@import url("https://fonts.googleapis.com/css2?family=Sora:wght@600;700;800&family=Manrope:wght@400;500;600;700;800&family=Azeret+Mono:wght@500;600;700&display=swap");

:root {
    --page-top: #f7fbff;
    --page-bottom: #eaf3ff;
    --surface-1: rgba(255, 255, 255, 0.92);
    --surface-2: #edf6ff;
    --surface-solid: #ffffff;
    --surface-muted: #dfeeff;
    --surface-button: rgba(255, 255, 255, 0.86);
    --text-color: #0c2342;
    --text-muted: #536f95;
    --accent-color: #1877f2;
    --accent-strong: #0f5fc7;
    --accent-soft: rgba(24, 119, 242, 0.12);
    --border-color: rgba(24, 119, 242, 0.16);
    --border-strong: rgba(15, 95, 199, 0.26);
    --focus-ring: rgba(24, 119, 242, 0.24);
    --shadow-soft: 0 8px 18px rgba(24, 96, 180, 0.14);
    --shadow-button: 0 10px 20px rgba(24, 119, 242, 0.24);
    --grid-line: rgba(24, 119, 242, 0.065);
    --warning-bg: rgba(244, 170, 58, 0.16);
    --warning-border: rgba(180, 117, 20, 0.28);
    --warning-text: #3b2b12;
    --table-head: #175da8;
    --font-ui: "Manrope", system-ui, sans-serif;
    --font-display: "Sora", "Manrope", system-ui, sans-serif;
    --font-mono: "Azeret Mono", ui-monospace, monospace;
    --radius-card: 8px;
    --radius-control: 8px;
    --header-h: 54px;
    --max: 1180px;
}

html[data-theme="dark"] {
    --page-top: #090b0f;
    --page-bottom: #020305;
    --surface-1: rgba(9, 11, 15, 0.9);
    --surface-2: #11151c;
    --surface-solid: #0d1117;
    --surface-muted: #171c24;
    --surface-button: rgba(16, 20, 27, 0.9);
    --text-color: #f7f8fb;
    --text-muted: #a5adba;
    --accent-color: #f8fafc;
    --accent-strong: #ffffff;
    --accent-soft: rgba(255, 255, 255, 0.1);
    --border-color: rgba(226, 232, 240, 0.14);
    --border-strong: rgba(226, 232, 240, 0.26);
    --focus-ring: rgba(255, 255, 255, 0.28);
    --shadow-soft: 0 8px 16px rgba(0, 0, 0, 0.42);
    --shadow-button: 0 8px 18px rgba(0, 0, 0, 0.42);
    --grid-line: rgba(226, 232, 240, 0.055);
    --warning-bg: rgba(119, 82, 13, 0.28);
    --warning-border: rgba(255, 190, 92, 0.28);
    --warning-text: #ffe2aa;
    --table-head: #151a22;
}

html {
    scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
    min-width: 320px;
    padding: 0 !important;
    font-family: var(--font-ui) !important;
    letter-spacing: 0 !important;
    background:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
        linear-gradient(180deg, var(--page-top) 0%, var(--page-bottom) 52%, var(--page-bottom) 100%) !important;
    background-size: 44px 44px, 44px 44px, auto !important;
}

body::before {
    display: none;
}

h1,
h2,
h3,
.brand-title,
.page-title {
    font-family: var(--font-display) !important;
    letter-spacing: 0 !important;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    display: grid;
    grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
    align-items: center;
    gap: 12px;
    min-height: var(--header-h);
    padding: 7px max(20px, calc((100vw - var(--max)) / 2));
    border-bottom: 1px solid var(--border-color);
    background: var(--surface-1);
    backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    width: fit-content;
    min-width: 0;
    color: var(--text-color);
    text-decoration: none;
}

.brand-logo {
    display: block;
    width: 33px;
    height: 33px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-card);
    background: var(--surface-2);
    object-fit: contain;
    padding: 3px;
}

.brand span {
    display: grid;
    min-width: 0;
    line-height: 1.12;
}

.brand strong {
    font-size: 0.95rem;
    font-weight: 900;
    white-space: nowrap;
}

.brand small {
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 800;
    white-space: nowrap;
}

.desktop-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.desktop-nav a,
.desktop-nav button,
.mobile-nav a,
.mobile-nav button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 7px 10px;
    border: 0;
    border-radius: var(--radius-control);
    background: transparent;
    color: var(--text-muted);
    font: inherit;
    font-size: 0.94rem;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}

.desktop-nav a:hover,
.desktop-nav button:hover,
.mobile-nav a:hover,
.mobile-nav button:hover {
    color: var(--text-color);
    background: var(--surface-2);
}

