:root {
    --gt-bg: #08080C;
    --gt-bg-soft: #0E0E14;
    --gt-surface: #12121A;
    --gt-card: rgba(255, 255, 255, 0.035);
    --gt-card-solid: #16161F;
    --gt-border: rgba(255, 255, 255, 0.07);
    --gt-border-strong: rgba(255, 255, 255, 0.12);
    --gt-accent: #5DFF9A;
    --gt-accent-dim: rgba(93, 255, 154, 0.12);
    --gt-violet: #8B7CFF;
    --gt-violet-dim: rgba(139, 124, 255, 0.16);
    --gt-text: #F5F5F7;
    --gt-muted: #9B9BA7;
    --gt-danger: #FF6B8A;
    --gt-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
    --gt-radius: 1.25rem;
    --gt-radius-sm: 0.9rem;
    --gt-font: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
    --gt-input-bg: #1E1E2A;
    --gt-input-text: #F5F5F7;
}

html {
    font-size: 16px;
}

* { box-sizing: border-box; }

body.gt-body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--gt-font);
    color: var(--gt-text);
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(139, 124, 255, 0.18), transparent 55%),
        radial-gradient(ellipse 50% 40% at 100% 0%, rgba(93, 255, 154, 0.06), transparent 45%),
        var(--gt-bg);
    -webkit-font-smoothing: antialiased;
}

.gt-shell {
    width: min(100%, 28rem);
    margin: 0 auto;
    padding: 1.25rem 1.25rem 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.gt-app {
    width: min(100%, 30rem);
    margin: 0 auto;
    min-height: 100vh;
    padding: 1rem 1rem 5.5rem;
}

.gt-brand {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.gt-brand img,
.gt-topbar img {
    height: auto;
    filter: drop-shadow(0 10px 24px rgba(139, 124, 255, 0.22));
}

.gt-brand img {
    width: min(100%, 15rem);
}

.gt-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.gt-topbar img { height: 2.25rem; width: auto; }

.gt-card {
    background: var(--gt-card);
    border: 1px solid var(--gt-border);
    border-radius: calc(var(--gt-radius) + 0.15rem);
    padding: 1.35rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--gt-shadow);
}

.gt-title {
    font-size: 1.55rem;
    font-weight: 750;
    letter-spacing: -0.04em;
    margin: 0 0 0.4rem;
    line-height: 1.15;
}

.gt-subtitle {
    margin: 0 0 1.35rem;
    color: var(--gt-muted);
    line-height: 1.55;
    font-size: 0.94rem;
}

.gt-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: #D4D4DC;
}

.gt-input {
    width: 100%;
    border-radius: var(--gt-radius-sm);
    border: 1px solid var(--gt-border);
    background: var(--gt-input-bg);
    color: var(--gt-input-text);
    padding: 0.88rem 1rem;
    font-size: 1rem;
    outline: none;
    transition: border-color .2s, box-shadow .2s, background .2s;
    color-scheme: dark;
}

select.gt-input {
    cursor: pointer;
    appearance: auto;
}

select.gt-input option,
select.gt-input optgroup {
    background-color: var(--gt-input-bg);
    color: var(--gt-input-text);
}

input.gt-input[type="date"],
input.gt-input[type="time"],
input.gt-input[type="datetime-local"] {
    color-scheme: dark;
}

.gt-input::placeholder { color: #6F6F7A; }

.gt-input:focus {
    border-color: rgba(139, 124, 255, 0.55);
    background: rgba(255, 255, 255, 0.045);
    box-shadow: 0 0 0 4px var(--gt-violet-dim);
}

.gt-field { margin-bottom: 1rem; }

.gt-error {
    color: var(--gt-danger);
    font-size: 0.82rem;
    margin-top: 0.35rem;
}

.gt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    border: 0;
    border-radius: 999px;
    padding: 0.92rem 1.1rem;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    transition: transform .15s ease, filter .15s ease, background .15s ease;
    font-family: inherit;
}

.gt-btn:active { transform: scale(0.985); }

.gt-btn-primary {
    background: var(--gt-accent);
    color: #06140C;
}

.gt-btn-primary:hover { filter: brightness(1.04); }

.gt-btn-google {
    background: #FFFFFF;
    color: #111113;
    margin-bottom: 1rem;
}

.gt-btn-ghost {
    background: transparent;
    color: var(--gt-muted);
    border: 1px solid var(--gt-border);
}

.gt-divider {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0.75rem;
    align-items: center;
    color: var(--gt-muted);
    font-size: 0.78rem;
    margin: 0.25rem 0 1rem;
}

.gt-divider::before,
.gt-divider::after {
    content: "";
    height: 1px;
    background: var(--gt-border);
}

.gt-roles {
    display: grid;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.gt-role { position: relative; }

.gt-role input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.gt-role label {
    display: block;
    border: 1px solid var(--gt-border);
    background: rgba(255, 255, 255, 0.02);
    border-radius: 1rem;
    padding: 0.9rem 1rem;
    cursor: pointer;
    transition: border-color .2s, background .2s, transform .15s;
}

