/* ===== VARIÁVEIS - TEMA NEO-BRUTALISTA ===== */
:root {
    --bg-dark: #1a1a1a;
    --bg-darker: #0d0d0d;
    --card-dark: #2a2a2a;
    --accent-red: #ef4444;
    --accent-red-dark: #dc2626;
    --gray-light: #e5e5e5;
    --gray-mid: #737373;
    --gray-dark: #404040;
    --text: #f5f5f9;
    --border: 4px;
    --border-radius: 6px;
    --shadow: 6px 6px 0px rgba(0, 0, 0, 0.8);
}

/* TEMA CLARO */
[data-theme="light"] {
    --bg-dark: #f5f5f5;
    --bg-darker: #ffffff;
    --card-dark: #ffffff;
    --accent-red: #ef4444;
    --accent-red-dark: #dc2626;
    --gray-light: #1a1a1a;
    --gray-mid: #737373;
    --gray-dark: #e5e5e5;
    --text: #1a1a1a;
    --shadow: 6px 6px 0px rgba(0, 0, 0, 0.15);
}

/* ===== RESET & BASE ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-dark);
    color: var(--text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ===== TELA DE LOGIN ===== */
#lock-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-darker);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
}

.login-card {
    background: var(--card-dark);
    padding: 3rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    width: 90%;
    max-width: 400px;
}

.login-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-red);
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.login-icon i {
    font-size: 2.5rem;
    color: var(--text);
}

.login-card h2 {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 2rem;
    letter-spacing: 2px;
}

#pass-input {
    width: 100%;
    padding: 15px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--bg-darker);
    color: var(--text);
    font-size: 1.1rem;
    text-align: center;
    outline: none;
    margin-bottom: 1.5rem;
    font-weight: bold;
}

#pass-input:focus {
    background: var(--card-dark);
}

.btn-login {
    width: 100%;
    padding: 15px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--accent-red);
    color: var(--text);
    font-weight: 900;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.1s;
    box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.8);
    letter-spacing: 1px;
}

.btn-login:hover {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.btn-login:active {
    transform: translate(4px, 4px);
    box-shadow: none;
}

.error-msg {
    color: var(--accent-red);
    margin-top: 15px;
    font-size: 0.9rem;
    display: none;
    font-weight: bold;
}

.sync-status {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--bg-darker);
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.sync-status i {
    font-size: 0.7rem;
}

.sync-status i.connected {
    color: #22c55e;
}

.sync-status i.syncing {
    color: #eab308;
    animation: spin 1s linear infinite;
}

.sync-status i.error {
    color: var(--accent-red);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.sync-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sync-status-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.8rem;
    background: var(--bg-darker);
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
}

#sync-icon {
    transition: transform 0.3s;
}

#sync-icon.syncing {
    animation: spin 1s linear infinite;
}

/* ===== SELETOR DE TEMA ===== */
.theme-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    padding: 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--bg-darker);
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
}

.theme-option i:first-child {
    font-size: 2.5rem;
    color: var(--gray-mid);
}

.theme-option span {
    font-weight: 900;
    font-size: 1.1rem;
}

.theme-option .theme-check {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.2rem;
    color: var(--accent-red);
    opacity: 0;
    transition: opacity 0.2s;
}

.theme-option.active {
    background: var(--accent-red);
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px rgba(0, 0, 0, 0.8);
}

.theme-option.active i:first-child {
    color: var(--text);
}

.theme-option.active .theme-check {
    opacity: 1;
}

.theme-option:hover:not(.active) {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.theme-option:hover:not(.active) i:first-child {
    color: var(--accent-red);
}

[data-theme="light"] .theme-option[data-theme="light"]:not(.active) {
    background: var(--card-dark);
}

[data-theme="dark"] .theme-option[data-theme="dark"]:not(.active) {
    background: var(--card-dark);
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: 70px;
    background: var(--bg-darker);
    height: 100vh;
    position: fixed;
    display: none;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    z-index: 100;
    border-right: var(--border) solid var(--accent-red);
}

