:root {
    --bg: #edf4fb;
    --surface: #ffffff;
    --surface-soft: #f7fbff;
    --text: #23313f;
    --muted: #647383;
    --faint: #8a98a8;
    --accent: #6f96c2;
    --accent-soft: #d8e6f7;
    --accent-strong: #517da9;
    --blue-chip: #d5e5f7;
    --blue-chip-border: #79a4d1;
    --success: #1f7a4d;
    --success-soft: #e4f5ec;
    --warning: #a06a1a;
    --warning-soft: #fff3d8;
    --warning-border: #dba75e;
    --danger: #a94442;
    --danger-soft: #fde8e8;
    --border: #d6e2ef;
    --shadow: 0 24px 60px rgba(35, 49, 63, 0.12);
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(157, 191, 229, 0.36), transparent 32rem),
        linear-gradient(135deg, #edf4fb 0%, #f9fcff 48%, #edf4fb 100%);
    color: var(--text);
    font-family: Avenir, "Trebuchet MS", Verdana, sans-serif;
}

button,
input {
    font: inherit;
}

button {
    cursor: pointer;
}

button:focus-visible,
summary:focus-visible {
    outline: 3px solid rgba(111, 150, 194, 0.8);
    outline-offset: 3px;
}

.auth-view {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem;
}

.auth-card {
    width: min(100%, 460px);
    padding: clamp(1.6rem, 4vw, 2.4rem);
    border: 1px solid rgba(111, 150, 194, 0.22);
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.eyebrow {
    margin: 0 0 0.6rem;
    color: var(--accent-strong);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2.35rem, 7vw, 4.4rem);
    line-height: 0.96;
    letter-spacing: -0.05em;
}

.auth-copy {
    margin: 1rem 0 1.6rem;
    color: var(--muted);
    font-size: 1.05rem;
}

.login-form,
.login-form label {
    display: grid;
    gap: 0.7rem;
}

.login-form {
    gap: 1rem;
}

label span {
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 800;
}

input {
    width: 100%;
    min-height: 52px;
    padding: 0 1rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #ffffff;
    color: var(--text);
    outline: none;
}

input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(111, 150, 194, 0.16);
}

button[type="submit"] {
    min-height: 48px;
    padding: 0 1.1rem;
    border: 1px solid var(--accent);
    border-radius: 16px;
    background: var(--accent);
    color: #ffffff;
    font-weight: 900;
    transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

button[type="submit"]:hover {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
    transform: translateY(-1px);
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.62;
    transform: none;
}

.status {
    min-height: 1.35em;
    margin: 0;
    color: var(--muted);
    font-weight: 800;
}

.status.is-error {
    color: var(--danger);
}

.status.is-success {
    color: var(--success);
}

.app-view {
    width: min(100% - 2rem, 1500px);
    margin: 0 auto;
    padding: clamp(1rem, 3vw, 2.4rem) 0 3rem;
}

.app-header {
    display: flex;
    justify-content: space-between;
    gap: 1.2rem;
    align-items: flex-start;
    margin-bottom: 1.4rem;
}

.session-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid rgba(111, 150, 194, 0.2);
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.78);
    box-shadow: 0 10px 24px rgba(35, 49, 63, 0.08);
}

.account-trigger {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.8rem;
    min-height: 54px;
    padding: 0.35rem 0.45rem 0.35rem 0.35rem;
    border: 1px solid transparent;
    border-radius: 20px;
    background: transparent;
    color: var(--text);
    text-align: left;
    cursor: pointer;
}

.account-trigger:hover,
.account-trigger[aria-expanded="true"] {
    border-color: rgba(111, 150, 194, 0.28);
    background: rgba(247, 251, 255, 0.84);
}

.account-trigger:focus-visible {
    outline: 3px solid rgba(111, 150, 194, 0.8);
    outline-offset: 3px;
}

