/* Modern CSS Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Colors — "Reflex Blue" palette */
    --primary: #3730e0;        /* electric reflex blue */
    --primary-dark: #2a23b8;
    --primary-light: #6c66f0;
    --reflex-deep: #001489;    /* true Pantone Reflex Blue, for depth */
    --primary-50: #eef0ff;     /* faint tint for backgrounds */
    --primary-100: #e0e2ff;
    --secondary: #6d5ef0;      /* violet-blue accent */
    --teal: #0ea5a4;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;

    /* Neutrals */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-sans);
    background: var(--gray-50);
    min-height: 100vh;
    color: var(--gray-900);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* App Container */
.app {
    min-height: 100vh;
    position: relative;
}

.screen {
    display: none;
    min-height: 100vh;
    animation: fadeIn 0.3s ease-in-out;
}

.screen.active {
    display: flex;
}

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

/* Auth Screen */
#auth-screen {
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: radial-gradient(1200px 600px at 50% -10%, #4b44f0 0%, var(--primary) 38%, var(--reflex-deep) 100%);
}

.auth-container {
    position: relative;
}

.auth-back {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--gray-500);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.auth-back:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.auth-container {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl);
}

.logo {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    animation: bounce 1s ease-in-out;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.app-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.app-tagline {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    font-size: 0.95rem;
}

.oauth-group { margin-bottom: var(--spacing-lg); }
.oauth-buttons { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.oauth-btn { display: flex; align-items: center; justify-content: center; gap: var(--spacing-sm);
    width: 100%; padding: var(--spacing-md); border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md); background: white; color: var(--gray-700);
    font-weight: 600; font-size: 0.92rem; cursor: pointer; transition: var(--transition); }
.oauth-btn:hover { border-color: var(--primary); background: var(--primary-50); }
.oauth-divider { display: flex; align-items: center; gap: var(--spacing-md);
    margin: var(--spacing-lg) 0 var(--spacing-sm); color: var(--gray-400);
    font-size: 0.8rem; }
.oauth-divider::before, .oauth-divider::after { content: ''; flex: 1; height: 1px; background: var(--gray-200); }
.oauth-group[hidden] { display: none; }

.auth-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    background: var(--gray-100);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

.auth-tab.active {
    background: white;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.auth-form {
    display: none;
}

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

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    display: none;
}

.form-error:not(:empty) {
    display: block;
}

/* Buttons */
.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

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

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

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: var(--spacing-sm);
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--gray-600);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.offline-notice {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--warning);
    color: white;
    border-radius: var(--radius-md);
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.offline-notice.show {
    display: flex;
}

/* Main Screen */
#main-screen {
    flex-direction: column;
    background: var(--gray-50);
}

.app-header {
    background: white;
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.header-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

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

/* Main Content */
.app-main {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--gray-500);
}

.empty-state svg {
    margin: 0 auto var(--spacing-xl);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.5rem;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

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

/* Goals Container */
.goals-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.goal-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.goal-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

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

.goal-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.goal-card-status {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.goal-card-status.active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.goal-card-status.completed {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.goal-card-description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.goal-card-warning {
    background: rgba(245, 158, 11, 0.10);
    color: var(--warning);
    border-left: 3px solid var(--warning);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    line-height: 1.4;
}

.goal-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

.goal-card-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-500);
    font-size: 0.875rem;
}

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

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.fab:hover {
    background: var(--primary-dark);
    transform: scale(1.1) rotate(90deg);
}

.fab:active {
    transform: scale(0.95);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    padding: var(--spacing-lg);
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease-in-out;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease-in-out;
}

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

.modal-small {
    max-width: 400px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.modal-close {
    margin-left: auto;
}

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

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.modal-actions .btn {
    flex: 1;
}

/* User Modal */
.user-info {
    padding: var(--spacing-xl);
    text-align: center;
    border-bottom: 1px solid var(--gray-200);
}

