:root {
    /* Cores */
    --bg-color: #F9FAF9;
    --panel-bg: rgba(255, 255, 255, 0.85);
    --panel-border: rgba(0, 0, 0, 0.08);
    --primary-color: #16A34A;
    --primary-hover: #4E8F75;
    --color-secondary: #6BAF92;
    --color-accent: #4E8F75;
    --text-main: #2E2E2E;
    --text-muted: #5F6878;
    --safe-color: #66BB6A;
    --warning-color: #f59e0b;
    --danger-color: #DC2626;
    --color-success: #66BB6A;

    /* Tipografia */
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-size-base: 16px;

    /* Forma e espaço */
    --border-radius: 14px;
    --shadow-default: 0px 4px 12px rgba(0, 0, 0, 0.05);
    --spacing: 8px;
}

:root.dark-mode {
    --bg-color: #111827;
    --panel-bg: rgba(31, 41, 55, 0.85);
    --panel-border: rgba(255, 255, 255, 0.08);
    --primary-color: #22C55E;
    --primary-hover: #16A34A;
    --text-main: #F9FAFB;
    --text-muted: #9CA3AF;
    --shadow-default: 0px 4px 12px rgba(0, 0, 0, 0.3);
}

.sidebar-theme {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--panel-border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    background: transparent;
    border-bottom: none;
    border-left: none;
    border-right: none;
    width: 100%;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    text-align: left;
    transition: background 0.15s, color 0.15s;
}
.sidebar-theme:hover {
    background: rgba(0,0,0,0.02);
    color: var(--text-main);
}
:root.dark-mode .sidebar-theme:hover {
    background: rgba(255,255,255,0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    font-size: var(--font-size-base);
    line-height: 1.6;
    letter-spacing: 0.02em;
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    background-image: radial-gradient(circle at top right, rgba(107, 175, 146, 0.08), transparent 40%),
                      radial-gradient(circle at bottom left, rgba(22, 163, 74, 0.05), transparent 40%);
    background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    letter-spacing: -0.01em;
}

/* Navegação Global */
.navbar {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--panel-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--panel-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-main);
}

/* Home / Hero */
.hero-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: calc(100vh - 80px);
    padding: 2rem;
    max-width: 1100px;
    margin: 0 auto;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--primary-color), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 90%;
    height: auto;
    animation: float 6s ease-in-out infinite;
    border-radius: 30px;
    box-shadow: var(--shadow-default);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

@media (prefers-reduced-motion: reduce) {
    .hero-image img { animation: none; }
    .bomb-icon { animation: none; }
}

@media (max-width: 768px) {
    .hero-section {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
        justify-content: center;
        margin-top: 2rem;
    }
    .hero-title { font-size: 3rem; }
}

/* App Tracker Elements */
.app-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem 2rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.header {
    text-align: center;
}

.header p {
    color: var(--text-muted);
}

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--panel-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-default);
}

.add-subject-section h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

#add-subject-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-row {
    display: flex;
    gap: 1rem;
}

.input-row .input-group {
    flex: 1;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.input-group input {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    min-height: 44px;
    width: 100%;
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.5;
    letter-spacing: 0.01em;
    transition: all 0.2s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.2);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    min-height: 44px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    margin-top: 0.5rem;
    text-align: center;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-primary:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 3px;
}

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

.subject-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform 0.2s ease;
}

.subject-card:hover {
    transform: translateY(-4px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.card-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.delete-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    transition: color 0.2s;
}

.delete-btn:hover {
    color: var(--danger-color);
}

.stats {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stats .absences-count {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1;
}

.progress-container {
    height: 8px;
    background: rgba(0, 0, 0, 0.06);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease, background-color 0.3s ease;
}

.controls {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}

.btn-control {
    flex: 1;
    background: rgba(0, 0, 0, 0.04);
    border: 1px solid var(--panel-border);
    color: var(--text-main);
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 1.25rem;
    line-height: 1;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-control:hover {
    background: rgba(0, 0, 0, 0.08);
}

.btn-control:active {
    transform: scale(0.95);
}

@media (max-width: 600px) {
    .input-row {
        flex-direction: column;
    }
}

/* Animação da bombinha de falta estourada */
@keyframes bombPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.3) rotate(15deg); }
    100% { transform: scale(1); }
}

.bomb-icon {
    display: inline-block;
    animation: bombPulse 1s ease-in-out infinite;
    margin-left: 8px;
    font-size: 1.5rem;
    vertical-align: middle;
}

/* User Account Icon Pill */
.nav-user-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(22, 163, 74, 0.1);
    padding: 0.4rem 1rem !important;
    border-radius: 20px;
    border: 1px solid rgba(22, 163, 74, 0.3);
    color: var(--primary-color) !important;
    transition: all 0.2s ease;
}