.gt-role input:checked + label {
    border-color: rgba(93, 255, 154, 0.45);
    background: var(--gt-accent-dim);
}

.gt-role strong {
    display: block;
    font-size: 0.94rem;
    margin-bottom: 0.15rem;
}

.gt-role span {
    color: var(--gt-muted);
    font-size: 0.82rem;
    line-height: 1.35;
}

.gt-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin: 0.25rem 0 1rem;
    font-size: 0.9rem;
}

.gt-link {
    color: var(--gt-accent);
    text-decoration: none;
    font-weight: 600;
}

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

.gt-footer {
    text-align: center;
    margin-top: 1.25rem;
    color: var(--gt-muted);
    font-size: 0.92rem;
}

.gt-alert {
    border-radius: var(--gt-radius-sm);
    padding: 0.85rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.4;
}

.gt-alert-ok {
    background: var(--gt-accent-dim);
    border: 1px solid rgba(93, 255, 154, 0.22);
    color: #D9FFE8;
}

.gt-alert-error {
    background: rgba(255, 107, 138, 0.1);
    border: 1px solid rgba(255, 107, 138, 0.22);
    color: #FFD5DE;
}

.gt-check {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gt-muted);
}

.gt-check input {
    width: 1.05rem;
    height: 1.05rem;
    accent-color: var(--gt-accent);
}

.gt-chip {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    border-radius: 999px;
    padding: .4rem .75rem;
    background: var(--gt-violet-dim);
    color: #D7D1FF;
    font-size: .76rem;
    font-weight: 700;
    letter-spacing: .01em;
}

.gt-bottom-nav {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: min(100%, 30rem);
    display: grid;
    gap: .25rem;
    padding: .55rem .75rem calc(.55rem + env(safe-area-inset-bottom));
    background: rgba(8, 8, 12, 0.88);
    border-top: 1px solid var(--gt-border);
    backdrop-filter: blur(18px);
}

.gt-bottom-nav--4 {
    grid-template-columns: repeat(4, 1fr);
}

.gt-bottom-nav--2 {
    grid-template-columns: repeat(2, 1fr);
}

.gt-bottom-nav a,
.gt-bottom-nav button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--gt-muted);
    text-decoration: none;
    font-size: .72rem;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
    padding: .35rem;
    cursor: pointer;
    font-family: inherit;
}

.gt-bottom-nav a.active { color: var(--gt-accent); }
.gt-bottom-nav svg { width: 1.2rem; height: 1.2rem; }

.gt-panel {
    background: var(--gt-card);
    border: 1px solid var(--gt-border);
    border-radius: var(--gt-radius);
    padding: 1.15rem;
}

.gt-panel-accent {
    background:
        linear-gradient(145deg, rgba(139, 124, 255, 0.18), rgba(93, 255, 154, 0.06));
    border: 1px solid var(--gt-border);
    border-radius: var(--gt-radius);
    padding: 1.15rem;
}

.gt-dot {
    width: .65rem;
    height: .65rem;
    margin-top: .35rem;
    border-radius: 999px;
    background: var(--gt-accent);
    flex: 0 0 auto;
}

.gt-page-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.gt-stat {
    font-size: .82rem;
    color: var(--gt-muted);
    margin-top: .25rem;
}

.gt-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: .25rem .6rem;
    font-size: .72rem;
    font-weight: 700;
}

.gt-badge-muted {
    background: rgba(255,255,255,.06);
    color: var(--gt-muted);
}

.gt-badge-accent {
    background: var(--gt-accent-dim);
    color: #C9FFE0;
}

.gt-list { display: grid; gap: .75rem; }

.gt-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: 1rem;
    border-radius: var(--gt-radius);
    border: 1px solid var(--gt-border);
    background: var(--gt-card);
    text-decoration: none;
    color: inherit;
}

.gt-list-item strong {
    display: block;
    font-size: .98rem;
    margin-bottom: .15rem;
}

.gt-list-item span { color: var(--gt-muted); font-size: .82rem; }

.gt-credits-pill {
    flex-shrink: 0;
    border-radius: 999px;
    padding: .45rem .7rem;
    background: var(--gt-violet-dim);
    color: #D7D1FF;
    font-weight: 800;
    font-size: .9rem;
}

.gt-empty {
    text-align: center;
    padding: 2.5rem 1rem;
    border-radius: var(--gt-radius);
    border: 1px dashed var(--gt-border);
    color: var(--gt-muted);
}

.gt-empty strong {
    display: block;
    color: var(--gt-text);
    margin-bottom: .35rem;
}

.gt-fab {
    position: fixed;
    right: max(1rem, calc(50% - 14rem));
    bottom: calc(4.75rem + env(safe-area-inset-bottom));
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 999px;
    border: 0;
    background: var(--gt-accent);
    color: #06140C;
    font-size: 1.6rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 12px 30px rgba(93, 255, 154, 0.28);
}

.gt-back {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    color: var(--gt-accent);
    text-decoration: none;
    font-size: .9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding: .35rem 0;
}

