@font-face {
    font-family: "TextGyreAdventor";
    src: url("https://www.janmotal.cz/design/fonts/texgyreadventor-regular.otf") format("opentype");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "TextGyreAdventor";
    src: url("https://www.janmotal.cz/design/fonts/texgyreadventor-italic.otf") format("opentype");
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: "TextGyreAdventor";
    src: url("https://www.janmotal.cz/design/fonts/texgyreadventor-bold.otf") format("opentype");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "TextGyreAdventor";
    src: url("https://www.janmotal.cz/design/fonts/texgyreadventor-bolditalic.otf") format("opentype");
    font-weight: 700;
    font-style: italic;
    font-display: swap;
}

:root {
    --background-color: #ffffff;
    --surface-color: #fbfaf6;
    --block-color: #f4f2ea;
    --text-color: #181818;
    --muted-color: #5f5a52;
    --line-color: #d8d2c7;
    --link-color: #1f5fbf;
    --link-hover-color: #174996;
    --accent-soft: #dfe8f7;
    --alert-color: #b42318;
    --success-color: #17663a;
    --input-color: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --radius-small: 8px;
    --space-1: 0.4rem;
    --space-2: 0.7rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --content-width: 1180px;

    --font-body: "Vollkorn", serif;
    --font-heading: "TextGyreAdventor", Arial, sans-serif;
    --font-mono: "Fira Code", monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: var(--background-color);
    color: var(--text-color);
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img,
svg,
canvas {
    max-width: 100%;
    display: block;
}

a {
    color: var(--link-color);
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 0.15em;
    transition: color 0.18s ease, opacity 0.18s ease;
}

a:hover,
a:focus-visible {
    color: var(--link-hover-color);
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

.red {
    color: var(--alert-color) !important;
}

.muted {
    color: var(--muted-color);
}

.code-font {
    font-family: var(--font-mono);
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
}

.text-font {
    font-family: var(--font-heading);
    font-weight: 400;
    font-style: normal;
}

.text-font-bold {
    font-family: var(--font-heading);
    font-weight: 700;
    font-style: normal;
}

.centered {
    text-align: center;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    align-items: center;
}

main {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 1rem 1rem 3rem 1rem;
}

main h1,
main h2,
main h3,
main h4,
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin: 0 0 0.8rem 0;
    line-height: 1.2;
}

main h1 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
}

main h2 {
    font-size: clamp(1.35rem, 2.2vw, 1.8rem);
}

main h3 {
    font-size: clamp(1.1rem, 1.8vw, 1.35rem);
}

/* NAV */

.main-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: grid;
    grid-template-columns: auto minmax(240px, 1fr) auto;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line-color);
}

.nav-brand a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.15rem;
    font-family: var(--font-heading);
    font-weight: 700;
}

.nav-search-container {
    position: relative;
    width: 100%;
    max-width: 520px;
    justify-self: center;
}

#studentSearch {
    width: 100%;
    min-height: 44px;
    padding: 0.7rem 0.95rem;
    border: 1px solid var(--line-color);
    border-radius: 999px;
    background: var(--surface-color);
    color: var(--text-color);
    outline: none;
}

#studentSearch:focus {
    border-color: var(--link-color);
    box-shadow: 0 0 0 3px rgba(31, 95, 191, 0.12);
}

.search-results {
    position: absolute;
    top: calc(100% + 0.4rem);
    left: 0;
    right: 0;
    display: none;
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--line-color);
    border-radius: var(--radius);
    box-shadow: 0 18px 40px var(--shadow-color);
    max-height: min(55vh, 360px);
    overflow-y: auto;
    z-index: 1001;
}

.search-result-item,
.search-results div {
    padding: 0.8rem 0.95rem;
    border-bottom: 1px solid #eee7dc;
    cursor: pointer;
    background: #fff;
}

.search-results div:last-child {
    border-bottom: 0;
}

.search-result-item:hover,
.search-results div:hover {
    background: #f6f8fc;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.header-meta {
    width: 100%;
    padding: 0.65rem 1rem;
    border-bottom: 1px solid #eee7dc;
    color: var(--muted-color);
    background: var(--surface-color);
    font-size: 0.92rem;
}

.student-directory-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.student-directory {
    border-bottom: 1px solid var(--line-color);
    background: var(--surface-color);
}

.student-directory-inner {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0.8rem 1rem 1rem 1rem;
}

.student-directory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 0.6rem;
}

.student-directory-link {
    display: block;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--line-color);
    border-radius: var(--radius-small);
    background: #fff;
    color: var(--text-color);
    text-decoration: none;
}