.student-avatar {
    position: relative;
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 16px;
    background:
        radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.88), transparent 40%),
        linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #ffffff;
    font-weight: 900;
    letter-spacing: -0.04em;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
    overflow: hidden;
}

.student-avatar img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    object-fit: cover;
}

.student-avatar.has-image {
    color: transparent;
}

.student-avatar.is-large {
    width: 56px;
    height: 56px;
    border-radius: 20px;
    font-size: 1.25rem;
}

.session-copy {
    min-width: 0;
}

.session-copy span,
.session-copy small {
    display: block;
}

.session-copy span {
    font-weight: 900;
}

.session-copy small {
    color: var(--muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.session-chevron {
    color: var(--muted);
    font-size: 1rem;
    font-weight: 900;
    transform: translateY(-1px);
}

.account-menu {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: grid;
    place-items: center;
    width: auto;
    max-height: none;
    overflow: auto;
    padding: clamp(0.8rem, 2vw, 1.5rem);
    background: rgba(35, 49, 63, 0.34);
    backdrop-filter: blur(10px);
}

.account-settings-window {
    display: grid;
    grid-template-columns: minmax(220px, 285px) minmax(0, 1fr);
    width: min(1120px, 100%);
    max-height: min(820px, calc(100vh - 2rem));
    overflow: hidden;
    border: 1px solid rgba(111, 150, 194, 0.22);
    border-radius: 32px;
    background:
        radial-gradient(circle at top left, rgba(111, 150, 194, 0.18), transparent 22rem),
        rgba(255, 255, 255, 0.97);
    box-shadow: 0 24px 60px rgba(35, 49, 63, 0.16);
}

.account-settings-sidebar {
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: 1rem;
    min-height: 0;
    padding: 1.15rem;
    border-right: 1px solid rgba(111, 150, 194, 0.18);
    background:
        linear-gradient(180deg, rgba(247, 251, 255, 0.92), rgba(237, 244, 251, 0.78));
}

.account-sidebar-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.85rem;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(111, 150, 194, 0.16);
}

.account-sidebar-head strong,
.account-sidebar-head span {
    display: block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.account-sidebar-head strong {
    font-size: 1.02rem;
}

.account-sidebar-head span {
    color: var(--muted);
    font-size: 0.86rem;
}

.account-settings-nav {
    display: grid;
    align-content: start;
    gap: 0.35rem;
    overflow: auto;
}

.account-settings-nav button {
    min-height: 42px;
    padding: 0 0.9rem;
    border: 1px solid transparent;
    border-radius: 14px;
    background: transparent;
    color: var(--muted);
    font-weight: 900;
    text-align: left;
}

.account-settings-nav button:hover,
.account-settings-nav button.is-active {
    border-color: rgba(111, 150, 194, 0.22);
    background: rgba(255, 255, 255, 0.82);
    color: var(--text);
}

.account-sidebar-note {
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.42;
}

.account-settings-content {
    position: relative;
    min-width: 0;
    min-height: 0;
    overflow: auto;
    padding: clamp(1.2rem, 2.4vw, 2rem);
}

.account-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 1.6rem;
    line-height: 1;
    font-weight: 900;
}

.account-content-head {
    max-width: 740px;
    padding-right: 3.4rem;
    margin-bottom: 1.2rem;
}

.account-content-head h2 {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 0.95;
    letter-spacing: -0.055em;
}

.account-content-head p:last-child {
    margin: 0.7rem 0 0;
    color: var(--muted);
    font-size: 1.02rem;
}

.account-panel {
    display: none;
}

.account-panel.is-active {
    display: grid;
    gap: 1rem;
}

.account-photo-hero,
.account-text-card,
.account-security-state,
.account-password-card,
.account-plan-hero,
.account-data-grid article,
.account-permission-list {
    border: 1px solid rgba(111, 150, 194, 0.16);
    background: rgba(247, 251, 255, 0.76);
}

.account-photo-hero {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: center;
    padding: 1rem;
    border-radius: 24px;
}

