/**
 * Planejador de Estudos
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 * Todos os direitos reservados
 */

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

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Educational Indigo Palette */
    --primary-color: #4F46E5;
    --primary-dark: #3730A3;
    --primary-light: #818CF8;
    --primary-subtle: #EEF2FF;
    --secondary-color: #0F172A;
    --accent-color: #F59E0B;
    --accent-light: #FDE68A;
    --surface-color: #F1F5F9;
    --text-color: #0F172A;
    
    /* Extended Palette */
    --background-color: #F8FAFC;
    --card-background: #FFFFFF;
    --border-color: #E2E8F0;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --success-color: #059669;
    --warning-color: #D97706;
    --error-color: #DC2626;
    --info-color: #2563EB;
    
    /* Priority Colors */
    --priority-high: #EF4444;
    --priority-normal: #3B82F6;
    --priority-low: #6B7280;
    
    /* Knowledge Level Colors */
    --level-beginner: #EF4444;
    --level-basic: #F59E0B;
    --level-intermediate: #EAB308;
    --level-advanced: #22C55E;
    --level-expert: #059669;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 6px rgba(15, 23, 42, 0.05), 0 2px 4px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.08), 0 4px 10px rgba(15, 23, 42, 0.05);
    --shadow-xl: 0 20px 40px rgba(15, 23, 42, 0.1), 0 8px 16px rgba(15, 23, 42, 0.06);
    --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.15);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 500;
    --z-fixed: 1000;
    --z-modal-backdrop: 1500;
    --z-modal: 2000;
    --z-toast: 2500;
    
    /* Layout */
    --header-height: 64px;
    --container-max-width: 1200px;
    --sidebar-width: 280px;
}

/* Dark Theme */
[data-theme="dark"] {
    --background-color: #0B1120;
    --card-background: #151E30;
    --border-color: #1E2D45;
    --text-color: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --surface-color: #1A2438;
    --primary-subtle: #1E1B4B;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 30px rgba(79, 70, 229, 0.2);
}

/* ===== BASE STYLES ===== */
html {
    font-size: clamp(14px, 2.5vw, 16px);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    min-height: 100vh;
    padding-top: var(--header-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-color);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ===== UTILITY CLASSES ===== */
.hidden {
    display: none !important;
}

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

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.flex-grow {
    flex-grow: 1;
}

/* ===== HEADER ===== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-fixed);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
    padding-top: env(safe-area-inset-top, 0);
    gap: var(--spacing-sm);
}

[data-theme="dark"] .app-header {
    background: rgba(11, 17, 32, 0.88);
}

/* Logo — flex-shrink allows text to truncate on tiny screens */
.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-color);
    min-width: 0;
    flex-shrink: 1;
}

.header-logo:hover {
    text-decoration: none;
}

.header-logo img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    flex-shrink: 0;
}

.header-logo h1 {
    font-size: var(--font-size-base);
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

/* Desktop Navigation */
.desktop-nav {
    display: none;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.desktop-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.desktop-nav .nav-link:hover {
    background: var(--primary-subtle);
    color: var(--primary-color);
    text-decoration: none;
}

.desktop-nav .nav-link.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

/* Header Actions — never shrink */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

/* Theme toggle icon button */
.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-base);
}

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--primary-subtle);
    color: var(--primary-color);
}

/* Mobile Navigation — overlay panel */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: calc(var(--z-fixed) + 1);
    animation: fadeIn var(--transition-fast);
    cursor: pointer;
}

.mobile-nav.open {
    display: flex;
    flex-direction: column;
}

/* Dark overlay behind menu */
.mobile-nav::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: -1;
}

[data-theme="dark"] .mobile-nav::before {
    background: rgba(0, 0, 0, 0.6);
}

/* Menu panel at top */
.mobile-nav-panel {
    background: var(--card-background);
    border-bottom-left-radius: var(--radius-xl);
    border-bottom-right-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-md);
    padding-top: calc(56px + env(safe-area-inset-top, 0) + var(--spacing-sm));
    animation: slideDown var(--transition-base);
    cursor: default;
}

.mobile-nav .nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 14px var(--spacing-lg);
    border-radius: var(--radius-md);
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.mobile-nav .nav-link i {
    width: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-base);
}

.mobile-nav .nav-link:hover {
    background: var(--primary-subtle);
    color: var(--primary-color);
    text-decoration: none;
}

.mobile-nav .nav-link:hover i {
    color: var(--primary-color);
}

.mobile-nav .nav-link.active {
    background: var(--primary-subtle);
    color: var(--primary-color);
    font-weight: 600;
}