.student-directory-link:hover,
.student-directory-link:focus-visible {
    border-color: var(--link-color);
    color: var(--text-color);
    background: #f7faff;
}

.student-directory-link small {
    display: block;
    margin-top: 0.2rem;
    color: var(--muted-color);
    font-size: 0.84rem;
}

/* BUTTONS */

.button-link,
button.button-link,
input[type="submit"].button-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 42px;
    padding: 0.7rem 1rem;
    border: 1px solid var(--line-color);
    border-radius: 999px;
    background: var(--surface-color);
    color: var(--text-color);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1;
    transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.08s ease;
}

.button-link:hover,
.button-link:focus-visible {
    background: #eef3fb;
    border-color: #b8c8e4;
    color: var(--text-color);
    text-decoration: none;
}

.button-link:active {
    transform: translateY(1px);
}

.button-link.primary {
    background: var(--text-color);
    border-color: var(--text-color);
    color: #fff;
}

.button-link.primary:hover,
.button-link.primary:focus-visible {
    background: #2a2a2a;
    color: #fff;
}

.button-link.subtle {
    background: transparent;
}

.button-link.red {
    border-color: #ecc9c5;
    color: var(--alert-color);
    background: #fff7f6;
}

/* CARDS */

.standardCard,
.teacher-applet,
#studentCard > section,
#addStudentCard {
    width: 100%;
    margin: 1.2rem 0;
    padding: 1.25rem;
    border: 1px solid var(--line-color);
    border-radius: 16px;
    background: var(--block-color);
    box-shadow: 0 10px 30px var(--shadow-color);
}

#studentCard {
    display: grid;
    gap: 1rem;
}

.section-toolbar {
    margin-bottom: 0.9rem;
}

/* INFO GRID */

.info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.info-item {
    padding: 0.9rem;
    border: 1px solid #e7e0d2;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.6);
}

.info-label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.info-value {
    word-break: break-word;
}

.student-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    font-size: 0.82rem;
    font-family: var(--font-mono);
    background: #edf7f0;
    color: var(--success-color);
    border: 1px solid #cde7d6;
}

.status-pill.inactive {
    background: #fff1ef;
    color: var(--alert-color);
    border-color: #f0c9c3;
}

/* TABLES */

.table-responsive {
    width: 100%;
    overflow-x: auto;
    margin: 1rem 0 0 0;
    -webkit-overflow-scrolling: touch;
}

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

.schedulerTable,
.messageTable {
    min-width: 640px;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
}

.schedulerTable th,
.schedulerTable td,
.messageTable th,
.messageTable td {
    padding: 0.8rem 0.75rem;
    border-bottom: 1px solid #ece5d9;
    text-align: left;
    vertical-align: top;
}

.schedulerTable th,
.messageTable th {
    background: #f6f2e8;
    font-weight: 600;
    font-family: var(--font-heading);
}

.schedulerTable tr:hover td,
.messageTable tr:hover td {
    background: #fcfbf8;
}

.table-row-link {
    cursor: pointer;
}

.consultation-entry {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
    white-space: normal;
}

.consultation-entry a {
    font-weight: 600;
}

/* FORM */

.formEdit {
    width: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
}

fieldset {
    border: 0;
    padding: 0;
    margin: 0 0 1rem 0;
}

.formRow {
    margin-bottom: 1rem;
}

.formRow label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 600;
    font-family: var(--font-heading);
}

.formEdit input,
.formEdit select,
.formEdit textarea {
    width: 100%;
    padding: 0.8rem 0.9rem;
    border: 1px solid var(--line-color);
    border-radius: 10px;
    background: #fff;
    color: var(--text-color);
}

.formEdit textarea {
    min-height: 120px;
    resize: vertical;
}

.formEdit input:focus,
.formEdit select:focus,
.formEdit textarea:focus {
    outline: none;
    border-color: var(--link-color);
    box-shadow: 0 0 0 3px rgba(31, 95, 191, 0.12);
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.2rem;
}

/* HOMEPAGE TOP NAV */

.subject-tabs.actions {
    position: sticky;
    top: 72px;
    z-index: 900;
    padding: 0.8rem 0 0.4rem 0;
    background: linear-gradient(to bottom, #fff 0%, rgba(255,255,255,0.96) 72%, rgba(255,255,255,0) 100%);
    margin-bottom: 0.8rem;
}

.subject-tabs .button-link {
    background: #fff;
}

.student-directory-link-alert {
    background: #fff1ef;
    border-color: #f0c9c3;
}