.header-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

.icon-button,
.button,
.quick-link,
.nav-link,
.generated-link,
.copy-btn,
.header-cta,
button {
    border-radius: var(--radius-control) !important;
    letter-spacing: 0 !important;
}

.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 36px;
    padding: 8px 14px;
    border: 1px solid var(--accent-strong);
    background: linear-gradient(180deg, var(--accent-color), var(--accent-strong));
    color: #ffffff;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 900;
    text-decoration: none;
    cursor: pointer;
    box-shadow: var(--shadow-button);
}

html[data-theme="dark"] .header-cta {
    border-color: #ffffff;
    background: linear-gradient(180deg, #ffffff, #d7dce4);
    color: #05070a;
}

.site-header .icon-button {
    position: relative;
    display: grid !important;
    place-items: center;
    width: 36px !important;
    min-width: 36px !important;
    height: 36px !important;
    min-height: 36px !important;
    padding: 0 !important;
    border: 0 !important;
    background: transparent !important;
    color: var(--text-color);
    font-size: 1.12rem;
}

.site-header .menu-toggle {
    display: none !important;
}

.mobile-nav {
    position: fixed;
    top: var(--header-h);
    left: 50%;
    z-index: 70;
    display: grid;
    gap: 4px;
    width: min(var(--max), calc(100% - 32px));
    max-height: 0;
    padding: 0 10px;
    overflow: hidden;
    border: 0 solid var(--border-color);
    border-radius: var(--radius-card);
    background: var(--surface-solid);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    filter: blur(2px);
    transform: translateX(-50%) translateY(-12px);
    pointer-events: none;
    transition: max-height 250ms ease, padding 250ms ease, border 250ms ease, transform 250ms ease, opacity 250ms ease, filter 250ms ease;
}

.mobile-nav.active {
    max-height: 420px;
    padding: 10px;
    border-width: 1px;
    opacity: 1;
    filter: blur(0);
    transform: translateX(-50%) translateY(8px);
    pointer-events: auto;
}

.mobile-nav a,
.mobile-nav button {
    width: 100%;
    justify-content: flex-start;
    padding: 11px 12px;
}

.nav-icon,
.button-icon {
    display: inline-grid;
    place-items: center;
    flex: 0 0 auto;
    font-size: 1.16em;
    line-height: 1;
}

.edit-icon-button {
    display: inline-grid !important;
    place-items: center;
    width: 38px !important;
    min-width: 38px !important;
    height: 38px !important;
    min-height: 38px !important;
    padding: 0 !important;
    border: 0 !important;
    border-radius: var(--radius-control) !important;
    background: transparent !important;
    color: var(--text-color) !important;
    box-shadow: none !important;
}

.edit-icon-button:hover {
    background: var(--surface-2) !important;
    color: var(--accent-strong) !important;
}

.database-notice summary {
    cursor: pointer;
    list-style-position: inside;
}

.database-notice p {
    margin: 10px 0 0;
}

.page-shell {
    width: min(var(--max), calc(100% - 32px)) !important;
    max-width: var(--max) !important;
    padding: 44px 0 28px;
}

.focus-card,
.panel,
.hero-card,
.section-card,
.credits-card,
.modal-card,
.reports-card,
details,
.info-box,
.status-box,
.table-container,
input,
select,
textarea {
    border-radius: var(--radius-card) !important;
}

.focus-card,
.panel,
.hero-card,
.section-card,
.credits-card,
.modal-card {
    box-shadow: var(--shadow-soft) !important;
}

.button-primary,
.generated-link {
    border-color: var(--accent-strong) !important;
    background: linear-gradient(180deg, var(--accent-color), var(--accent-strong)) !important;
    color: #ffffff !important;
    box-shadow: var(--shadow-button) !important;
}

html[data-theme="dark"] .button-primary,
html[data-theme="dark"] .generated-link {
    border-color: #ffffff !important;
    background: linear-gradient(180deg, #ffffff, #d7dce4) !important;
    color: #05070a !important;
}

.theme-control {
    min-height: auto !important;
    padding: 0 !important;
    border: 0 !important;
    background: transparent !important;
    backdrop-filter: none !important;
}

.theme-control .sr-only {
    position: absolute;
}

.theme-icon {
    display: grid !important;
    place-items: center;
}

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

@media (max-width: 980px) {
    :root {
        --header-h: 50px;
    }

    .site-header {
        grid-template-columns: minmax(0, 1fr) auto;
        min-height: var(--header-h);
        padding: 6px 14px;
    }

    .desktop-nav,
    .header-cta {
        display: none;
    }

    .site-header .menu-toggle {
        display: grid !important;
    }

    .page-shell {
        width: calc(100% - 28px) !important;
        padding-top: 30px;
    }
}