.account-photo-hero span,
.account-photo-hero strong,
.account-photo-hero p {
    display: block;
}

.account-photo-hero span:not(.student-avatar):not(.account-lock-pill) {
    color: var(--accent-strong);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.account-photo-hero strong {
    margin-top: 0.15rem;
    font-size: 1.2rem;
}

.account-photo-hero p {
    margin: 0.1rem 0 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.student-avatar.is-photo {
    width: 64px;
    height: 64px;
    border-radius: 22px;
    font-size: 1.35rem;
}

.account-lock-pill {
    padding: 0.34rem 0.7rem;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 0.75rem;
    font-weight: 900;
}

.account-data-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.7rem;
}

.account-data-grid span,
.account-data-grid strong {
    display: block;
}

.account-data-grid span {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.account-data-grid strong {
    margin-top: 0.2rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.account-data-grid article {
    min-width: 0;
    padding: 0.9rem;
    border-radius: 18px;
}

.account-data-grid article.is-wide {
    grid-column: 1 / -1;
}

.account-text-card {
    padding: 1rem;
    border-radius: 22px;
}

.account-text-card span {
    color: var(--accent-strong);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.account-text-card p {
    margin: 0.55rem 0 0;
    color: var(--text);
    line-height: 1.55;
}

.account-note,
.account-hint,
.account-soft-line {
    color: var(--muted);
    line-height: 1.45;
}

.account-note {
    margin: 0.8rem 0 0;
    font-size: 0.9rem;
}

.account-plan-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: center;
    padding: 1.1rem;
    border-radius: 24px;
}

.account-plan-hero span,
.account-plan-metrics span,
.account-permission-list span,
.account-security-state span {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 900;
}

.account-plan-hero strong {
    display: block;
    margin-top: 0.15rem;
    font-size: 1.3rem;
}

.account-plan-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(110px, 1fr));
    gap: 0.65rem;
}

.account-plan-metrics article {
    padding: 0.85rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.78);
}

.account-plan-metrics strong {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.45rem;
    font-feature-settings: "tnum";
}

.account-soft-line {
    margin: 0;
    font-size: 0.9rem;
}

.account-permission-list {
    display: grid;
    gap: 0;
    padding: 0 1rem;
    border-radius: 22px;
}

.account-permission-list p {
    display: flex;
    justify-content: space-between;
    gap: 0.8rem;
    margin: 0;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(111, 150, 194, 0.12);
}

.account-permission-list p:last-child {
    border-bottom: none;
}

.account-permission-list strong {
    text-align: right;
}

.account-permission-list p.is-editable {
    align-items: center;
}

.account-permission-list p.is-editable > span {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    text-transform: none;
    letter-spacing: 0;
    color: var(--text);
    font-weight: 700;
    font-size: 0.95rem;
}

.account-permission-list p.is-editable > span small {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1.35;
}

.account-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    user-select: none;
}

.account-toggle input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.account-toggle-track {
    position: relative;
    width: 42px;
    height: 24px;
    border-radius: 999px;
    background: rgba(111, 150, 194, 0.28);
    transition: background 160ms ease;
}

.account-toggle-track::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgba(15, 30, 60, 0.18);
    transition: transform 160ms ease;
}

.account-toggle input:checked + .account-toggle-track {
    background: var(--accent-strong);
}

.account-toggle input:checked + .account-toggle-track::after {
    transform: translateX(18px);
}

.account-toggle input:focus-visible + .account-toggle-track {
    outline: 2px solid var(--accent-strong);
    outline-offset: 2px;
}

.account-toggle-label {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--accent-strong);
    letter-spacing: 0;
    text-transform: none;
    min-width: 5.5rem;
    text-align: right;
}

.account-photo-hero {
    grid-template-columns: auto minmax(0, 1fr) auto;
}

.account-photo-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.4rem;
}

.account-photo-button {
    border: none;
    background: var(--accent-strong);
    color: #fff;
    padding: 0.55rem 0.95rem;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 160ms ease, transform 160ms ease;
}