.student-directory-link-alert:hover,
.student-directory-link-alert:focus-visible {
    background: #ffe8e4;
    border-color: #e3a6a0;
}

/* FOOTER */

#footer-text {
    max-width: var(--content-width);
    margin: 2rem auto 1rem auto;
    padding: 0 1rem 2rem 1rem;
    color: var(--muted-color);
    font-size: 0.9rem;
}

/* UTIL */

.alertBox {
    padding: 0.9rem 1rem;
    border: 1px solid #f0c9c3;
    border-radius: 10px;
    background: #fff6f5;
    color: var(--alert-color);
}

.copy-inline {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.icon-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    min-height: 2rem;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--line-color);
    text-decoration: none;
    color: var(--text-color);
}

.icon-action:hover {
    text-decoration: none;
    background: #f6f8fc;
}

/* RESPONSIVE */

@media (max-width: 960px) {
    .info-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .main-nav {
        grid-template-columns: 1fr;
        align-items: stretch;
        gap: 0.75rem;
    }

    .nav-search-container {
        max-width: 100%;
        justify-self: stretch;
    }

    .nav-actions {
        justify-content: flex-start;
    }

    .header-meta {
        font-size: 0.86rem;
        text-align: left;
    }

    main {
        padding: 0.8rem 0.8rem 2.5rem 0.8rem;
    }

    .standardCard,
    .teacher-applet,
    #studentCard > section,
    #addStudentCard {
        padding: 1rem;
        border-radius: 14px;
        box-shadow: 0 8px 22px var(--shadow-color);
    }

    .student-title-row {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .subject-tabs.actions {
        top: 122px;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 0.6rem;
    }

    .subject-tabs.actions .button-link {
        flex: 0 0 auto;
    }

    .schedulerTable,
    .messageTable {
        min-width: 560px;
    }
}

@media (max-width: 480px) {
    .button-link,
    button.button-link {
        width: 100%;
    }

    .form-actions .button-link {
        width: 100%;
    }

    .schedulerTable,
    .messageTable {
        min-width: 520px;
    }
}

.subject-tab.is-active {
    background: var(--text-color);
    color: #fff;
    border-color: var(--text-color);
}

/* DIARIES SIDEBAR */

.main-container {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 1.25rem;
    max-width: 1440px;
    margin: 0 auto;
    padding: 1rem;
    align-items: start;
}

.diary-sidebar {
    position: sticky;
    top: 1rem;
    align-self: start;
}

.diary-sidebar-card {
    border: 1px solid var(--line-color);
    border-radius: 16px;
    background: var(--block-color);
    box-shadow: 0 10px 30px var(--shadow-color);
    overflow: hidden;
}

.diary-sidebar-head {
    padding: 1rem 1rem 0.75rem 1rem;
    border-bottom: 1px solid #e7e0d2;
    background: #f8f5ee;
}

.diary-sidebar-head h2,
.diary-sidebar-head h3,
.diary-sidebar-head p {
    margin: 0;
}

.diary-sidebar-head p {
    margin-top: 0.35rem;
}

.diary-sidebar-section {
    padding: 1rem;
    border-bottom: 1px solid #e7e0d2;
}

.diary-sidebar-section label {
    display: block;
    margin-bottom: 0.45rem;
}

.diary-sidebar-section select {
    width: 100%;
    padding: 0.8rem 0.9rem;
    border: 1px solid var(--line-color);
    border-radius: 10px;
    background: #fff;
    color: var(--text-color);
}

.diary-sidebar-body {
    padding: 1rem;
    max-height: calc(100vh - 280px);
    overflow-y: auto;
}

.diary-sidebar-body h3 {
    margin-bottom: 0.75rem;
}

.diary-sidebar-foot {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding: 1rem;
    border-top: 1px solid #e7e0d2;
    background: rgba(255,255,255,0.45);
}

.timeline-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.timeline-menu > li {
    margin-bottom: 0.9rem;
}

.timeline-menu ul {
    list-style: none;
    margin: 0;
    padding-left: 0.75rem;
}

.timeline-menu li li {
    margin: 0.35rem 0;
}

.timeline-menu a {
    display: inline-block;
    padding: 0.25rem 0;
    text-decoration: none;
}

.timeline-menu a:hover,
.timeline-menu a:focus-visible {
    text-decoration: underline;
}

.tl-year {
    display: block;
    padding: 0.35rem 0;
    font-size: 0.95rem;
}

@media (max-width: 980px) {
    .main-container {
        grid-template-columns: 1fr;
    }

    .diary-sidebar {
        position: static;
    }

    .diary-sidebar-body {
        max-height: none;
    }
}