.nav-user-btn:hover {
    background: rgba(22, 163, 74, 0.2);
    transform: translateY(-2px);
}

/* =========================================
   KANBAN & CALENDÁRIO (ORGANIZADOR)
========================================= */
.organizador-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.organizador-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.organizador-grid {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 900px) {
    .organizador-grid {
        grid-template-columns: 1fr;
    }
}

/* Calendário */
.calendario-section {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-default);
    color: var(--text-main);
}

.calendario-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.calendario-header button {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

.calendario-days-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.calendario-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.cal-day {
    aspect-ratio: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    font-size: 0.9rem;
    cursor: pointer;
    transition: 0.2s;
    position: relative;
}

.cal-day:hover:not(.empty) {
    background: rgba(22, 163, 74, 0.1);
}

.cal-day.today {
    background: var(--primary-color);
    color: white;
    font-weight: bold;
}

.cal-day.has-task::after {
    content: '';
    position: absolute;
    bottom: 2px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--danger-color);
}

/* Kanban */
.kanban-section {
    flex: 1;
}

.kanban-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 1100px) {
    .kanban-board {
        grid-template-columns: 1fr;
    }
}

.kanban-column {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    min-height: 500px;
}

.kanban-title {
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid transparent;
}

.kanban-title.todo  { border-color: #f59e0b; color: #d97706; }
.kanban-title.doing { border-color: #3b82f6; color: #2563eb; }
.kanban-title.done  { border-color: var(--primary-color); color: var(--color-accent); }

.kanban-cards {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.kanban-card {
    background: var(--panel-bg);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--panel-border);
    cursor: grab;
    border-left: 4px solid var(--primary-color);
    transition: transform 0.2s;
}

.kanban-card:active {
    cursor: grabbing;
}

.kanban-card.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.kanban-card h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
}

.kanban-card .tag {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(22, 163, 74, 0.1);
    color: var(--primary-color);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.kanban-card .deadline {
    font-size: 0.8rem;
    color: var(--danger-color);
    display: flex;
    align-items: center;
    gap: 4px;
}
.kanban-card .deadline.ok {
    color: var(--text-muted);
}

.kanban-card-delete {
    float: right;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
}
.kanban-card-delete:hover {
    color: var(--danger-color);
}

/* Warnings */
.urgency-banner {
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid var(--warning-color);
    padding: 1rem;
    border-radius: 8px;
    color: var(--warning-color);
    font-weight: 600;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.modal-content {
    background: var(--bg-color);
    border: 1px solid var(--panel-border);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 550px;
    box-shadow: var(--shadow-default);
}
.close-btn {
    float: right;
    font-size: 1.5rem;
    cursor: pointer;
}


/* =========================================
   MOBILE RESPONSIVENESS
========================================= */
.hamburger-btn {
    display: none;
    font-size: 1.8rem;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 0.2rem;
}

@media (max-width: 800px) {
    .hamburger-btn {
        display: block;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(249, 250, 249, 0.98);
        backdrop-filter: blur(10px);
        padding: 1.5rem;
        gap: 1.2rem;
        border-bottom: 1px solid var(--panel-border);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    }
    .nav-links.active {
        display: flex;
    }
    .nav-user-btn {
        justify-content: center;
        margin-top: 1rem;
    }
    .dashboard-grid {
        grid-template-columns: 1fr !important;
    }
    .organizador-grid {
        grid-template-columns: 1fr !important;
    }
    .calendario-section {
        overflow-x: auto;
    }
    .modal-content {
        width: 95% !important;
        padding: 1.5rem !important;
    }
    .app-container {
        padding: 0 0.5rem 1rem 0.5rem !important;
    }
    .hero-title {
        font-size: 2.5rem !important;
    }
    .hero-section {
        gap: 2rem !important;
        padding: 1rem !important;
    }
}

/* =========================================
   AUTOCOMPLETE DROPDOWN
========================================= */
.autocomplete-wrapper {
    position: relative;
    width: 100%;
}

.autocomplete-list {
    position: absolute;
    top: calc(100% + 5px);
    left: 0;
    width: 100%;
    max-height: 200px;
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    z-index: 1000;
    display: none;
    flex-direction: column;
    padding: 0.5rem 0;
}

.autocomplete-list.active {
    display: flex;
}

.autocomplete-item {
    padding: 0.6rem 1rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-main);
    transition: background 0.15s, color 0.15s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.autocomplete-item:hover, .autocomplete-item.selected {
    background: rgba(22, 163, 74, 0.08);
    color: var(--primary-color);
    font-weight: 500;
}

.autocomplete-item-icon {
    opacity: 0.6;
    font-size: 1.1em;
}

.autocomplete-item:hover .autocomplete-item-icon {
    opacity: 1;
}

.autocomplete-empty {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    cursor: default;
}