.gt-back:hover {
    color: #C9FFE0;
}

.gt-help-steps {
    display: grid;
    gap: .65rem;
    margin-bottom: 1rem;
}

.gt-help-step {
    display: flex;
    gap: .75rem;
    align-items: flex-start;
    padding: .85rem 1rem;
    border-radius: var(--gt-radius-sm);
    border: 1px solid var(--gt-border);
    background: rgba(255, 255, 255, 0.02);
    font-size: .85rem;
    line-height: 1.45;
}

.gt-help-step-num {
    flex-shrink: 0;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 999px;
    background: var(--gt-violet-dim);
    color: #D7D1FF;
    font-size: .75rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gt-credit-big {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -.04em;
    line-height: 1;
    margin: .25rem 0 .15rem;
}

.gt-tx {
    display: flex;
    justify-content: space-between;
    gap: .75rem;
    padding: .75rem 0;
    border-bottom: 1px solid var(--gt-border);
    font-size: .88rem;
}

.gt-tx:last-child { border-bottom: 0; }
.gt-tx small { display: block; color: var(--gt-muted); margin-top: .15rem; }
.gt-tx-amount.positive { color: var(--gt-accent); font-weight: 700; }
.gt-tx-amount.negative { color: var(--gt-danger); font-weight: 700; }

.gt-agenda-settings {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.gt-agenda-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .65rem;
}

.gt-week-grid {
    display: grid;
    gap: .65rem;
}

.gt-week-day {
    border: 1px solid var(--gt-border);
    border-radius: var(--gt-radius);
    background: var(--gt-card);
    overflow: hidden;
}

.gt-week-day.is-empty {
    opacity: .55;
}

.gt-week-day-head {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .65rem .85rem;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--gt-border);
}

.gt-week-day-short {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    background: var(--gt-violet-dim);
    color: #D7D1FF;
    font-size: .72rem;
    font-weight: 800;
}

.gt-week-day-label {
    font-weight: 700;
    font-size: .9rem;
}

.gt-week-off {
    margin: 0;
    padding: .85rem;
    color: var(--gt-muted);
    font-size: .85rem;
}

.gt-agenda-slot {
    padding: .85rem;
    border-bottom: 1px solid var(--gt-border);
}

.gt-agenda-slot:last-child {
    border-bottom: 0;
}

.gt-agenda-slot-time {
    font-weight: 800;
    font-size: 1rem;
    letter-spacing: -.02em;
}

.gt-agenda-slot-meta {
    margin-top: .25rem;
    color: var(--gt-muted);
    font-size: .8rem;
    line-height: 1.4;
}

.gt-agenda-slot-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: .5rem;
}

.gt-agenda-remove {
    appearance: none;
    border: 1px solid var(--gt-border);
    background: rgba(255, 107, 138, 0.08);
    color: var(--gt-danger);
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 999px;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    font-family: inherit;
}

.gt-day-chips {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: .4rem;
}

.gt-day-chip {
    position: relative;
}

.gt-day-chip input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.gt-agenda-slot-body {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: .5rem;
    margin: -.25rem;
    padding: .25rem;
    transition: background .15s;
}

.gt-agenda-slot-body:hover {
    background: rgba(139, 124, 255, 0.08);
}

.gt-day-chip span {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 2.5rem;
    border-radius: .75rem;
    border: 1px solid var(--gt-border);
    background: rgba(255, 255, 255, 0.02);
    color: var(--gt-text);
    font-size: .78rem;
    font-weight: 700;
    cursor: pointer;
    transition: border-color .2s, background .2s, color .2s;
}

.gt-day-chip input:checked + span {
    border-color: rgba(93, 255, 154, 0.45);
    background: var(--gt-accent-dim);
    color: #06140C;
}

@media (max-width: 360px) {
    .gt-day-chips {
        grid-template-columns: repeat(4, 1fr);
    }
}

.gt-cal-slot {
    padding: .85rem;
    border-bottom: 1px solid var(--gt-border);
}

.gt-cal-slot:last-child { border-bottom: 0; }

.gt-cal-slot-free {
    background: rgba(255, 255, 255, 0.02);
}

.gt-cal-slot-partial {
    background: rgba(139, 124, 255, 0.08);
}

.gt-cal-slot-full {
    background: rgba(93, 255, 154, 0.08);
}

.gt-lesson-chips {
    display: grid;
    gap: .45rem;
    margin-top: .55rem;
}

.gt-lesson-chip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    padding: .45rem .65rem;
    border-radius: .65rem;
    background: var(--gt-accent-dim);
    font-size: .85rem;
    font-weight: 600;
}

.gt-lesson-chip > span:not(.gt-avatar) {
    flex: 1;
    min-width: 0;
}

.gt-lesson-chip-actions {
    display: flex;
    gap: .35rem;
    flex-shrink: 0;
}

.gt-lesson-btn {
    appearance: none;
    border: 0;
    width: 1.65rem;
    height: 1.65rem;
    border-radius: 999px;
    font-size: .95rem;
    line-height: 1;
    cursor: pointer;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gt-lesson-btn-done {
    background: var(--gt-accent);
    color: #06140C;
    font-weight: 800;
}