.sidebar-top,
.sidebar-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.sidebar i {
    font-size: 1.5rem;
    cursor: pointer;
    transition: 0.2s;
    color: var(--gray-mid);
    padding: 10px;
    border-radius: var(--border-radius);
}

.sidebar i:hover {
    color: var(--accent-red);
    transform: scale(1.15);
}

.sidebar i.active {
    color: var(--accent-red);
    background: var(--card-dark);
    border: 3px solid var(--accent-red);
}

/* ===== MAIN CONTENT ===== */
main {
    margin-left: 70px;
    padding: 2rem;
    width: 100%;
    max-width: 1200px;
    display: none;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 2rem;
    letter-spacing: 1px;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* ===== SUBJECTS GRID ===== */
.weekly-widget {
    background: var(--card-dark);
    padding: 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.weekly-widget-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.weekly-widget-header h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0;
}

.btn-widget-goto {
    padding: 10px 20px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--accent-red);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.1s;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-widget-goto:hover {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.weekly-widget-stats {
    display: flex;
    justify-content: space-around;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.widget-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.widget-label {
    font-size: 0.85rem;
    color: var(--gray-mid);
    font-weight: 700;
}

.widget-value {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--accent-red);
}

.weekly-widget-progress {
    height: 20px;
    background: var(--bg-darker);
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.weekly-widget-fill {
    height: 100%;
    background: var(--accent-red);
    transition: width 0.5s ease;
}

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.subject-card {
    background: var(--card-dark);
    padding: 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.2s;
}

.subject-card:hover {
    transform: translate(-2px, -2px);
}

.subject-card h3 {
    font-size: 1.3rem;
    font-weight: 900;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.progress-bar-bg {
    height: 12px;
    background: var(--bg-darker);
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
    margin: 15px 0;
    overflow: hidden;
}

.progress-bar-fill {
    background: var(--accent-red);
    height: 100%;
    transition: width 0.3s;
}

.subject-card .card-actions {
    display: flex;
    gap: 10px;
    margin-top: 1rem;
}

.subject-card button {
    flex: 1;
    padding: 10px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.1s;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
}

.subject-card button:hover {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.subject-card button:active {
    transform: translate(3px, 3px);
    box-shadow: none;
}

.subject-card button:first-child {
    background: var(--accent-red);
    color: var(--text);
}

.subject-card button:last-child {
    background: var(--gray-dark);
    color: var(--text);
}

/* ===== META SEMANAL ===== */
.weekly-header {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.week-info {
    background: var(--card-dark);
    padding: 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.week-info h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.week-range {
    color: var(--gray-mid);
    font-size: 1.1rem;
}

.weekly-progress-card {
    background: var(--card-dark);
    padding: 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.weekly-stats {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin-bottom: 1.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-mid);
    font-weight: 700;
    text-transform: uppercase;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--accent-red);
}

.stat-divider {
    width: 3px;
    height: 50px;
    background: var(--text);
}

.weekly-progress-bar {
    height: 30px;
    background: var(--bg-darker);
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.weekly-progress-fill {
    height: 100%;
    background: var(--accent-red);
    transition: width 0.5s ease;
}

.timer-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn-start-study,
.btn-stop-study {
    padding: 1.2rem 2rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    font-weight: 900;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.1s;
    box-shadow: var(--shadow);
}

.btn-start-study {
    background: var(--accent-red);
    color: var(--text);
}

.btn-stop-study {
    background: var(--gray-dark);
    color: var(--text);
}

.btn-start-study:hover,
.btn-stop-study:hover {
    transform: translate(2px, 2px);
    box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.8);
}

.btn-start-study:active,
.btn-stop-study:active {
    transform: translate(6px, 6px);
    box-shadow: none;
}

.session-timer {
    background: var(--bg-darker);
    padding: 1rem 2rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    font-size: 1.5rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: monospace;
}