.account-photo-button:hover {
    transform: translateY(-1px);
}

.account-photo-button.is-ghost {
    background: transparent;
    color: var(--accent-strong);
    border: 1px solid rgba(111, 150, 194, 0.35);
}

.account-photo-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.account-photo-actions .status {
    margin: 0;
    font-size: 0.8rem;
    text-align: right;
}

.flex-policy-modal {
    position: fixed;
    inset: 0;
    z-index: 65;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.flex-policy-modal[hidden] {
    display: none;
}

.flex-policy-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 30, 60, 0.45);
    backdrop-filter: blur(4px);
}

.flex-policy-card {
    position: relative;
    background: #fff;
    border-radius: 22px;
    padding: 1.4rem 1.4rem 1.2rem;
    width: min(520px, 100%);
    max-height: 90vh;
    overflow: auto;
    box-shadow: 0 24px 60px rgba(15, 30, 60, 0.25);
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.flex-policy-card h2 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--accent-strong);
}

.flex-policy-card .eyebrow {
    margin: 0;
}

.flex-policy-body {
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.5;
}

.flex-policy-body p {
    margin: 0 0 0.6rem;
}

.flex-policy-body ul {
    margin: 0 0 0.6rem;
    padding-left: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.flex-policy-check {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    background: rgba(111, 150, 194, 0.1);
    border-radius: 14px;
    padding: 0.7rem 0.9rem;
    font-size: 0.92rem;
    cursor: pointer;
}

.flex-policy-check input {
    margin-top: 0.2rem;
}

.flex-policy-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
}

.flex-policy-actions .modal-primary,
.flex-policy-actions .modal-secondary {
    padding: 0.55rem 1.05rem;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
}

.flex-policy-actions .modal-primary {
    background: var(--accent-strong);
    color: #fff;
}

.flex-policy-actions .modal-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.flex-policy-actions .modal-secondary {
    background: transparent;
    color: var(--accent-strong);
    border: 1px solid rgba(111, 150, 194, 0.35);
}

.photo-crop-modal {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.photo-crop-modal[hidden] {
    display: none;
}

.photo-crop-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 30, 60, 0.45);
    backdrop-filter: blur(4px);
}

.photo-crop-card {
    position: relative;
    background: #fff;
    border-radius: 22px;
    padding: 1.4rem 1.4rem 1.2rem;
    width: min(420px, 100%);
    box-shadow: 0 24px 60px rgba(15, 30, 60, 0.25);
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.photo-crop-card h2 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--accent-strong);
}

.photo-crop-hint {
    margin: 0;
    color: var(--muted);
    font-size: 0.88rem;
    line-height: 1.4;
}

.photo-crop-stage {
    position: relative;
    width: 320px;
    height: 320px;
    margin: 0 auto;
    border-radius: 18px;
    overflow: hidden;
    background: #0f1e3c;
    cursor: grab;
    touch-action: none;
}

.photo-crop-stage:active {
    cursor: grabbing;
}

.photo-crop-stage img {
    position: absolute;
    top: 50%;
    left: 50%;
    max-width: none;
    user-select: none;
    pointer-events: none;
    transform: translate(-50%, -50%);
}

.photo-crop-mask {
    position: absolute;
    inset: 0;
    pointer-events: none;
    box-shadow: 0 0 0 9999px rgba(15, 30, 60, 0.55);
    border-radius: 50%;
}

.photo-crop-zoom {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--muted);
    font-weight: 700;
}

.photo-crop-zoom input[type="range"] {
    flex: 1;
    accent-color: var(--accent-strong);
}

.photo-crop-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
}

.photo-crop-actions .modal-primary,
.photo-crop-actions .modal-secondary {
    padding: 0.55rem 1.05rem;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
}

.photo-crop-actions .modal-primary {
    background: var(--accent-strong);
    color: #fff;
}