.mobile-nav .nav-link.active i {
    color: var(--primary-color);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 10px var(--spacing-lg);
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1.5;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    min-height: 44px;
    min-width: 44px;
    letter-spacing: 0.01em;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.btn-secondary:hover:not(:disabled) {
    background: #1E293B;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-color);
    border-color: var(--border-color);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-subtle);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-color), #E08A00);
    color: white;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25);
}

.btn-accent:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    min-height: 52px;
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    min-height: 32px;
    min-width: auto;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    min-height: calc(100vh - var(--header-height));
    padding: var(--spacing-xl) 0 var(--spacing-2xl);
}

.section {
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.section-header h2 i {
    color: var(--primary-color);
}

.section-header p {
    color: var(--text-secondary);
    margin: 0;
}

/* ===== HERO SECTION ===== */
.hero {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    position: relative;
}

.hero-banner {
    position: relative;
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-banner img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 7;
    object-fit: cover;
}

.hero-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(79, 70, 229, 0.05) 0%,
        rgba(79, 70, 229, 0.25) 100%
    );
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--spacing-xl);
}

.hero-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    max-width: 520px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.7;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--card-background);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.feature-item:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.feature-item i {
    color: var(--primary-color);
    font-size: var(--font-size-base);
}

/* ===== EXISTING PLAN CARD ===== */
.existing-plan-card {
    background: var(--card-background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--primary-light);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.existing-plan-card .card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.existing-plan-card .card-header i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
}

.existing-plan-card .card-header h3 {
    font-size: var(--font-size-lg);
}

.existing-plan-card .card-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.existing-plan-card .card-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ===== COUNTDOWN INFO ===== */
.countdown-info {
    text-align: center;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: var(--primary-subtle);
    border-radius: var(--radius-lg);
}

.countdown-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.countdown-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--spacing-xs);
}

.countdown-detail {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* ===== SECTION ALT ===== */
.section-alt {
    background: var(--primary-subtle);
    padding: var(--spacing-2xl) 0;
    border-radius: 0;
}

[data-theme="dark"] .section-alt {
    background: rgba(79, 70, 229, 0.05);
}

.section + .section-alt,
.section-alt + .section {
    margin-top: var(--spacing-xl);
}

/* ===== HOW IT WORKS ===== */
.steps-container {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.step-card {
    flex: 1;
    min-width: 200px;
    max-width: 300px;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--card-background);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 28px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

.step-card-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-md);
    background: var(--primary-subtle);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.step-card h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.step-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.step-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    opacity: 0.5;
    padding-top: var(--spacing-xl);
}

/* ===== FEATURES GRID ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-card-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-subtle), rgba(79, 70, 229, 0.12));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.feature-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===== AUDIENCE GRID ===== */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.audience-card {
    padding: var(--spacing-lg);
    background: var(--card-background);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.audience-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.audience-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    background: var(--primary-subtle);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.audience-card h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.audience-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.audience-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ===== STUDY TIPS ===== */
.study-tips {
    margin-top: var(--spacing-xl);
}

.study-tips h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.study-tips h3 i {
    color: var(--accent-color);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.tip-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--primary-subtle);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--accent-color);
}

.tip-card i {
    color: var(--accent-color);
    font-size: 1.1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.tip-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.tip-card strong {
    color: var(--text-color);
    display: block;
    margin-bottom: 2px;
}

/* ===== PROGRESS BAR ===== */
.progress-container {
    margin-bottom: var(--spacing-xl);
}

.progress-bar {
    height: 6px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light), var(--accent-color));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-align: center;
    display: block;
}

/* ===== FORM STYLES ===== */
.questionnaire-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-step {
    display: none;
    animation: slideIn var(--transition-base);
}

.form-step.active {
    display: block;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.step-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.step-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-lg);
    background: var(--primary-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.step-header h3 {
    margin-bottom: var(--spacing-xs);
}

.step-header p {
    color: var(--text-secondary);
    margin: 0;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-color);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px var(--spacing-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    color: var(--text-color);
    background: var(--card-background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-height: 48px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.form-group input.error,
.form-group select.error {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.helper-text {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.error-message {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--error-color);
    margin-top: var(--spacing-xs);
    min-height: 18px;
}

.form-row {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.step-actions {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.step-actions .btn {
    flex: 1;
    max-width: 200px;
}

/* ===== SUBJECTS ===== */
.subjects-container {
    background: var(--card-background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
}

.subjects-presets {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.preset-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.preset-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.subjects-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    max-height: 300px;
    overflow-y: auto;
}