.user-avatar {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: var(--primary);
}

.user-email {
    font-weight: 600;
    color: var(--gray-700);
}

.user-actions {
    padding: var(--spacing-lg);
}

/* Loading Overlay */
.loading-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.loading-overlay.show {
    display: flex;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.toast {
    background: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 300px;
    animation: slideInRight 0.3s ease-in-out;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.toast-fade-out {
    opacity: 0;
    transform: translateX(100%);
}

.toast-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    color: #888;
    padding: 0 0 0 var(--spacing-sm);
    margin-left: auto;
    transition: color 0.15s ease;
}

.toast-close:hover {
    color: #333;
}

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

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.info {
    border-left: 4px solid var(--primary);
}

/* Sections */
.daily-tasks-section,
.goals-section {
    margin-bottom: var(--spacing-2xl);
}

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

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.section-subtitle {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

.task-counter {
    background: var(--primary);
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

/* Task List */
.task-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.task-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: white;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: default;
}

.task-item:hover {
    box-shadow: var(--shadow-sm);
}

.task-item.task-done {
    opacity: 0.6;
}

.task-item.task-done .task-title {
    text-decoration: line-through;
    color: var(--gray-400);
}

/* Custom Checkbox */
.task-checkbox-label {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    cursor: pointer;
}

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

.task-checkmark {
    width: 24px;
    height: 24px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: transparent;
}

.task-checkbox:checked + .task-checkmark {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

.task-checkbox:focus-visible + .task-checkmark {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.task-checkmark:hover {
    border-color: var(--primary-light);
}

.task-title {
    font-size: 0.95rem;
    color: var(--gray-800);
    line-height: 1.4;
}

/* Completed divider */
.completed-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0 var(--spacing-md);
    color: var(--gray-400);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.completed-divider::before,
.completed-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

/* Tasks Empty State */
.tasks-empty {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    color: var(--gray-400);
}

.tasks-empty svg {
    margin: 0 auto var(--spacing-md);
    opacity: 0.4;
}

.tasks-empty p {
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .auth-container {
        padding: var(--spacing-xl);
    }
    
    .app-main {
        padding: var(--spacing-md);
    }
    
    .goals-container {
        grid-template-columns: 1fr;
    }
    
    .fab {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
    }
    
    .toast-container {
        top: var(--spacing-md);
        right: var(--spacing-md);
        left: var(--spacing-md);
    }
    
    .toast {
        min-width: auto;
    }
}

/* Print Styles */
@media print {
    .app-header,
    .fab,
    .modal,
    .toast-container,
    .loading-overlay {
        display: none !important;
    }
}

/* ── New Screen Headers ─────────────────────────────────────────────────── */
.header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header h2 {
    flex: 1;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.icon-btn {
    padding: 0.375rem 0.5rem;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--gray-600);
    font-size: 1rem;
    transition: var(--transition);
}

.icon-btn:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.primary-btn {
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

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

/* Time Budget */
.budget-grid { padding: 1rem; }
.budget-row { display: flex; align-items: center; gap: 0.5rem; padding: 0.25rem 0; }
.budget-day { width: 100px; font-weight: 500; }
.budget-slider { flex: 1; }
.budget-value { width: 60px; text-align: right; font-size: 0.875rem; color: #6b7280; }
.budget-presets { display: flex; gap: 0.5rem; padding: 1rem; flex-wrap: wrap; }
.preset-btn { padding: 0.25rem 0.5rem; border-radius: 0.375rem; border: 1px solid #e5e7eb; background: white; cursor: pointer; font-size: 0.875rem; }
.preset-btn:hover { background: #6366f1; color: white; }