.gt-lesson-btn-cancel {
    background: rgba(255, 107, 138, 0.15);
    color: var(--gt-danger);
}

.gt-slot-book {
    margin-top: .65rem;
}

.gt-slot-book-trigger {
    list-style: none;
    cursor: pointer;
    font-size: .82rem;
    font-weight: 700;
    color: var(--gt-accent);
    padding: .35rem 0;
}

.gt-slot-book-trigger::-webkit-details-marker { display: none; }

.gt-slot-book-form {
    margin-top: .5rem;
    padding-top: .5rem;
    border-top: 1px dashed var(--gt-border);
}

.gt-slot-pick-list {
    display: grid;
    gap: .5rem;
}

.gt-slot-pick-form {
    margin: 0;
}

.gt-slot-pick-btn {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: .15rem;
    padding: .85rem 1rem;
    border-radius: var(--gt-radius-sm);
    border: 1px solid var(--gt-border);
    background: rgba(93, 255, 154, 0.06);
    color: var(--gt-text);
    font-size: .88rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
    transition: border-color .15s, background .15s;
}

.gt-slot-pick-btn:hover {
    border-color: rgba(93, 255, 154, 0.45);
    background: var(--gt-accent-dim);
}

.gt-slot-pick-btn small {
    font-size: .75rem;
    font-weight: 500;
    color: var(--gt-muted);
}

.gt-slot-picker {
    margin-top: .25rem;
}

.gt-slot-day-btn {
    cursor: pointer;
    font-family: inherit;
    appearance: none;
}

.gt-slot-day-btn:not(.is-selected) .gt-month-day-dot {
    opacity: .35;
}

.gt-slot-time-panel {
    display: none;
}

.gt-slot-time-panel.is-visible {
    display: block;
}

.gt-slot-time-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: .5rem;
}

.gt-slot-time-btn {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .1rem;
    min-height: 3.25rem;
    padding: .65rem .5rem;
    border-radius: .75rem;
    border: 1px solid var(--gt-border);
    background: var(--gt-card);
    color: var(--gt-text);
    cursor: pointer;
    font-family: inherit;
    transition: border-color .15s, background .15s;
}

.gt-slot-time-btn strong {
    font-size: .95rem;
    letter-spacing: .02em;
}

.gt-slot-time-btn small {
    font-size: .68rem;
    color: var(--gt-muted);
}

.gt-slot-time-btn:hover {
    border-color: rgba(93, 255, 154, .45);
    background: var(--gt-accent-dim);
}

html[data-theme="light"] .gt-slot-time-btn {
    background: #FFFFFF;
}

html[data-theme="light"] {
    --gt-bg: #F5F6FA;
    --gt-bg-soft: #FFFFFF;
    --gt-surface: #FFFFFF;
    --gt-card: #FFFFFF;
    --gt-card-solid: #FFFFFF;
    --gt-border: #C5C8D4;
    --gt-border-strong: #9A9EB0;
    --gt-accent: #0A7A42;
    --gt-accent-dim: rgba(10, 122, 66, 0.12);
    --gt-violet: #5B4FD4;
    --gt-violet-dim: rgba(91, 79, 212, 0.12);
    --gt-text: #12121A;
    --gt-muted: #3D3D4A;
    --gt-danger: #C41E3A;
    --gt-shadow: 0 8px 28px rgba(18, 18, 26, 0.08);
    --gt-input-bg: #FFFFFF;
    --gt-input-text: #12121A;
}

html[data-theme="light"] body.gt-body {
    background: var(--gt-bg);
    font-size: 1.02rem;
    line-height: 1.55;
}

html[data-theme="light"] .gt-label {
    color: #1A1A24;
    font-size: 0.88rem;
}

html[data-theme="light"] .gt-input {
    border-color: #A8ACBA;
    color-scheme: light;
}

html[data-theme="light"] select.gt-input option,
html[data-theme="light"] select.gt-input optgroup {
    background-color: #FFFFFF;
    color: #12121A;
}

html[data-theme="light"] input.gt-input[type="date"],
html[data-theme="light"] input.gt-input[type="time"],
html[data-theme="light"] input.gt-input[type="datetime-local"] {
    color-scheme: light;
}

html[data-theme="light"] .gt-day-chip span {
    background: #FFFFFF;
    color: #12121A;
    border-color: #A8ACBA;
}

html[data-theme="light"] .gt-day-chip input:checked + span {
    background: var(--gt-accent-dim);
    color: #063D20;
    border-color: var(--gt-accent);
}

html[data-theme="light"] .gt-slot-pick-btn {
    background: #F0FAF4;
    color: #12121A;
    border-color: #8FD4A8;
}

html[data-theme="light"] .gt-lesson-btn-done {
    background: var(--gt-accent);
    color: #FFFFFF;
}

html[data-theme="light"] .gt-topbar img,
html[data-theme="light"] .gt-brand img {
    filter: none;
}