.photo-crop-actions .modal-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.photo-crop-actions .modal-secondary {
    background: transparent;
    color: var(--accent-strong);
    border: 1px solid rgba(111, 150, 194, 0.35);
}

.account-security-state {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem;
    border-radius: 20px;
}

.account-password-card {
    padding: 1rem;
    border-radius: 20px;
}

.account-password-card h3 {
    margin: 0;
    font-size: 1.15rem;
}

.secondary-button,
.ghost-button,
#logout-button {
    min-height: 42px;
    padding: 0 0.9rem;
    border-radius: 14px;
    font-weight: 900;
}

.secondary-button {
    border: 1px solid var(--accent);
    background: #ffffff;
    color: var(--accent-strong);
}

.ghost-button,
#logout-button {
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
}

.week-toolbar {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: 0.8rem;
    align-items: center;
    padding: 1.15rem 1.25rem;
    border: 1px solid rgba(111, 150, 194, 0.2);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.78);
    box-shadow: 0 12px 28px rgba(35, 49, 63, 0.08);
}

.week-toolbar strong,
.week-toolbar span {
    display: block;
    text-align: center;
}

.week-toolbar strong {
    font-size: 1.15rem;
}

.week-toolbar span {
    color: var(--muted);
    font-size: 0.92rem;
}

.summary-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
    margin: 1rem 0;
}

.summary-strip article {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    padding: 1rem 1.3rem;
    border: 1px solid rgba(111, 150, 194, 0.18);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.74);
}

.summary-strip span,
.summary-strip strong {
    display: block;
}

.summary-strip span {
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 800;
}

.summary-strip strong {
    margin-top: 0;
    font-size: 2rem;
}

.account-hint {
    margin: 0.35rem 0 0;
    color: var(--muted);
    font-size: 0.92rem;
}

.password-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.password-form label {
    display: grid;
    gap: 0.6rem;
}

.password-form button,
.password-form .status {
    grid-column: 1 / -1;
}

.password-form button {
    min-height: 52px;
}

.app-status {
    margin: 0.4rem 0 0.9rem;
}

.empty-day {
    margin: 1rem 0 0;
    padding: 1.6rem;
    border: 1px dashed rgba(111, 150, 194, 0.3);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.5);
    color: var(--faint);
    font-size: 0.95rem;
    text-align: center;
}

/* === Toolbar === */
.week-toolbar {
    grid-template-columns: auto 1fr auto;
}

.nav-cluster {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.icon-button {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    font-size: 1.4rem;
    line-height: 1;
    font-weight: 900;
}

.icon-button:hover {
    background: #ffffff;
    border-color: var(--accent);
    color: var(--accent-strong);
}

.period-label {
    text-align: center;
}

.period-label strong {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.4rem;
    letter-spacing: -0.01em;
    font-feature-settings: "tnum";
}

.view-tabs {
    display: flex;
    padding: 4px;
    border-radius: 14px;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    gap: 2px;
}

.view-tab {
    min-height: 36px;
    padding: 0 0.85rem;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--muted);
    font-weight: 900;
    font-size: 0.9rem;
}

.view-tab.is-active {
    background: var(--surface);
    color: var(--accent-strong);
    box-shadow: 0 4px 10px rgba(35, 49, 63, 0.08);
}

.view-tab[disabled] {
    opacity: 0.42;
    cursor: not-allowed;
}

/* === Summary === */
.summary-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.summary-strip strong {
    font-family: Georgia, "Times New Roman", serif;
    font-feature-settings: "tnum";
    letter-spacing: -0.02em;
}

.summary-filter {
    display: flex;
    align-items: center;
    justify-content: center;
}

.filter-pill {
    width: 100%;
    min-height: 48px;
    padding: 0 0.9rem;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface);
    color: var(--text);
    font-weight: 900;
    font-size: 0.92rem;
}

.filter-pill::before {
    content: "";
    display: inline-block;
    width: 0.5rem;
    height: 0.5rem;
    margin-right: 0.55rem;
    border-radius: 999px;
    background: var(--faint);
    vertical-align: 0.08em;
}