.recording-dot {
    color: var(--accent-red);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.manual-controls {
    background: var(--card-dark);
    padding: 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.manual-controls h3 {
    font-size: 1.3rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.manual-input-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.manual-input-group input {
    flex: 1;
    min-width: 120px;
    padding: 12px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--bg-darker);
    color: var(--text);
    font-weight: bold;
    font-size: 1rem;
}

.btn-add-time,
.btn-subtract-time {
    padding: 12px 20px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.1s;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-add-time {
    background: var(--accent-red);
    color: var(--text);
}

.btn-subtract-time {
    background: var(--gray-dark);
    color: var(--text);
}

.btn-add-time:hover,
.btn-subtract-time:hover {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.weekly-history {
    background: var(--card-dark);
    padding: 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.weekly-history h3 {
    font-size: 1.3rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.sessions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.session-item {
    background: var(--bg-darker);
    padding: 1rem;
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.session-item .session-date {
    font-weight: 700;
    color: var(--gray-mid);
}

.session-item .session-duration {
    font-weight: 900;
    font-size: 1.2rem;
    color: var(--accent-red);
}

/* ===== CALENDÁRIO ===== */
.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.month-selector {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--card-dark);
    padding: 0.8rem 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.current-month-display {
    font-size: 1.5rem;
    font-weight: 900;
    min-width: 200px;
    text-align: center;
    text-transform: uppercase;
}

.btn-month-nav {
    width: 45px;
    height: 45px;
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--accent-red);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.1s;
    font-size: 1.2rem;
}

.btn-month-nav:hover {
    transform: scale(1.1);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    margin-bottom: 10px;
}

.weekday {
    background: var(--card-dark);
    padding: 1rem;
    text-align: center;
    font-weight: 900;
    font-size: 0.85rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    color: var(--gray-mid);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
}

.day-card {
    background: var(--card-dark);
    padding: 1rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.8);
    min-height: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: transform 0.2s;
}

.day-card:hover:not(.inactive-day) {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px rgba(0, 0, 0, 0.8);
}

.day-card.inactive-day {
    background: var(--bg-darker);
    opacity: 0.4;
    cursor: default;
    border-color: var(--gray-dark);
}

.day-card.rest-day {
    background: var(--gray-dark);
    border-color: var(--gray-mid);
}

.day-card.rest-day .day-number {
    color: var(--gray-mid);
}

.day-card.today {
    border-color: var(--accent-red);
    background: linear-gradient(135deg, var(--card-dark) 0%, var(--bg-darker) 100%);
}

.day-number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.day-card.today .day-number {
    color: var(--accent-red);
}

.day-progress-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-darker);
    border: 2px solid var(--accent-red);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-top: 0.5rem;
}

.day-progress-fill {
    height: 100%;
    background: var(--accent-red);
    transition: width 0.3s;
}

.day-has-event {
    position: absolute;
    top: 8px;
    right: 8px;
    color: #fbbf24;
    font-size: 1.2rem;
    filter: drop-shadow(0 0 3px rgba(0, 0, 0, 0.5));
}

/* ===== MODAIS ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-dark);
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: 10px 10px 0px rgba(0, 0, 0, 0.9);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content-small {
    max-width: 500px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: var(--border) solid var(--accent-red);
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0;
}

.btn-close-modal {
    width: 40px;
    height: 40px;
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--accent-red);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: transform 0.1s;
}

.btn-close-modal:hover {
    transform: scale(1.1);
}

.modal-day-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem 1.5rem;
    background: var(--bg-darker);
    border-bottom: var(--border) solid var(--accent-red);
}

.modal-day-number {
    font-size: 5rem;
    font-weight: 900;
    color: var(--accent-red);
    line-height: 1;
}

.modal-day-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.modal-section {
    padding: 1.5rem;
    border-bottom: 3px solid var(--gray-dark);
}

.modal-section:last-child {
    border-bottom: none;
}

.modal-section h3 {
    font-size: 1.2rem;
    font-weight: 900;
    margin-bottom: 1rem;
    color: var(--gray-mid);
}