/* Weekly View */
.weekly-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0.25rem; padding: 0.5rem; overflow-x: auto; }
.weekly-col { background: white; border-radius: 0.5rem; padding: 0.5rem; min-height: 200px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.weekly-col h4 { font-size: 0.75rem; text-transform: uppercase; color: #6b7280; margin-bottom: 0.5rem; }
.weekly-col.buffer-day { background: repeating-linear-gradient(45deg, white, white 10px, #f9fafb 10px, #f9fafb 20px); opacity: 0.7; }
.weekly-task { font-size: 0.8rem; padding: 0.25rem; border-radius: 0.25rem; margin-bottom: 0.25rem; background: #f9fafb; }
.weekly-task.completed { text-decoration: line-through; opacity: 0.5; }

/* Tooltip */
.tooltip { position: fixed; background: #1a1a2e; color: #fff; padding: 0.25rem 0.5rem; border-radius: 0.25rem; font-size: 0.8rem; max-width: 300px; z-index: 9999; box-shadow: 0 4px 12px rgba(0,0,0,0.3); pointer-events: none; }
.tooltip a { color: #6366f1; }

/* Task badges */
.time-badge, .citation-icon { cursor: pointer; margin-left: 0.25rem; font-size: 0.8rem; opacity: 0.6; }
.time-badge:hover, .citation-icon:hover { opacity: 1; }
.minimize-btn { font-size: 0.7rem; padding: 2px 6px; border-radius: 0.25rem; border: 1px solid #e5e7eb; background: transparent; color: #6b7280; cursor: pointer; margin-left: 0.25rem; }
.minimize-btn:hover { background: #f59e0b; color: white; }

/* All done */
.all-done { text-align: center; padding: 1.5rem; }
.all-done p { font-size: 1.2rem; margin-bottom: 1rem; }

/* Welcome back */
.welcome-back-card { max-width: 500px; margin: 2rem auto; padding: 1.5rem; background: white; border-radius: 0.75rem; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.goal-adjust { padding: 0.5rem 0; border-bottom: 1px solid #e5e7eb; }
.badge-warning { background: #f59e0b; color: white; padding: 2px 6px; border-radius: 0.25rem; font-size: 0.7rem; }
.ramp-toggle { padding: 1rem 0; }
.ramp-toggle label { display: block; padding: 0.25rem 0; cursor: pointer; }

/* Goal color pills */
.goal-pill { display: inline-block; padding: 2px 8px; border-radius: 9999px; font-size: 0.7rem; font-weight: 500; }

/* Milestone tree */
.milestone-tree { padding: 1rem; }
.milestone-node { padding: 0.5rem; margin-bottom: 0.25rem; background: white; border-radius: 0.5rem; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.milestone-header { display: flex; align-items: center; gap: 0.5rem; }
.milestone-type-badge { font-size: 0.65rem; text-transform: uppercase; padding: 2px 6px; border-radius: 0.25rem; background: #6366f1; color: white; }
.progress-bar { height: 6px; background: #f3f4f6; border-radius: 3px; margin-top: 0.25rem; }
.progress-fill { height: 100%; background: #6366f1; border-radius: 3px; transition: width 0.3s; }

/* Research panel */
.research-panel { padding: 1rem; margin: 1rem; background: white; border-radius: 0.75rem; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.research-panel h3 { display: flex; justify-content: space-between; align-items: center; }
.research-content { padding-top: 1rem; }
.research-content h4 { margin-top: 1rem; margin-bottom: 0.25rem; color: #6366f1; font-size: 0.9rem; }
.research-content ul { padding-left: 1rem; }
.research-content li { margin-bottom: 0.25rem; font-size: 0.85rem; }
.research-content a { color: #6366f1; }

/* Feasibility banner */
.feasibility-banner { padding: 1rem; margin: 1rem; background: #fef3c7; color: #92400e; border-radius: 0.5rem; border-left: 4px solid #f59e0b; font-size: 0.9rem; }

/* Secondary button */
.secondary-btn { padding: 0.375rem 0.75rem; border-radius: 0.375rem; border: 1px solid #e5e7eb; background: white; cursor: pointer; font-size: 0.875rem; }
.secondary-btn:hover { background: #f3f4f6; }