.gt-theme-toggle {
    appearance: none;
    border: 1px solid var(--gt-border);
    background: var(--gt-card-solid);
    color: var(--gt-text);
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 999px;
    font-size: 1.05rem;
    line-height: 1;
    cursor: pointer;
    font-family: inherit;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gt-theme-toggle:hover {
    border-color: var(--gt-border-strong);
}

html[data-theme="light"] .gt-theme-toggle {
    background: #FFFFFF;
}

.gt-a11y-note {
    margin: 0 0 1rem;
    padding: .75rem 1rem;
    border-radius: var(--gt-radius-sm);
    border: 1px solid var(--gt-border);
    background: var(--gt-card-solid);
    font-size: .88rem;
    line-height: 1.45;
    color: var(--gt-muted);
}

/* Avatares e calendário do dia */
.gt-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--gt-violet-dim);
    color: #D7D1FF;
    font-weight: 800;
    letter-spacing: -.02em;
}

.gt-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gt-student-picker {
    position: relative;
}

.gt-student-picker-list {
    position: absolute;
    z-index: 30;
    left: 0;
    right: 0;
    margin-top: .35rem;
    max-height: 14rem;
    overflow: auto;
    border: 1px solid var(--gt-border);
    border-radius: var(--gt-radius-sm);
    background: var(--gt-card-solid);
    box-shadow: var(--gt-shadow);
}

.gt-student-picker-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .65rem .85rem;
    border: 0;
    border-bottom: 1px solid var(--gt-border);
    background: transparent;
    color: var(--gt-text);
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}

.gt-student-picker-item:last-child {
    border-bottom: 0;
}

.gt-student-picker-item:hover {
    background: rgba(139, 124, 255, 0.1);
}

.gt-student-picker-text {
    display: flex;
    flex-direction: column;
    gap: .1rem;
    min-width: 0;
}

.gt-student-picker-text small {
    color: var(--gt-muted);
    font-size: .75rem;
    font-weight: 500;
}

.gt-student-picker-empty {
    margin: 0;
    padding: .85rem;
    color: var(--gt-muted);
    font-size: .82rem;
}

.gt-month-strip {
    margin-bottom: 1rem;
}

.gt-month-strip-scroll {
    display: flex;
    gap: .4rem;
    overflow-x: auto;
    padding-bottom: .25rem;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
}

.gt-month-day {
    flex: 0 0 auto;
    min-width: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .15rem;
    padding: .45rem .35rem;
    border-radius: .75rem;
    border: 1px solid var(--gt-border);
    background: var(--gt-card);
    color: var(--gt-text);
    text-decoration: none;
    position: relative;
    scroll-snap-align: start;
}

.gt-month-day.is-selected {
    border-color: var(--gt-accent);
    background: var(--gt-accent-dim);
}

.gt-month-day.is-today .gt-month-day-num {
    color: var(--gt-accent);
}

.gt-month-day-week {
    font-size: .62rem;
    text-transform: uppercase;
    color: var(--gt-muted);
    font-weight: 700;
}

.gt-month-day-num {
    font-size: .95rem;
    font-weight: 800;
}

.gt-month-day-dot {
    width: .35rem;
    height: .35rem;
    border-radius: 999px;
    background: var(--gt-accent);
}

.gt-day-timeline {
    display: grid;
    gap: .65rem;
}

.gt-day-slot {
    display: grid;
    grid-template-columns: 4.5rem 1fr;
    gap: .75rem;
    border: 1px solid var(--gt-border);
    border-radius: var(--gt-radius);
    background: var(--gt-card);
    padding: .85rem;
}

.gt-day-slot-time {
    font-weight: 800;
    font-size: .88rem;
    line-height: 1.25;
    color: var(--gt-accent);
}

.gt-day-lessons {
    display: grid;
    gap: .5rem;
    margin-top: .65rem;
}

.gt-day-lesson {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .55rem .65rem;
    border-radius: .75rem;
    background: rgba(93, 255, 154, 0.08);
    border: 1px solid rgba(93, 255, 154, 0.18);
}

.gt-day-lesson-actions {
    flex-direction: column;
    align-items: stretch;
    gap: .55rem;
}

.gt-day-lesson-main {
    display: flex;
    align-items: center;
    gap: .65rem;
    width: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    color: inherit;
    text-align: left;
    cursor: pointer;
}

.gt-day-quick-rate {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .45rem;
    padding-top: .15rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.gt-day-stars {
    margin: 0;
    flex: 1;
}

.gt-day-confirm-btn {
    width: auto;
    padding: .45rem .75rem;
    font-size: .78rem;
}

.gt-day-cancel-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .45rem;
}

.gt-day-cancel-reason {
    flex: 1;
    min-width: 8rem;
    padding: .4rem .55rem;
    font-size: .78rem;
}

.gt-day-cancel-btn {
    font-size: .78rem;
    color: #e74c3c;
}

.gt-day-lesson.is-done {
    border-color: rgba(93, 255, 154, 0.35);
    background: rgba(93, 255, 154, 0.12);
}

