20px;
    border-radius: var(--md-sys-shape-corner-medium);
    margin: 16px 0;
    display: flex;
    align-items: start;
    gap: 12px;
    box-shadow: var(--md-sys-elevation-1);
}

/* MD3 LINKS */
a {
    color: var(--md-sys-color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-weight: 500;
}

a:hover {
    color: var(--md-sys-color-primary);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
}

a:focus {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* MD3 BADGES/CHIPS */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    border-radius: var(--md-sys-shape-corner-small);
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: 0.1px;
}

.badge-success {
    background-color: var(--md-sys-color-success-container);
    color: var(--md-sys-color-on-success-container);
}

.badge-danger {
    background-color: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
}

.badge-warning {
    background-color: #fef7e0;
    color: #6b5e00;
}

.badge-info {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}

/* MD3 FOOTER */
.footer {
    background-color: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface-variant);
    text-align: center;
    padding: 32px 20px;
    margin-top: auto;
    border-top: 1px solid var(--md-sys-color-outline-variant);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-info {
    font-size: var(--md-sys-typescale-body-medium);
    color: var(--md-sys-color-on-surface-variant);
    margin-top: 8px;
    opacity: 0.8;
}

/* MD3 RESPONSIVE */
@media (max-width: 768px) {
    .logo h1 {
        font-size: var(--md-sys-typescale-headline-medium);
    }

    .nav-menu {
        flex-direction: column;
        gap: 4px;
        padding: 8px 0;
    }

    .nav-link {
        padding: 12px 16px;
        justify-content: flex-start;
    }

    .container {
        padding: 20px;
        border-radius: var(--md-sys-shape-corner-large);
    }

    input[type="text"],
    input[type="number"],
    input[type="email"],
    input[type="password"],
    select {
        max-width: 100%;
    }

    table {
        font-size: 13px;
    }

    th,
    td {
        padding: 12px;
    }

    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 16px;
        margin-bottom: 16px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }
}

/* MD3 Utility Classes */
.md-elevated {
    box-shadow: var(--md-sys-elevation-2);
}

.md-filled {
    background-color: var(--md-sys-color-surface-variant);
}

.md-outlined {
    border: 1px solid var(--md-sys-color-outline);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
}