#prev_year,
#prev_month {
    margin-top: -12px !important;
}
/* Restored styles for dashboard select menus and forms (Zápisky, Rok, Měsíc) */
form select, select {
    font-size: 1em;
    padding: 5px 10px;
    border-radius: 7px;
    border: 1.2px solid var(--accent);
    background: #f6f7fb;
    color: var(--text-main);
    margin-right: 8px;
    margin-bottom: 0;
    box-shadow: 0 1px 6px rgba(163,191,250,0.08);
    transition: border 0.18s, box-shadow 0.18s;
}
form select:focus, select:focus {
    border: 1.5px solid var(--accent-dark);
    outline: none;
    box-shadow: 0 2px 12px rgba(163,191,250,0.13);
}
form label {
    font-weight: 500;
    color: var(--accent-dark);
    margin-right: 6px;
    font-size: calc(var(--default-clamp) * 2.5);
}
form {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    margin-bottom: 12px;
}

#notes_subject {
    margin-top: -2px !important;
}
#homework-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 7px;
}
#homework-list input[type="checkbox"] 
form select {
    margin-top: 12px;
}
#homework-list label {
    cursor: pointer;
    user-select: none;
    margin: 0;
}
:root {
    --primary-bg: linear-gradient(120deg, #f6f7fb 60%, #e9f0fc 100%);
    --card-bg: #fff;
    --accent: #a3bffa;
    --accent-dark: #6c7fd1;
    --text-main: #22223b;
    --text-muted: #6c757d;
    --border: #e0e4ea;
    --shadow: 0 4px 32px rgba(163,191,250,0.13);
    --pastel-green: #b8e0d2;
    --pastel-pink: #f7d6e0;
    --pastel-yellow: #fff6b7;
    --card-radius: 18px;

    --default-clamp: clamp(0.5vw, 1vh, 1vh);
}

body {
    background: var(--primary-bg);
    color: var(--text-main);
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    max-height: 100vh;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* LOGIN */

/* Make login box bigger */
.login-container{
    width: calc(var(--default-clamp) * 70);
    margin: 64px auto 40px auto;
    background: var(--card-bg);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow);
    padding: 56px 40px 32px 40px;
    border: 2px solid var(--accent-dark);
}

label{

    margin-bottom: calc(var(--default-clamp) * 1);
}

.header{
    text-align: center;
    margin-bottom: calc(var(--default-clamp) * 2);
    color: var(--accent-dark);
    font-size: calc(var(--default-clamp) * 2);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
}

/* Make login inputs and button bigger */
.login-form input[type=text],
.login-form input[type=password],
.login-form button {
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 24px;
    color: var(--accent-dark);
    font-size: 2rem;
}

.login-form input[type=text],
.login-form input[type=password],
.login-form button {
    width: 100%;
    box-sizing: border-box;
}

/* Make login inputs even bigger */
.login-form input[type=text],
.login-form input[type=password] {
    border: 2px solid var(--accent);
    border-radius: 12px;
    background: #f6f7fb;
    font-size: calc(var(--default-clamp) * 2);
    color: var(--text-main);
    box-shadow: 0 2px 12px rgba(163,191,250,0.13);
    transition: border 0.2s, box-shadow 0.2s;
    padding: calc(var(--default-clamp) * 1) calc(var(--default-clamp) * 1);
}

.login-form input[type=text]:focus, 
.login-form input[type=password]:focus {
    border: calc(var(--default-clamp) * 0.2) solid var(--accent-dark);
    outline: none;
    box-shadow: 0 2px 12px rgba(163,191,250,0.18);
}

/* Make login button bigger */
.login-form button {
    padding: calc(var(--default-clamp) * 1) calc(var(--default-clamp) * 1);
    margin-bottom: calc(var(--default-clamp) * (-0.75));
    background: linear-gradient(90deg, var(--accent), var(--pastel-green));
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: calc(var(--default-clamp) * 2.5);
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(163,191,250,0.13);
    transition: background 0.18s, box-shadow 0.18s;
    margin-top: 12px;
}

.login-form button:hover {
    background: linear-gradient(90deg, var(--accent-dark), var(--pastel-pink));
    box-shadow: 0 4px 16px rgba(163,191,250,0.18);
}
.login-error {
    color: #c00;
    margin-bottom: 10px;
    font-weight: 600;
    text-align: center;
}

/* LOGOUT BUTTON */

.logout-btn {
    color: #2a7ae2;
    font-weight: 500;
    text-decoration: none;
    padding: 7px 18px;
    border-radius: 4px;
    border: 1px solid #2a7ae2;
    background: #f7faff;
    transition: background 0.18s, color 0.18s;
}
.logout-btn:hover {
    background: #e9f0fc;
    color: #174ea6;
}

@media (max-width: 700px) {
    .topic-form {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        text-align: left;
        width: 100%;
    }
    .topic-form label,
    .topic-form .topic-input,
    .topic-form select {
        width: 100%;
        text-align: left;
    }
    .topic-form .topic-input,
    .topic-form select {
        margin-top: -35px;
        margin-bottom: 8px;
    }
    html, body {
        overflow-x: hidden;
    }
    .container {
        width: 75vw !important;
        max-width: 75vw !important;
        margin-left: auto;
        margin-right: auto;
        padding: 12px 2vw 8px 2vw;
    }
}