.gt-day-lesson.is-cancelled {
    opacity: .7;
    border-style: dashed;
}

.gt-day-done-rating {
    padding-top: .15rem;
}

.gt-day-lesson-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: .1rem;
}

.gt-day-lesson-info small {
    color: var(--gt-muted);
    font-size: .75rem;
}

html[data-theme="light"] .gt-student-picker-list {
    background: #FFFFFF;
}

html[data-theme="light"] .gt-day-lesson {
    background: #F0FAF4;
    border-color: #8FD4A8;
}

html[data-theme="light"] .gt-day-quick-rate {
    border-top-color: rgba(0, 0, 0, 0.08);
}

.gt-day-slot-link {
    text-decoration: none;
    color: var(--gt-accent);
}

.gt-day-slot-blocked {
    opacity: .72;
    border-style: dashed;
}

.gt-day-slot-blocked .gt-day-slot-time {
    color: var(--gt-muted, #888);
}

.gt-day-enter-btn {
    margin-top: .75rem;
    padding: .75rem 1rem;
    font-size: .88rem;
    width: 100%;
}

.gt-presence-list {
    display: grid;
    gap: .65rem;
}

.gt-presence-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .75rem;
    border-radius: var(--gt-radius-sm);
    border: 1px solid var(--gt-border);
    background: rgba(93, 255, 154, 0.06);
}

.gt-presence-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: .15rem;
}

.gt-presence-info small {
    color: var(--gt-muted);
    font-size: .78rem;
}

.gt-presence-actions {
    display: flex;
    align-items: center;
    gap: .4rem;
    flex-shrink: 0;
}

.gt-presence-btn {
    width: auto;
    padding: .55rem .85rem;
    font-size: .82rem;
    white-space: nowrap;
}

.gt-quick-students-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(4.5rem, 1fr));
    gap: .5rem;
}

.gt-quick-student {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .35rem;
    width: 100%;
    padding: .55rem .35rem;
    border: 1px solid var(--gt-border);
    border-radius: .85rem;
    background: var(--gt-card);
    color: var(--gt-text);
    cursor: pointer;
    font-family: inherit;
    font-size: .72rem;
    font-weight: 700;
    text-align: center;
    line-height: 1.2;
}

.gt-quick-student:hover {
    border-color: var(--gt-accent);
    background: var(--gt-accent-dim);
}

html[data-theme="light"] .gt-presence-row {
    background: #F0FAF4;
}

html[data-theme="light"] .gt-quick-student {
    background: #FFFFFF;
}

/* Hub, sheet, estrelas */
.gt-hub-group {
    margin-bottom: 1.25rem;
}

.gt-hub-label {
    margin: 0 0 .5rem;
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--gt-muted);
    font-weight: 700;
}

.gt-hub-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .95rem 1rem;
    border: 1px solid var(--gt-border);
    border-bottom: 0;
    background: var(--gt-card);
    color: var(--gt-text);
    text-decoration: none;
    font-weight: 600;
}

.gt-hub-item:first-of-type {
    border-radius: var(--gt-radius-sm) var(--gt-radius-sm) 0 0;
}

.gt-hub-item:last-of-type {
    border-bottom: 1px solid var(--gt-border);
    border-radius: 0 0 var(--gt-radius-sm) var(--gt-radius-sm);
}

.gt-hub-item:only-of-type {
    border-radius: var(--gt-radius-sm);
}

.gt-hub-chevron {
    color: var(--gt-muted);
}

.gt-sheet {
    width: min(100%, 30rem);
    max-width: 100vw;
    margin: auto auto 0;
    padding: 0;
    border: 0;
    border-radius: 1.25rem 1.25rem 0 0;
    background: var(--gt-card-solid);
    color: var(--gt-text);
    box-shadow: var(--gt-shadow);
}

.gt-sheet::backdrop {
    background: rgba(0, 0, 0, 0.55);
}

.gt-sheet-head,
.gt-sheet-body,
.gt-sheet-foot {
    padding: 1rem 1.15rem;
}

.gt-sheet-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    border-bottom: 1px solid var(--gt-border);
}

.gt-sheet-title {
    margin: .15rem 0 0;
    font-size: 1.15rem;
}

.gt-sheet-close {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--gt-muted);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
}

.gt-sheet-foot {
    display: grid;
    gap: .5rem;
    border-top: 1px solid var(--gt-border);
}

.gt-star-input-row {
    display: flex;
    gap: .25rem;
}

.gt-star-btn {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--gt-muted);
    font-size: 1.85rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 .1rem;
}

.gt-star-btn.is-on {
    color: #FFD166;
}

.gt-stars-display span {
    color: var(--gt-muted);
}

.gt-stars-display span.is-on {
    color: #FFD166;
}

.gt-presence-actions-stack {
    flex-direction: column;
    align-items: flex-end;
    gap: .25rem;
}

.gt-link-btn {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--gt-muted);
    cursor: pointer;
    font-family: inherit;
    text-decoration: underline;
    padding: 0;
}