.subject-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface-color);
    border-radius: var(--radius-md);
    animation: fadeIn var(--transition-fast);
    border: 1px solid transparent;
    transition: all var(--transition-fast);
}

.subject-item:hover {
    border-color: var(--border-color);
}

.subject-item .subject-name {
    flex: 1;
    font-weight: 500;
}

.subject-item .subject-priority {
    font-size: var(--font-size-xs);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    background: var(--priority-normal);
    color: white;
    font-weight: 600;
}

.subject-item .subject-priority.alta {
    background: var(--priority-high);
}

.subject-item .subject-priority.baixa {
    background: var(--priority-low);
}

.subject-item .btn-remove {
    width: 36px;
    height: 36px;
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    color: var(--error-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.add-subject-form {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.empty-subjects {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-muted);
}

/* ===== DAYS SELECTOR ===== */
.days-selector {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.day-checkbox {
    cursor: pointer;
}

.day-checkbox input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.day-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 72px;
    background: var(--card-background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.day-short {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.day-full {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.day-checkbox input:checked + .day-label {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

.day-checkbox input:checked + .day-label .day-full {
    color: rgba(255, 255, 255, 0.8);
}

.day-checkbox input:focus + .day-label {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* ===== HOURS SELECTOR ===== */
.hours-selector {
    max-width: 400px;
    margin: 0 auto;
}

.hours-input-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.hours-input-group input {
    width: 80px;
    text-align: center;
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.hours-btn {
    background: var(--card-background);
    border: 2px solid var(--border-color);
}

.hours-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* ===== KNOWLEDGE LEVELS ===== */
.knowledge-levels {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.knowledge-item {
    background: var(--card-background);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.knowledge-item .item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.knowledge-item .subject-name {
    font-weight: 600;
}

.knowledge-item .level-value {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 500;
}

.knowledge-slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-color);
    border-radius: var(--radius-full);
    outline: none;
}

.knowledge-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
    box-shadow: 0 2px 6px rgba(79, 70, 229, 0.3);
}

.knowledge-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.knowledge-slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.level-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* ===== SCHEDULE SECTION ===== */
.schedule-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.schedule-summary {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.summary-card {
    background: var(--card-background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.summary-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.summary-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto var(--spacing-sm);
    border-radius: var(--radius-md);
    background: var(--primary-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-color);
}

.summary-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
}

.summary-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== WEEKLY CALENDAR ===== */
.weekly-calendar {
    background: var(--card-background);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

.calendar-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    min-width: 560px;
}

.calendar-day-header {
    padding: var(--spacing-sm);
    text-align: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.calendar-day-header.inactive {
    opacity: 0.5;
}

.calendar-body {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    min-width: 560px;
}

.calendar-day {
    min-height: 120px;
    padding: var(--spacing-sm);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.calendar-day:nth-child(7n) {
    border-right: none;
}

.calendar-day.inactive {
    background: var(--surface-color);
    opacity: 0.5;
}

.calendar-day .day-number {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.day-off {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.calendar-session {
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: white;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.calendar-session.priority-alta {
    background: linear-gradient(135deg, var(--priority-high), #F87171);
}

.calendar-session.priority-normal {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.calendar-session.priority-baixa {
    background: var(--priority-low);
}

/* ===== HOURS DISTRIBUTION ===== */
.hours-distribution {
    background: var(--card-background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.hours-distribution h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.hours-distribution h3 i {
    color: var(--primary-color);
}

.distribution-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.distribution-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.distribution-item .subject-name {
    width: 120px;
    font-weight: 500;
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.distribution-item .bar-container {
    flex: 1;
    height: 24px;
    background: var(--surface-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.distribution-item .bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-sm);
    transition: width var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--spacing-sm);
}

.distribution-item .bar-fill span {
    font-size: var(--font-size-xs);
    color: white;
    font-weight: 600;
}

.distribution-item .hours-value {
    width: 50px;
    text-align: right;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-xl);
    background: var(--primary-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
}

.empty-state h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

/* ===== FAQ SECTION ===== */
.faq-container {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-background);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.faq-item:hover {
    border-color: var(--primary-light);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-color);
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--primary-subtle);
}

.faq-icon {
    transition: transform var(--transition-base);
    color: var(--primary-color);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--text-secondary);
    animation: slideDown var(--transition-base);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.faq-answer p {
    margin: 0;
    line-height: 1.7;
}

/* ===== FOOTER ===== */
.app-footer {
    background: var(--secondary-color);
    color: #CBD5E1;
    padding: var(--spacing-2xl) var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: white;
    font-size: var(--font-size-base);
}