/* Boosted next lesson topic input form */
.topic-form {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
    margin-bottom: 0;
}
.topic-label {
    margin: 0;
    font-weight: 400;
    color: var(--text-main);
    font-size: 1em;
}
.topic-input {
    flex: 1;
    min-width: 60px;
    max-width: 120px;
    padding: 4px 7px;
    border: 1.5px solid var(--accent);
    border-radius: 8px;
    font-size: 0.95em;
    background: #f6f7fb;
    color: var(--text-main);
    box-shadow: 0 1px 6px rgba(163,191,250,0.10);
    transition: border 0.2s, box-shadow 0.2s;
}
.topic-input:focus {
    border: 2px solid var(--accent-dark);
    outline: none;
    box-shadow: 0 2px 12px rgba(163,191,250,0.18);
}
.topic-btn {
    background: linear-gradient(90deg, var(--accent), var(--pastel-green));
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 5px 13px;
    font-size: 0.97em;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(163,191,250,0.13);
    transition: background 0.18s, box-shadow 0.18s;
}
.topic-btn:hover {
    background: linear-gradient(90deg, var(--accent-dark), var(--pastel-pink));
    box-shadow: 0 4px 16px rgba(163,191,250,0.18);
}
/* Custom layout for 4-row dashboard */
.custom-layout {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.custom-layout .row {
    display: flex;
    width: 100%;
    gap: 28px;
    margin-bottom: 0;
}
.custom-layout .row-1 {
    flex-direction: row;
}
.custom-layout .row-1 .col {
    flex: 1 1 0;
    min-width: 0;
}
.custom-layout .row-2,
.custom-layout .row-3,
.custom-layout .row-4 {
    flex-direction: row;
}
.custom-layout .row-2 section,
.custom-layout .row-3 section,
.custom-layout .row-4 section {
    width: 100%;
}

@media (max-width: 900px) {
    .custom-layout .row,
    .custom-layout .row-1 {
        flex-direction: column;
        gap: 18px;
    }
    .custom-layout .row-1 .col {
        width: 100%;
    }
}


/* styles.css - Modern, clean, pastel aesthetic */



.container {
    max-width: 75vw;
    margin: 48px auto 32px auto;
    background: var(--card-bg);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow);
    padding: 40px 32px 24px 32px;
    border: 1.5px solid var(--border);
}

header {
    text-align: center;
    margin-bottom: 36px;
}

header h1 {
    font-size: 2.7rem;
    margin: 0 0 10px 0;
    font-weight: 800;
    color: var(--accent-dark);
    letter-spacing: 0.02em;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin-bottom: 0;
    font-weight: 500;
}

main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px 32px;
}

section {
    margin-bottom: 0;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 18px 16px;
    margin-top: 8px;
    transition: box-shadow 0.2s, max-height 0.4s cubic-bezier(0.4,0,0.2,1), overflow 0.2s;
}

.card:hover {
    box-shadow: 0 4px 24px rgba(163,191,250,0.16);
}

/* Expandable card for previous lessons */
/* .expandable-card styles removed: always show all content */

h2 {
    font-size: 1.2rem;
    color: var(--accent-dark);
    margin-bottom: 0.5em;
    font-weight: 600;
}

ul, ol {
    margin: 0 0 0 18px;
    padding: 0;
    color: var(--text-main);
    font-size: 1rem;
}

.videocall-btn {
    display: inline-block;
    background: linear-gradient(90deg, var(--accent), var(--pastel-green));
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    padding: 10px 28px;
    border-radius: 8px;
    margin-top: 8px;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(163,191,250,0.10);
}

.videocall-btn:hover {
    background: linear-gradient(90deg, var(--accent-dark), var(--pastel-pink));
    box-shadow: 0 4px 16px rgba(163,191,250,0.18);
}

.videocall-note {
    color: var(--text-muted);
    font-size: 0.95em;
    margin-top: 6px;
}

footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95em;
    margin-top: 32px;
    padding-bottom: 8px;
}

/* Admin student list styles */
.student-list { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; margin-top: 40px; }
.student-btn {
    padding: 10px 38px;
    font-size: 1.2em;
    font-weight: 700;
    border-radius: 12px;
    border: 2px solid var(--accent-dark);
    background: linear-gradient(90deg, var(--accent), var(--pastel-green));
    color: #222;
    cursor: pointer;
    transition: background 0.18s, box-shadow 0.18s;
    box-shadow: 0 2px 8px rgba(163,191,250,0.10);
    text-decoration: none;
    display: inline-block;
}
.student-btn:hover {
    background: linear-gradient(90deg, var(--accent-dark), var(--pastel-pink));
    color: #fff;
}

@media (max-width: 700px) {
    .login-container {
        width: 90vw;
        max-width: 90vw;
        padding: 18px 2vw 12px 2vw;
    }
    .container {
        width: 95vw !important;
        max-width: 95vw !important;
        margin-left: auto;
        margin-right: auto;
        padding: 12px 2vw 8px 2vw;
    }
    .card {
        background: var(--card-bg);
        border: 1.5px solid var(--border);
        border-radius: var(--card-radius);
        box-shadow: 0 2px 16px rgba(163,191,250,0.10);
        padding: 22px 18px 18px 18px;
        margin-top: 10px;
        transition: box-shadow 0.22s, border 0.18s;
    }
    .card:hover {
        box-shadow: 0 8px 32px rgba(163,191,250,0.18);
        border: 1.5px solid var(--accent);
    }
}