.modal-events-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.event-item {
    background: var(--bg-darker);
    padding: 1rem;
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.event-info h4 {
    font-size: 1.1rem;
    font-weight: 900;
    margin-bottom: 0.3rem;
}

.event-info p {
    color: var(--gray-mid);
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
}

.event-time {
    background: var(--accent-red);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 900;
    font-size: 0.9rem;
}

.btn-delete-event {
    background: transparent;
    border: 2px solid var(--accent-red);
    color: var(--accent-red);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    margin-left: 1rem;
}

.btn-delete-event:hover {
    background: var(--accent-red);
    color: var(--text);
}

.btn-add-event {
    width: 100%;
    padding: 1rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--accent-red);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: transform 0.1s;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
}

.btn-add-event:hover {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.modal-progress {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.progress-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.progress-label {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--gray-mid);
}

.progress-bar-modal {
    height: 20px;
    background: var(--bg-darker);
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.progress-fill-modal {
    height: 100%;
    background: var(--accent-red);
    transition: width 0.3s;
}

.progress-time {
    font-weight: 900;
    font-size: 0.9rem;
}

.btn-toggle-rest {
    width: 100%;
    padding: 1rem;
    border: var(--border) solid var(--gray-dark);
    border-radius: var(--border-radius);
    background: var(--gray-dark);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    transition: all 0.2s;
}

.btn-toggle-rest.active {
    background: var(--accent-red);
    border-color: var(--accent-red);
}

.event-form {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 900;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="time"],
.form-group input[type="datetime-local"],
.form-group input[type="number"] {
    width: 100%;
    padding: 0.8rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--bg-darker);
    color: var(--text);
    font-weight: 700;
    font-size: 1rem;
}

.time-inputs {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.time-inputs input {
    flex: 1;
}

.time-inputs span {
    font-weight: 700;
}

.form-actions {
    display: flex;
    gap: 0.8rem;
    justify-content: flex-end;
}

.btn-cancel {
    padding: 0.8rem 1.5rem;
    border: var(--border) solid var(--gray-dark);
    border-radius: var(--border-radius);
    background: var(--gray-dark);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.1s;
}

.btn-save-event {
    padding: 0.8rem 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--accent-red);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.1s;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
}

.btn-save-event:hover,
.btn-cancel:hover {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.btn-delete {
    padding: 0.8rem 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: transparent;
    color: var(--accent-red);
    font-weight: 900;
    cursor: pointer;
    margin-right: auto;
}

.btn-delete:hover {
    background: var(--accent-red);
    color: var(--text);
}

.no-events {
    text-align: center;
    color: var(--gray-mid);
    padding: 1.5rem;
    font-style: italic;
}

.session-item {
    cursor: pointer;
}

.session-item:hover {
    opacity: 0.8;
    transform: translateX(-2px);
}

/* ===== POMODORO ===== */
.timer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.timer-box {
    background: var(--card-dark);
    padding: 2rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.timer-label {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.timer-label.focus {
    color: var(--accent-red);
}

.timer-label.break {
    color: var(--gray-light);
}

.timer-display {
    font-size: 4rem;
    font-weight: 900;
    margin: 1.5rem 0;
    font-family: monospace;
    color: var(--text);
}

.timer-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.timer-buttons button {
    padding: 12px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.1s;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-timer-start {
    background: var(--accent-red);
    color: var(--text);
}

.btn-timer-pause {
    background: #f97316;
    color: var(--text);
}

.btn-timer-reset {
    background: var(--gray-dark);
    color: var(--text);
}

.timer-buttons button:hover {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.timer-buttons button:active {
    transform: translate(3px, 3px);
    box-shadow: none;
}

/* ===== CONFIGURAÇÕES ===== */
.settings-card {
    background: var(--card-dark);
    padding: 1.5rem;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.settings-card h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.settings-input-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.settings-input-group label {
    font-weight: 700;
    font-size: 1.1rem;
}