.filter-pill.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
}

.filter-pill.is-active::before {
    background: #ffffff;
}

/* === Calendar matrix === */
.calendar-container {
    margin-top: 0.4rem;
}

.app-view.is-loading .calendar-container {
    opacity: 0.7;
    pointer-events: none;
}

.cal-matrix {
    display: grid;
    gap: 0;
    border: 1px solid rgba(111, 150, 194, 0.18);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.76);
    overflow: hidden;
    box-shadow: 0 18px 42px rgba(35, 49, 63, 0.08);
}

.cal-row {
    display: grid;
    grid-template-columns: 76px repeat(var(--calendar-days, 7), minmax(0, 1fr));
    border-bottom: 1px solid rgba(111, 150, 194, 0.14);
}

.cal-row:last-child {
    border-bottom: none;
}

.cal-header {
    position: sticky;
    top: 0;
    z-index: 5;
    background: rgba(247, 251, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(111, 150, 194, 0.22);
}

.cal-time-col {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 0.2rem;
    color: var(--muted);
    font-family: Georgia, "Times New Roman", serif;
    font-feature-settings: "tnum";
    font-size: 1rem;
    font-weight: 700;
    border-right: 1px solid rgba(111, 150, 194, 0.14);
    background: rgba(247, 251, 255, 0.6);
}

.cal-day-head {
    position: relative;
    min-height: 86px;
    padding: 0.9rem 0.4rem 0.7rem;
    text-align: center;
    border-right: 1px solid rgba(111, 150, 194, 0.14);
}

.cal-day-head:last-child {
    border-right: none;
}

.cal-day-head .cal-day-name {
    display: block;
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.cal-day-head .cal-day-num {
    display: block;
    margin-top: 0.1rem;
    font-family: Georgia, "Times New Roman", serif;
    font-feature-settings: "tnum";
    font-size: 1.75rem;
    line-height: 1;
}

.cal-day-head.is-today .cal-day-num {
    color: var(--accent-strong);
}

.cal-today-pill {
    display: inline-block;
    margin-top: 0.32rem;
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    background: var(--accent);
    color: #ffffff;
    font-size: 0.62rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.cal-cell {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-height: 76px;
    padding: 0.45rem;
    border-right: 1px solid rgba(111, 150, 194, 0.1);
}

.cal-cell:last-child {
    border-right: none;
}

.cal-chip {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.08rem;
    width: 100%;
    min-height: 58px;
    padding: 0.45rem 0.5rem;
    border: 1px solid var(--blue-chip-border);
    border-radius: 14px;
    background: var(--blue-chip);
    color: var(--accent-strong);
    font-weight: 800;
    text-align: center;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    box-shadow: 0 2px 6px rgba(35, 49, 63, 0.06);
    cursor: pointer;
}

.cal-chip:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(35, 49, 63, 0.12);
}

.cal-chip:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

.cal-chip-time {
    font-family: Georgia, "Times New Roman", serif;
    font-feature-settings: "tnum";
    font-size: 1.12rem;
    color: var(--text);
    line-height: 1;
}

.cal-chip-label {
    font-size: 0.86rem;
    font-weight: 900;
    letter-spacing: 0.02em;
    color: var(--accent-strong);
    font-feature-settings: "tnum";
}

.cal-chip.is-mine {
    background: linear-gradient(180deg, #ffffff, var(--success-soft));
    border-color: var(--success);
}

.cal-chip.is-mine .cal-chip-label {
    color: var(--success);
}

.cal-chip.is-last {
    border-color: var(--warning-border);
    background: linear-gradient(180deg, #ffffff, var(--warning-soft));
}

.cal-chip.is-last .cal-chip-label {
    color: var(--warning);
}

.cal-chip.is-full {
    background: #e8edf3;
    border-color: rgba(111, 150, 194, 0.22);
    color: var(--faint);
    box-shadow: none;
    cursor: default;
}