.gt-feedback-list {
    display: grid;
    gap: .65rem;
}

.gt-feedback-item {
    padding: .85rem;
    border-radius: var(--gt-radius-sm);
    border: 1px solid var(--gt-border);
    background: rgba(255, 209, 102, 0.06);
}

.gt-feedback-thumb {
    width: 3rem;
    height: 3rem;
    border-radius: .65rem;
    object-fit: cover;
    flex-shrink: 0;
}

.gt-media-trigger {
    position: relative;
    display: inline-flex;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    overflow: hidden;
    vertical-align: top;
}

.gt-media-trigger img,
.gt-media-trigger .gt-media-trigger-preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gt-media-trigger.gt-feedback-photo {
    width: 100%;
    max-height: none;
    aspect-ratio: 4 / 5;
    border-radius: .85rem;
    border: 1px solid var(--gt-border);
}

.gt-media-trigger.gt-feedback-photo img,
.gt-media-trigger.gt-feedback-photo .gt-media-trigger-preview {
    max-height: none;
}

.gt-media-play-badge {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: #fff;
    background: rgba(0, 0, 0, 0.35);
    pointer-events: none;
}

.gt-media-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
}

.gt-media-lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
}

.gt-media-lightbox-stage {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3.5rem 1rem 4.5rem;
}

.gt-media-lightbox-content {
    width: min(100%, 520px);
    max-height: calc(100vh - 8rem);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gt-media-lightbox-image,
.gt-media-lightbox-video {
    width: 100%;
    max-height: calc(100vh - 8rem);
    object-fit: contain;
    border-radius: .35rem;
    background: #000;
}

.gt-media-lightbox-close {
    position: absolute;
    top: max(.75rem, env(safe-area-inset-top));
    right: .75rem;
    z-index: 2;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
}

.gt-media-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
}

.gt-media-lightbox-prev { left: .5rem; }
.gt-media-lightbox-next { right: .5rem; }

.gt-media-lightbox-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: max(.75rem, env(safe-area-inset-bottom));
    margin: 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.85);
    font-size: .85rem;
}

body.gt-media-open {
    overflow: hidden;
}

textarea.gt-input {
    min-height: 5rem;
    resize: vertical;
}

.gt-input-error {
    border-color: #e74c3c !important;
}

.gt-field-error {
    margin: .35rem 0 0;
    font-size: .78rem;
    color: #e74c3c;
}

/* —— Lista de atletas —— */
.gt-student-list {
    display: grid;
    gap: .65rem;
}

.gt-student-card {
    border-radius: var(--gt-radius);
    border: 1px solid var(--gt-border);
    background: var(--gt-card);
    overflow: hidden;
}

.gt-student-card-main {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .85rem .85rem .65rem;
    text-decoration: none;
    color: inherit;
}

.gt-student-card-text {
    min-width: 0;
    flex: 1;
}

.gt-student-card-text strong {
    display: block;
    font-size: .95rem;
    margin-bottom: .15rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gt-student-card-meta {
    display: block;
    color: var(--gt-muted);
    font-size: .78rem;
    line-height: 1.35;
}

.gt-student-pending {
    color: #FFB4B4;
    font-style: normal;
    font-weight: 600;
}

.gt-student-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: .35rem;
    padding: 0 .65rem .65rem;
    border-top: 1px solid var(--gt-border);
    margin-top: .15rem;
    padding-top: .55rem;
}

.gt-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 1;
    max-height: 2.65rem;
    border-radius: .65rem;
    border: 1px solid var(--gt-border);
    background: rgba(255, 255, 255, .04);
    color: var(--gt-muted);
    text-decoration: none;
    transition: background .15s, color .15s, border-color .15s;
}

.gt-icon-btn svg {
    width: 1.15rem;
    height: 1.15rem;
}

.gt-icon-dollar {
    font-size: 1.2rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -.02em;
}

.gt-icon-btn:hover,
.gt-icon-btn:focus-visible {
    background: rgba(255, 255, 255, .08);
    color: var(--gt-text);
}

.gt-icon-btn-accent {
    border-color: rgba(93, 255, 154, .35);
    background: var(--gt-accent-dim);
    color: #C9FFE0;
}

/* —— Ficha do atleta (abas) —— */
.gt-student-header {
    display: flex;
    gap: .85rem;
    align-items: center;
    margin-bottom: 1rem;
}

.gt-student-header-info {
    min-width: 0;
}

.gt-student-tabs {
    display: flex;
    gap: .35rem;
    overflow-x: auto;
    margin-bottom: 1rem;
    padding-bottom: .15rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.gt-student-tabs::-webkit-scrollbar {
    display: none;
}

.gt-student-tab {
    flex-shrink: 0;
    padding: .5rem .85rem;
    border-radius: 999px;
    border: 1px solid var(--gt-border);
    background: rgba(255, 255, 255, .04);
    color: var(--gt-muted);
    font-size: .82rem;
    font-weight: 600;
    text-decoration: none;
    transition: background .15s, color .15s, border-color .15s;
}