/* New screens layout */
#time-budget-screen,
#weekly-screen,
#welcome-back-screen,
#goal-detail-screen {
    flex-direction: column;
    background: var(--gray-50);
}

/* ════════════════════════════════════════════════════════════════════════
   Reflex Blue refresh — buttons, brand, landing page, intention popover
   ════════════════════════════════════════════════════════════════════════ */

/* Button variants */
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--reflex-deep) 140%);
    box-shadow: 0 6px 16px -6px rgba(55, 48, 224, 0.55);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--reflex-deep) 140%);
}
.btn-ghost {
    background: transparent;
    color: var(--gray-700);
}
.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--primary);
}
.btn-lg {
    padding: 0.9rem 1.6rem;
    font-size: 1.02rem;
    border-radius: var(--radius-lg);
}

/* Brand mark + wordmark */
.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}
.brand-mark {
    display: inline-flex;
    line-height: 0;
    filter: drop-shadow(0 4px 8px rgba(0, 20, 137, 0.25));
}
.brand-name {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--gray-900);
}
.header-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

/* ── Landing screen ─────────────────────────────────────────────────────── */
#landing-screen {
    flex-direction: column;
    background:
        radial-gradient(900px 480px at 85% -8%, rgba(108, 102, 240, 0.18), transparent 60%),
        radial-gradient(700px 420px at -5% 8%, rgba(55, 48, 224, 0.12), transparent 55%),
        var(--gray-50);
    overflow-y: auto;
}

.landing-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem clamp(1rem, 5vw, 3rem);
    max-width: 1180px;
    width: 100%;
    margin: 0 auto;
}
.landing-nav-actions {
    display: flex;
    gap: 0.5rem;
}

/* Hero */
.landing-hero {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(1.5rem, 4vw, 4rem);
    align-items: center;
    max-width: 1180px;
    width: 100%;
    margin: 0 auto;
    padding: clamp(2rem, 6vw, 4.5rem) clamp(1rem, 5vw, 3rem) clamp(2rem, 5vw, 3.5rem);
}
.hero-eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-50);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    margin-bottom: 1.1rem;
}
.hero-title {
    font-size: clamp(2.1rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.07;
    letter-spacing: -0.025em;
    color: var(--gray-900);
    margin-bottom: 1.1rem;
}
.hero-accent {
    background: linear-gradient(120deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-sub {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--gray-600);
    max-width: 36ch;
    margin-bottom: 1.6rem;
}
.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}
.hero-note {
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* Hero visual card */
.hero-visual {
    display: flex;
    justify-content: center;
}
.hero-card {
    width: 100%;
    max-width: 380px;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: 0 30px 60px -20px rgba(0, 20, 137, 0.35);
    padding: 1.4rem;
    transform: rotate(1.2deg);
    border: 1px solid var(--gray-100);
}
.hero-card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.hero-card-eyebrow {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--primary);
    font-weight: 700;
}
.hero-card-date {
    font-weight: 700;
    color: var(--gray-800);
}
.hero-card-counter {
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
}
.hero-card-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}
.hero-task {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.92rem;
    color: var(--gray-800);
    background: var(--gray-50);
    padding: 0.6rem 0.7rem;
    border-radius: var(--radius-md);
}
.hero-task.done {
    color: var(--gray-400);
    text-decoration: line-through;
}
.hero-check {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--gray-300);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.75rem;
    color: white;
}
.hero-check.on {
    background: var(--success);
    border-color: var(--success);
}
.hero-chip {
    margin-left: auto;
    font-size: 0.72rem;
    color: var(--gray-500);
}
.hero-intention {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
    background: var(--primary-50);
    border: 1px solid var(--primary-100);
    border-radius: var(--radius-md);
    padding: 0.7rem 0.8rem;
}
.hero-intention-icon {
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 2px;
}
.hero-intention-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
    color: var(--primary);
}
.hero-intention-text {
    font-size: 0.85rem;
    color: var(--gray-700);
    line-height: 1.4;
}