.cal-chip.is-full:hover {
    transform: none;
    box-shadow: none;
}

.cal-chip.is-full .cal-chip-time,
.cal-chip.is-full .cal-chip-label {
    color: var(--faint);
}

.cal-chip.is-blocked {
    background: rgba(255, 255, 255, 0.72);
    border-color: rgba(111, 150, 194, 0.26);
    color: var(--muted);
    box-shadow: none;
}

.cal-chip.is-blocked .cal-chip-label {
    color: var(--muted);
}

.cal-chip.is-past {
    opacity: 0.45;
    cursor: not-allowed;
    filter: grayscale(0.4);
}

.cal-chip.is-past.is-mine {
    opacity: 0.85;
    filter: grayscale(0);
}

.cal-chip[disabled] {
    cursor: not-allowed;
    opacity: 1;
}

/* === Day list view === */
.cal-day-list {
    display: grid;
    gap: 0.7rem;
}

.cal-day-row {
    display: grid;
    grid-template-columns: 80px 1fr;
    align-items: center;
    gap: 1rem;
    min-height: 64px;
    padding: 1rem 1.1rem;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface);
    text-align: left;
    box-shadow: 0 6px 14px rgba(35, 49, 63, 0.06);
    cursor: pointer;
}

.cal-day-row:hover {
    border-color: var(--accent);
}

.cal-day-row:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

.cal-day-time {
    font-family: Georgia, "Times New Roman", serif;
    font-feature-settings: "tnum";
    font-size: 1.5rem;
    color: var(--text);
}

.cal-day-info {
    display: grid;
    gap: 0.2rem;
}

.cal-day-info strong {
    font-size: 1rem;
}

.cal-day-meta {
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 800;
}

.cal-day-row.is-mine {
    border-color: var(--success);
    background: linear-gradient(180deg, #ffffff, var(--success-soft));
}

.cal-day-row.is-mine .cal-day-meta {
    color: var(--success);
}

.cal-day-row.is-full {
    opacity: 0.62;
    cursor: default;
}

.cal-day-row:disabled {
    opacity: 1;
}

.cal-day-row:disabled.is-full {
    opacity: 0.62;
}

.cal-day-row.is-blocked {
    background: rgba(255, 255, 255, 0.72);
    box-shadow: none;
}

.cal-day-row.is-past {
    opacity: 0.4;
    cursor: not-allowed;
}

/* === Modal === */
.class-modal {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: grid;
    place-items: center;
    padding: 1rem;
}

.class-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(35, 49, 63, 0.46);
    backdrop-filter: blur(4px);
}

.class-modal-card {
    position: relative;
    width: min(100%, 480px);
    padding: 1.6rem 1.6rem 1.4rem;
    border-radius: 26px;
    background: var(--surface);
    box-shadow: var(--shadow);
    display: grid;
    gap: 0.9rem;
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: 10px;
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 1.4rem;
    line-height: 1;
}

.modal-close:hover {
    background: var(--accent-soft);
    color: var(--accent-strong);
}

.modal-time {
    display: grid;
    gap: 0.1rem;
    margin-top: 0.2rem;
}

.modal-time strong {
    font-family: Georgia, "Times New Roman", serif;
    font-feature-settings: "tnum";
    font-size: 3rem;
    line-height: 1;
    letter-spacing: -0.04em;
}

.modal-time span {
    color: var(--muted);
    font-weight: 800;
    text-transform: capitalize;
}

.class-modal-card h2 {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.55rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.modal-desc {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.modal-person {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface-soft);
}

.modal-person-avatar {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-weight: 900;
}

.modal-person strong,
.modal-person span {
    display: block;
}

.modal-person div > span {
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 800;
}

.modal-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.6rem;
    padding: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface-soft);
}

.modal-stats > div {
    display: grid;
    gap: 0.15rem;
    text-align: center;
}