@media (max-width: 640px) {
    :root {
        --header-h: 68px;
    }

    body {
        background-size: 36px 36px, 36px 36px, auto !important;
    }

    .site-header {
        min-height: var(--header-h);
        padding: 10px 14px;
        background: rgba(255, 255, 255, 0.94);
    }

    html[data-theme="dark"] .site-header {
        background: rgba(6, 8, 12, 0.94);
    }

    .brand-logo {
        width: 36px;
        height: 36px;
        padding: 3px;
    }

    .brand strong {
        font-size: 1rem;
    }

    .brand small {
        font-size: 0.68rem;
    }

    .site-header .icon-button {
        width: 38px !important;
        min-width: 38px !important;
        height: 38px !important;
        min-height: 38px !important;
        font-size: 1.08rem;
    }

    .mobile-nav {
        top: var(--header-h);
        width: calc(100% - 28px);
    }

    .focus-wrap {
        width: 100% !important;
    }

    .page-shell {
        width: calc(100% - 24px) !important;
        padding-top: 16px !important;
        padding-bottom: 22px !important;
    }

    .form-grid,
    .controls,
    .modal-actions {
        grid-template-columns: 1fr !important;
    }

    .button,
    .quick-link,
    .generated-link,
    .copy-btn,
    .nav-link {
        width: 100%;
        min-height: 48px;
        justify-content: center;
    }

    .page-title,
    .brand-title {
        font-size: clamp(2rem, 9.5vw, 2.75rem) !important;
        line-height: 1.02 !important;
        text-wrap: balance;
    }

    .focus-card,
    .panel,
    .hero-card,
    .section-card,
    .credits-card {
        padding: 18px !important;
        box-shadow: 0 8px 18px rgba(15, 23, 42, 0.1) !important;
    }

    html[data-theme="dark"] .focus-card,
    html[data-theme="dark"] .panel,
    html[data-theme="dark"] .hero-card,
    html[data-theme="dark"] .section-card,
    html[data-theme="dark"] .credits-card {
        box-shadow: 0 8px 18px rgba(0, 0, 0, 0.34) !important;
    }

    .focus-header,
    .panel-header {
        margin-bottom: 16px !important;
        gap: 8px !important;
    }

    .brand-copy,
    .page-copy,
    .hero-card p,
    .section-card p,
    .faq-answer,
    .info-box,
    .status-box {
        font-size: 0.96rem !important;
        line-height: 1.55 !important;
    }

    .brand-copy,
    .page-copy {
        margin-bottom: 0 !important;
    }

    .eyebrow {
        padding: 6px 10px !important;
        font-size: 0.68rem !important;
    }

    .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 12px !important;
    }

    .field.full-width,
    .action-row {
        grid-column: 1 / -1;
    }

    .field {
        gap: 6px !important;
    }

    label {
        font-size: 0.82rem !important;
    }

    input,
    select,
    textarea {
        min-height: 48px !important;
        padding: 11px 14px !important;
        font-size: 0.98rem !important;
    }

    .action-row {
        margin-top: 4px !important;
    }

    .feedback-btn {
        right: 14px !important;
        bottom: 14px !important;
        width: 48px !important;
        min-width: 48px !important;
        max-width: 48px !important;
        height: 48px !important;
        min-height: 48px !important;
        max-height: 48px !important;
    }

    .panel .info-box {
        padding: 14px 16px !important;
    }

    .database-notice {
        max-height: none !important;
        overflow: visible !important;
    }

    .database-notice:not([open]) {
        padding: 13px 16px !important;
    }

    .database-notice[open] {
        max-height: 240px !important;
        overflow-y: auto !important;
    }

    .status-box {
        padding: 12px 14px !important;
    }

    .controls {
        gap: 10px !important;
    }

    .table-container {
        max-height: 58vh;
        overflow: auto;
        border-radius: var(--radius-card) !important;
    }

    #studentTable th,
    #studentTable td {
        padding: 10px 12px !important;
        font-size: 0.9rem !important;
    }

    .hero-card h2,
    .section-card h2,
    .faq-heading,
    .credits-card h3,
    .panel h2 {
        font-size: clamp(1.5rem, 7vw, 1.85rem) !important;
        line-height: 1.12 !important;
    }

    .hero-card .page-copy {
        margin-bottom: 12px !important;
    }

    .hero-card h2 {
        margin-top: 14px !important;
        margin-bottom: 8px !important;
    }

    .hero-card p + p {
        margin-top: 8px !important;
    }

    details {
        padding: 0 !important;
    }

    summary {
        padding: 15px 16px !important;
        font-size: 0.98rem !important;
    }

    .faq-answer {
        padding: 0 16px 16px !important;
    }
}

@media (max-width: 370px) {
    .form-grid {
        grid-template-columns: 1fr !important;
    }
}