.settings-input-group input {
    flex: 1;
    min-width: 150px;
    padding: 12px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--bg-darker);
    color: var(--text);
    font-weight: bold;
    font-size: 1rem;
}

.btn-save,
.btn-add {
    padding: 12px 24px;
    border: var(--border) solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--accent-red);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.1s;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-save:hover,
.btn-add:hover {
    transform: translate(1px, 1px);
    box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.8);
}

.manage-list {
    list-style: none;
    padding: 0;
    margin-top: 1rem;
}

.manage-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-darker);
    margin-bottom: 10px;
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
}

.manage-list li span {
    font-weight: 700;
    font-size: 1.1rem;
}

.manage-list button {
    padding: 8px 16px;
    border: 3px solid var(--accent-red);
    border-radius: var(--border-radius);
    background: var(--accent-red);
    color: var(--text);
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.1s;
}

.manage-list button:hover {
    transform: scale(1.1);
}

/* ===== RESPONSIVO ===== */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: 60px;
        flex-direction: row;
        justify-content: space-around;
        bottom: 0;
        top: auto;
        padding: 0;
        border-right: none;
        border-top: var(--border) solid var(--accent-red);
    }

    .sidebar-top,
    .sidebar-bottom {
        flex-direction: row;
        gap: 1rem;
    }

    main {
        margin-left: 0;
        padding: 1rem;
        margin-bottom: 80px;
    }

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

    .page-title {
        font-size: 1.8rem;
    }

    .timer-display {
        font-size: 3rem;
    }

    .weekly-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat-divider {
        width: 50px;
        height: 3px;
    }

    /* CALENDÁRIO RESPONSIVO */
    .calendar-header {
        flex-direction: column;
        align-items: stretch;
    }

    .month-selector {
        width: 100%;
        justify-content: center;
    }

    .calendar-weekdays {
        gap: 5px;
    }

    .weekday {
        font-size: 0.7rem;
        padding: 0.6rem 0.3rem;
    }

    .calendar-grid {
        gap: 5px;
    }

    .day-card {
        min-height: 85px;
        padding: 0.6rem 0.4rem;
    }

    .day-number {
        font-size: 1.5rem;
    }

    .day-progress-bar {
        height: 5px;
    }

    .day-has-event {
        font-size: 1rem;
        top: 5px;
        right: 5px;
    }

    .modal-content {
        max-width: 95%;
    }

    .modal-day-number {
        font-size: 3.5rem;
    }

    .modal-day-text {
        font-size: 1.2rem;
    }

    .weekly-widget-stats {
        flex-direction: column;
        gap: 0.8rem;
    }

    .btn-widget-goto {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .day-card {
        min-height: 75px;
        padding: 0.4rem 0.3rem;
    }

    .day-number {
        font-size: 1.3rem;
        margin-bottom: 0.3rem;
    }

    .day-progress-bar {
        height: 4px;
        margin-top: 0.3rem;
    }

    .weekday {
        font-size: 0.65rem;
        padding: 0.5rem 0.2rem;
    }

    .current-month-display {
        font-size: 1.2rem;
        min-width: 140px;
    }

    .btn-month-nav {
        width: 38px;
        height: 38px;
    }

    .day-has-event {
        font-size: 0.9rem;
    }

    .modal-day-info {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .modal-section {
        padding: 1rem;
    }

    .event-item {
        flex-direction: column;
        gap: 0.8rem;
        text-align: center;
    }

    .form-actions {
        flex-direction: column;
    }

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

    .btn-delete {
        margin-right: 0;
    }
}

@media (max-width: 360px) {
    .day-card {
        min-height: 65px;
        padding: 0.3rem 0.2rem;
    }

    .day-number {
        font-size: 1.1rem;
    }

    .calendar-grid {
        gap: 3px;
    }

    .weekday {
        font-size: 0.6rem;
        padding: 0.4rem 0.1rem;
    }

    .day-has-event {
        font-size: 0.8rem;
        top: 3px;
        right: 3px;
    }
}