.modal-stats strong {
    font-family: Georgia, "Times New Roman", serif;
    font-feature-settings: "tnum";
    font-size: 1.55rem;
    line-height: 1;
}

.modal-stats span {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.modal-deadline {
    margin: 0;
    color: var(--warning);
    font-size: 0.88rem;
    font-weight: 800;
}

.modal-actions {
    display: grid;
    gap: 0.6rem;
}

.modal-primary {
    min-height: 52px;
    padding: 0 1.1rem;
    border: 1px solid var(--accent);
    border-radius: 16px;
    background: var(--accent);
    color: #ffffff;
    font-weight: 900;
    font-size: 1rem;
}

.modal-primary:hover:not(:disabled) {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
}

.modal-primary.is-cancel {
    background: #ffffff;
    color: var(--danger);
    border-color: var(--danger);
}

.modal-primary.is-cancel:hover:not(:disabled) {
    background: var(--danger-soft);
}

.modal-secondary {
    min-height: 52px;
    padding: 0 1.1rem;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: transparent;
    color: var(--muted);
    font-weight: 900;
}

.modal-secondary:hover {
    background: var(--surface-soft);
    color: var(--text);
}

body.modal-open {
    overflow: hidden;
}

body.account-open {
    overflow: hidden;
}

/* === Toast === */
.toast {
    position: fixed;
    left: 50%;
    bottom: 1.4rem;
    transform: translateX(-50%);
    padding: 0.85rem 1.3rem;
    border-radius: 999px;
    background: var(--text);
    color: #ffffff;
    font-weight: 800;
    z-index: 60;
    box-shadow: 0 18px 40px rgba(35, 49, 63, 0.24);
}

.toast.is-success {
    background: var(--success);
}

.toast.is-error {
    background: var(--danger);
}

/* === Responsive === */
@media (max-width: 980px) {
    .summary-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .account-settings-window {
        grid-template-columns: 1fr;
        max-height: calc(100vh - 2rem);
    }

    .account-settings-sidebar {
        grid-template-rows: auto auto;
        border-right: none;
        border-bottom: 1px solid rgba(111, 150, 194, 0.18);
    }

    .account-settings-nav {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        overflow: visible;
    }

    .account-sidebar-note {
        display: none;
    }

    .week-toolbar {
        grid-template-columns: 1fr;
    }

    .week-toolbar .nav-cluster {
        justify-content: space-between;
    }

    .view-tabs {
        justify-self: stretch;
    }
}

@media (max-width: 720px) {
    .auth-view {
        padding: 1rem;
    }

    .app-header {
        flex-direction: column;
    }

    .session-card {
        align-self: stretch;
        flex-wrap: wrap;
    }

    .account-trigger {
        flex: 1 1 100%;
    }

    #logout-button {
        flex: 1 1 100%;
    }

    .account-menu {
        padding: 0.6rem;
    }

    .account-settings-window {
        border-radius: 24px;
    }

    .account-settings-sidebar,
    .account-settings-content {
        padding: 1rem;
    }

    .account-settings-nav {
        grid-template-columns: 1fr 1fr;
    }

    .account-settings-nav button {
        min-height: 38px;
        padding: 0 0.7rem;
        font-size: 0.86rem;
    }

    .account-data-grid {
        grid-template-columns: 1fr;
    }

    .account-photo-hero,
    .account-plan-hero {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .account-lock-pill {
        grid-column: 1 / -1;
        justify-self: start;
    }

    .account-plan-metrics {
        grid-column: 1 / -1;
        grid-template-columns: 1fr 1fr;
    }

    .summary-strip {
        grid-template-columns: 1fr 1fr;
    }

    .password-form {
        grid-template-columns: 1fr;
    }

    .cal-matrix {
        display: none;
    }

    .view-tab[data-view="semana"] {
        display: none;
    }

    .modal-time strong {
        font-size: 2.4rem;
    }
}

.low-credits {
    color: #b22222;
    font-weight: 700;
}