.gt-student-tab.is-active {
    background: var(--gt-accent-dim);
    border-color: rgba(93, 255, 154, .35);
    color: #C9FFE0;
}

.gt-student-tab-panel {
    padding-bottom: .5rem;
}

.gt-student-quick-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .55rem;
    margin-bottom: .25rem;
}

.gt-student-quick-card {
    display: block;
    padding: .75rem .85rem;
    border-radius: .75rem;
    border: 1px solid var(--gt-border);
    background: var(--gt-card);
    text-decoration: none;
    color: inherit;
}

.gt-student-quick-card strong {
    display: block;
    margin-top: .2rem;
    font-size: .9rem;
}

html[data-theme="light"] .gt-icon-btn {
    background: #F0F1F6;
}

html[data-theme="light"] .gt-icon-btn-accent {
    background: #E6FBEF;
    color: #0A5C32;
}

html[data-theme="light"] .gt-student-tab {
    background: #F0F1F6;
}

html[data-theme="light"] .gt-student-tab.is-active {
    background: #E6FBEF;
    color: #0A5C32;
}

html[data-theme="light"] .gt-student-pending {
    color: #C62828;
}

/* —— Painel do atleta —— */
.gt-athlete-hero {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.25rem;
}

.gt-athlete-hero-text {
    min-width: 0;
}

.gt-avatar-upload-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .45rem;
}

.gt-avatar-upload-form {
    margin: 0;
}

.gt-avatar-upload-label {
    position: relative;
    display: inline-flex;
    cursor: pointer;
}

.gt-avatar-upload-badge {
    position: absolute;
    right: -.1rem;
    bottom: -.1rem;
    width: 1.65rem;
    height: 1.65rem;
    border-radius: 999px;
    background: var(--gt-accent);
    color: #06140C;
    font-size: .75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--gt-bg);
}

.gt-avatar-upload-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
}

.gt-avatar-upload-hint {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
}

.gt-level-card {
    padding: 1rem;
}

.gt-level-bar {
    height: .55rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, .08);
    overflow: hidden;
}

.gt-level-bar > span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--gt-accent), #7CFF57);
    transition: width .4s ease;
}

.gt-level-up {
    color: var(--gt-accent);
    font-weight: 700;
    font-size: .82rem;
}

.gt-athlete-plan {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: .75rem;
}

html[data-theme="light"] .gt-level-bar {
    background: #E8E9EF;
}

.gt-lessons-balance {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: .75rem;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: var(--gt-radius);
    border: 1px solid rgba(93, 255, 154, .25);
    background: var(--gt-accent-dim);
}

.gt-lessons-balance-num {
    display: block;
    font-size: 2rem;
    line-height: 1;
    margin-top: .15rem;
}

.gt-modality-pill {
    display: inline-flex;
    align-items: center;
    gap: .2rem;
    font-size: .82rem;
}

.gt-timeline-item {
    display: grid;
    grid-template-columns: .85rem 1fr;
    gap: .75rem;
    padding-bottom: 1rem;
    position: relative;
}

.gt-timeline-item:not(:last-child)::before {
    content: '';
    position: absolute;
    left: .4rem;
    top: 1rem;
    bottom: 0;
    width: 2px;
    background: var(--gt-border);
}

.gt-timeline-dot {
    width: .85rem;
    height: .85rem;
    border-radius: 999px;
    background: var(--gt-accent);
    margin-top: .25rem;
    box-shadow: 0 0 0 3px var(--gt-accent-dim);
}

.gt-timeline-payment .gt-timeline-dot {
    background: var(--gt-violet, #8B7CFF);
    box-shadow: 0 0 0 3px rgba(139, 124, 255, .2);
}

.gt-lesson-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: .75rem;
    padding: .85rem 0;
    border-bottom: 1px solid var(--gt-border);
    text-decoration: none;
    color: inherit;
}

.gt-lesson-row:last-child {
    border-bottom: 0;
}

.gt-lesson-row-action {
    flex-shrink: 0;
    font-size: .82rem;
    font-weight: 700;
    color: var(--gt-accent);
}

.gt-feedback-photo {
    width: 100%;
    max-height: 14rem;
    object-fit: cover;
    border-radius: .75rem;
    border: 1px solid var(--gt-border);
}

.gt-media-row {
    display: flex;
    gap: .45rem;
    margin-top: .45rem;
    flex-wrap: wrap;
}

.gt-logout-btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    width: auto;
    padding: .65rem 1rem;
    color: #FFB4B4;
    border-color: rgba(255, 100, 100, .25);
}

.gt-finance-split {
    padding: .65rem .75rem;
    border-radius: .65rem;
    background: rgba(0, 0, 0, .12);
}

.gt-finance-split strong {
    display: block;
    margin-top: .15rem;
    font-size: 1.05rem;
}

html[data-theme="light"] .gt-bottom-nav {
    background: rgba(255, 255, 255, 0.92);
}

html[data-theme="light"] .gt-hub-item {
    background: #FFFFFF;
}

html[data-theme="light"] .gt-sheet {
    background: #FFFFFF;
}