.footer-brand img {
    width: 28px;
    height: 28px;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: #94A3B8;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-light);
    text-decoration: none;
}

.footer-credits {
    font-size: var(--font-size-xs);
    color: #64748B;
}

.footer-credits a {
    color: var(--primary-light);
    font-weight: 500;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-md));
    right: var(--spacing-md);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 360px;
    width: calc(100% - var(--spacing-md) * 2);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--card-background);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: toastIn var(--transition-base);
    border-left: 4px solid var(--info-color);
}

.toast.success { border-left-color: var(--success-color); }
.toast.error { border-left-color: var(--error-color); }
.toast.warning { border-left-color: var(--warning-color); }

.toast-icon { font-size: var(--font-size-lg); }

.toast.success .toast-icon { color: var(--success-color); }
.toast.error .toast-icon { color: var(--error-color); }
.toast.warning .toast-icon { color: var(--warning-color); }
.toast.info .toast-icon { color: var(--info-color); }

.toast-message {
    flex: 1;
    font-size: var(--font-size-sm);
}

.toast-close {
    padding: var(--spacing-xs);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.toast-close:hover {
    background: var(--surface-color);
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

.toast.removing {
    animation: toastOut var(--transition-fast) forwards;
}

@keyframes toastOut {
    to { opacity: 0; transform: translateX(100%); }
}

/* ===== MODAL ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(6px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 420px;
    background: var(--card-background);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: modalIn var(--transition-base);
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: var(--font-size-lg);
}

.modal-close {
    color: var(--text-muted);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-body p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-footer {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* ===== LEGAL PAGES ===== */
.legal-content {
    max-width: 740px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.legal-content h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.legal-content .last-updated {
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2xl);
}

.legal-content h2 {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.legal-content p,
.legal-content li {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.legal-content ul {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.legal-content li {
    margin-bottom: var(--spacing-sm);
}

.legal-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Print Only Elements */
.print-header {
    display: none;
}

/* ===== PRINT STYLES ===== */
/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-fast);
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

@media print {
    /* Hide UI Elements */
    .app-header,
    .mobile-nav,
    .schedule-actions,
    .app-footer,
    .toast-container,
    .theme-toggle,
    .btn {
        display: none !important;
    }
    
    /* Show Print Header */
    .print-header {
        display: flex !important;
        flex-direction: column;
        align-items: center;
        margin-bottom: 2rem;
        padding-bottom: 1rem;
        border-bottom: 2px solid var(--primary-color);
        text-align: center;
    }

    .print-header-brand {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.75rem;
        margin-bottom: 0.5rem;
    }

    .print-header-brand img {
        width: 40px;
        height: 40px;
    }

    .print-header-brand span {
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--primary-color);
    }

    .print-header-title {
        font-size: 1.25rem;
        font-weight: 600;
        color: var(--text-dark);
        margin-bottom: 0.25rem;
    }

    .print-header-date {
        font-size: 0.875rem;
        color: var(--text-light);
    }
    
    body {
        padding: 0;
        background: white !important;
        color: black !important;
        font-size: 11pt;
    }
    
    .main-content {
        padding: 0;
    }

    /* Stats Cards */
    .schedule-stats {
        display: flex;
        justify-content: space-between;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .stat-card {
        border: 1px solid #e5e7eb;
        box-shadow: none;
        break-inside: avoid;
        padding: 1rem;
    }

    /* Calendar Formatting */
    .weekly-calendar {
        box-shadow: none;
        border: 1px solid #e5e7eb;
        border-radius: 8px;
        overflow: hidden;
        margin-bottom: 2rem;
    }
    
    .calendar-header {
        background-color: var(--primary-color) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        color: white !important;
    }

    .calendar-body {
        border-top: 1px solid #e5e7eb;
    }
    
    .calendar-day {
        min-height: 80px;
        border-right: 1px solid #e5e7eb;
    }

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

    .study-block {
        box-shadow: none;
        border: 1px solid rgba(0,0,0,0.1);
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    /* Distribution Section */
    .distribution-card {
        box-shadow: none;
        border: 1px solid #e5e7eb;
        break-inside: avoid;
    }

    .progress-bar {
        background-color: #e5e7eb !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .progress-fill {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    /* Tips Section */
    .tips-section {
        break-inside: avoid;
    }

    .tip-card {
        box-shadow: none;
        border: 1px solid #e5e7eb;
        border-left-width: 4px;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        break-inside: avoid;
    }

    @page {
        margin: 1.5cm;
    }
}