/* Features */
.landing-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.1rem;
    max-width: 1180px;
    width: 100%;
    margin: 0 auto;
    padding: 1rem clamp(1rem, 5vw, 3rem) 2rem;
}
.feature-card {
    background: white;
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-100);
}
.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: white;
}
.icon-blue   { background: linear-gradient(135deg, var(--primary), var(--reflex-deep)); }
.icon-violet { background: linear-gradient(135deg, var(--secondary), var(--primary)); }
.icon-teal   { background: linear-gradient(135deg, #14b8a6, var(--teal)); }
.icon-amber  { background: linear-gradient(135deg, #fbbf24, var(--warning)); }
.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.4rem;
}
.feature-card p {
    font-size: 0.92rem;
    line-height: 1.55;
    color: var(--gray-600);
}

/* How it works */
.landing-steps {
    max-width: 1180px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem clamp(1rem, 5vw, 3rem) 2rem;
}
.steps-title {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1.8rem;
    letter-spacing: -0.02em;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.1rem;
}
.step-card {
    background: white;
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
}
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--primary-50);
    color: var(--primary);
    font-weight: 800;
    font-size: 1.1rem;
    margin-bottom: 0.9rem;
}
.step-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.4rem;
}
.step-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* Final CTA + footer */
.landing-final {
    text-align: center;
    max-width: 760px;
    margin: 1rem auto 0;
    padding: 2.6rem clamp(1rem, 5vw, 3rem);
    border-radius: var(--radius-xl);
    background: radial-gradient(700px 300px at 50% 0%, #4b44f0 0%, var(--primary) 45%, var(--reflex-deep) 110%);
    color: white;
    width: calc(100% - clamp(2rem, 10vw, 6rem));
}
.landing-final h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 0.4rem;
    letter-spacing: -0.02em;
}
.landing-final p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.4rem;
}
.landing-final .btn-primary {
    background: white;
    color: var(--primary);
    box-shadow: 0 10px 24px -8px rgba(0, 0, 0, 0.4);
}
.landing-final .btn-primary:hover {
    background: var(--gray-100);
}
.landing-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 2.2rem 1rem 2.6rem;
    color: var(--gray-500);
    font-size: 0.85rem;
}
.landing-footer span:first-child {
    font-weight: 800;
    color: var(--gray-700);
}

@media (max-width: 820px) {
    .landing-hero { grid-template-columns: 1fr; }
    .hero-sub { max-width: none; }
    .hero-visual { order: -1; }
    .hero-card { transform: none; max-width: 420px; }
}

/* ── Task rows + implementation-intention popover ───────────────────────── */
.task-item {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
}
.task-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
}
.task-row .task-title {
    flex: 1;
}
.task-actions {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    margin-left: auto;
}
.task-info-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--primary-light);
    cursor: pointer;
    padding: 2px;
    border-radius: var(--radius-full);
    transition: var(--transition);
}
.task-info-btn:hover,
.task-info-btn[aria-expanded="true"] {
    color: var(--primary);
    background: var(--primary-50);
}
.task-intention {
    margin-top: 0.6rem;
    padding: 0.75rem 0.85rem;
    background: var(--primary-50);
    border: 1px solid var(--primary-100);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    animation: fadeIn 0.2s ease-in-out;
}
/* `display:flex` above ties with the UA `[hidden]` rule on specificity and wins by
   source order, so the bare `hidden` attribute wouldn't hide it. Re-assert it. */
.task-intention[hidden] {
    display: none;
}
.intention-row {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
}
.intention-icon {
    font-size: 1rem;
    line-height: 1.2;
    flex-shrink: 0;
}
.intention-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1px;
}
.intention-text {
    font-size: 0.88rem;
    color: var(--gray-700);
    line-height: 1.45;
}