/* QuickNote - Warm & Simple Design */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    /* Warm Color Palette */
    --primary: #FF8C42;
    --primary-light: #FFA45B;
    --primary-dark: #E67A32;
    --secondary: #FFD93D;
    --secondary-light: #FFF4CC;
    --accent: #8B5A3C;
    
    /* Background Colors */
    --bg-main: #FFF8F0;
    --bg-card: #FFFFFF;
    --bg-gradient: linear-gradient(135deg, #FFE5CC 0%, #FFF8F0 50%, #FFEFD5 100%);
    
    /* Text Colors */
    --text-primary: #3E2723;
    --text-secondary: #6D4C41;
    --text-light: #8D6E63;
    
    /* Note Colors */
    --note-light: #FFF4E6;
    --note-medium: #FFE0B2;
    --note-dark: #FFCC80;
    --note-warm: #FFAB91;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(139, 90, 60, 0.08);
    --shadow-md: 0 4px 16px rgba(139, 90, 60, 0.12);
    --shadow-lg: 0 8px 24px rgba(139, 90, 60, 0.16);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Header */
.header {
    background: var(--bg-card);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo-icon {
    font-size: 2rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

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

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--primary-light);
}

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

.btn-danger {
    background: #FF6B6B;
    color: white;
}

.btn-danger:hover {
    background: #EE5A52;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Auth Page */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.auth-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
}

.auth-logo {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.auth-logo-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

.auth-logo h1 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.auth-logo p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #E0E0E0;
    border-radius: var(--radius-md);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-main);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
}

.auth-toggle {
    text-align: center;
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
}

.auth-toggle a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.auth-toggle a:hover {
    text-decoration: underline;
}

.error-message {
    background: #FFEBEE;
    color: #C62828;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.success-message {
    background: #E8F5E9;
    color: #2E7D32;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

/* Dashboard */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.search-bar {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-bar input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid #E0E0E0;
    border-radius: var(--radius-lg);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    background: var(--bg-card);
    transition: all 0.3s ease;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 1.2rem;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Notes Grid */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.note-card {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    cursor: pointer;
    border-left: 4px solid var(--primary);
}

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

.note-card.color-light {
    background: var(--note-light);
    border-left-color: var(--primary-light);
}

.note-card.color-medium {
    background: var(--note-medium);
    border-left-color: var(--primary);
}

.note-card.color-dark {
    background: var(--note-dark);
    border-left-color: var(--primary-dark);
}

.note-card.color-warm {
    background: var(--note-warm);
    border-left-color: var(--accent);
}

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

.note-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    word-break: break-word;
}

.note-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    word-break: break-word;
    max-height: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.note-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(139, 90, 60, 0.1);
}

.note-date {
    font-size: 0.8rem;
    color: var(--text-light);
}

.note-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    font-size: 1.1rem;
}

.icon-btn:hover {
    background: rgba(255, 140, 66, 0.1);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(62, 39, 35, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-header h2 {
    color: var(--primary);
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    padding: 0.25rem;
    line-height: 1;
}

.close-btn:hover {
    color: var(--text-primary);
}

.modal-footer {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Color Picker */
.color-picker {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.color-option {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 3px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.selected {
    border-color: var(--accent);
    transform: scale(1.15);
}

.color-option.light {
    background: var(--note-light);
}

.color-option.medium {
    background: var(--note-medium);
}

.color-option.dark {
    background: var(--note-dark);
}

.color-option.warm {
    background: var(--note-warm);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

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

/* Loading */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.spinner {
    border: 3px solid var(--secondary-light);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }
    
    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-bar {
        width: 100%;
    }
    
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .notes-grid {
        grid-template-columns: 1fr;
    }
    
    .auth-card {
        padding: var(--spacing-lg);
    }
    
    .modal-content {
        padding: var(--spacing-lg);
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }