/* TaskFlow Pro - Premium CSS + New Features */

:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-bg: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0,0,0,.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -2px rgba(0,0,0,.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1),0 10px 10px -5px rgba(0,0,0,.04);
    --shadow-glow: 0 0 30px rgba(99,102,241,.3);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --font-family: 'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
    --font-size-xs: .75rem;
    --font-size-sm: .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;
    --transition-fast: .15s ease;
    --transition-normal: .3s ease;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border: #334155;
    --border-light: #1e293b;
    --gradient-bg: linear-gradient(135deg,#0f172a 0%,#1e293b 100%);
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--gradient-bg); color: var(--text-primary); line-height: 1.6; min-height: 100vh; overflow-x: hidden; }
h1,h2,h3,h4 { font-weight: 700; line-height: 1.2; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input,textarea,select { font-family: inherit; font-size: inherit; }

/* ===== LANDING ===== */
#landing-page { min-height: 100vh; background: var(--bg-primary); }
.landing-nav { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; position: fixed; top: 0; left: 0; right: 0; background: rgba(255,255,255,.8); backdrop-filter: blur(20px); z-index: 1000; border-bottom: 1px solid var(--border); }
[data-theme="dark"] .landing-nav { background: rgba(15,23,42,.8); }
.landing-nav .logo { font-size: var(--font-size-xl); font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: .5rem; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a { color: var(--text-secondary); font-weight: 500; transition: color var(--transition-fast); }
.nav-links a:hover { color: var(--primary); }

.hero { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; padding: 8rem 4rem 4rem; align-items: center; max-width: 1400px; margin: 0 auto; }
.hero-content { animation: fadeInUp .8s ease; }
.badge-pill { display: inline-block; padding: .5rem 1rem; background: linear-gradient(135deg,rgba(99,102,241,.1),rgba(139,92,246,.1)); color: var(--primary); border-radius: var(--radius-full); font-size: var(--font-size-sm); font-weight: 600; margin-bottom: 1.5rem; border: 1px solid rgba(99,102,241,.2); }
.hero h1 { font-size: var(--font-size-4xl); margin-bottom: 1.5rem; }
.gradient-text { background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.cta-highlight { color: #fff; -webkit-text-fill-color: #fff; text-decoration: underline; text-decoration-color: rgba(255,255,255,.5); text-underline-offset: 4px; font-style: italic; }
.hero p { font-size: var(--font-size-lg); color: var(--text-secondary); margin-bottom: 2rem; max-width: 500px; }
.hero-buttons { display: flex; gap: 1rem; margin-bottom: 3rem; }
.hero-stats { display: flex; gap: 3rem; }
.hero-stats .stat-number { display: block; font-size: var(--font-size-2xl); font-weight: 800; color: var(--primary); }
.hero-stats .stat-label { font-size: var(--font-size-sm); color: var(--text-muted); }

.hero-visual { position: relative; animation: fadeInRight .8s ease; }
.floating-cards { position: relative; height: 500px; }
.floating-card { position: absolute; background: var(--bg-card); border-radius: var(--radius-lg); padding: 1.25rem; box-shadow: var(--shadow-xl); border: 1px solid var(--border); animation: float 6s ease-in-out infinite; }
.card-1 { top: 10%; left: 10%; }
.card-2 { top: 30%; right: 5%; animation-delay: 1s; }
.card-3 { bottom: 20%; left: 5%; animation-delay: 2s; background: linear-gradient(135deg,#f59e0b,#ef4444); color: #fff; }
.card-4 { bottom: 10%; right: 15%; animation-delay: 3s; background: var(--gradient-primary); color: #fff; }
.task-preview { display: flex; align-items: center; gap: .75rem; }
.task-preview input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--primary); }
.task-preview .tag { font-size: var(--font-size-xs); padding: .2rem .5rem; border-radius: var(--radius-sm); background: rgba(255,255,255,.2); }

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }

.features { padding: 6rem 4rem; background: var(--bg-secondary); }
.features h2,.pricing h2 { text-align: center; font-size: var(--font-size-3xl); margin-bottom: 1rem; }
.features-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem; max-width: 1200px; margin: 0 auto; }
.feature-card { background: var(--bg-card); padding: 2rem; border-radius: var(--radius-lg); border: 1px solid var(--border); transition: all var(--transition-normal); }
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); border-color: var(--primary-light); }
.feature-icon { width: 60px; height: 60px; background: var(--gradient-primary); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: #fff; margin-bottom: 1.5rem; }
.feature-card h3 { font-size: var(--font-size-lg); margin-bottom: .75rem; }
.feature-card p { color: var(--text-secondary); font-size: var(--font-size-sm); }

.pricing { padding: 6rem 4rem; }
.pricing-subtitle { text-align: center; color: var(--text-secondary); margin-bottom: 3rem; }
.pricing-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem; max-width: 1100px; margin: 0 auto; align-items: start; }
.pricing-card { background: var(--bg-card); padding: 2.5rem; border-radius: var(--radius-xl); border: 1px solid var(--border); position: relative; transition: all var(--transition-normal); }
.pricing-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); }
.pricing-card.featured { border-color: var(--primary); box-shadow: var(--shadow-xl),0 0 40px rgba(99,102,241,.15); transform: scale(1.05); z-index: 1; }
.badge-popular { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--gradient-primary); color: #fff; padding: .4rem 1rem; border-radius: var(--radius-full); font-size: var(--font-size-xs); font-weight: 600; }
.plan-name { font-size: var(--font-size-lg); font-weight: 600; color: var(--text-secondary); margin-bottom: .5rem; }
.plan-price { font-size: var(--font-size-4xl); font-weight: 800; margin-bottom: 2rem; }
.plan-price span { font-size: var(--font-size-base); font-weight: 400; color: var(--text-muted); }
.plan-features { list-style: none; margin-bottom: 2rem; }
.plan-features li { padding: .5rem 0; color: var(--text-secondary); display: flex; align-items: center; gap: .75rem; }
.plan-features li i { color: var(--success); }
.plan-features li i.disabled { color: var(--text-muted); }
.plan-btn { width: 100%; justify-content: center; }

.cta { padding: 6rem 4rem; text-align: center; background: var(--gradient-primary); color: #fff; }
.cta h2 { font-size: var(--font-size-3xl); margin-bottom: 1rem; color: #fff; }
.cta p { font-size: var(--font-size-lg); opacity: .9; margin-bottom: 2rem; }
.cta .btn-large { background: #fff; color: var(--primary); margin: 0 auto; }
.cta-note { margin-top: 1rem; font-size: var(--font-size-sm); opacity: .7; }

.landing-footer { background: var(--bg-secondary); padding: 4rem; border-top: 1px solid var(--border); }
.footer-content { display: flex; justify-content: space-between; max-width: 1200px; margin: 0 auto; }
.footer-brand p { color: var(--text-muted); font-size: var(--font-size-sm); margin-top: .5rem; }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { color: var(--text-secondary); transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { text-align: center; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--border); color: var(--text-muted); font-size: var(--font-size-sm); }

/* ===== BUTTONS ===== */
.btn-primary { background: var(--gradient-primary); color: #fff; padding: .75rem 1.5rem; border-radius: var(--radius-md); font-weight: 600; transition: all var(--transition-fast); box-shadow: var(--shadow-md),var(--shadow-glow); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg),0 0 40px rgba(99,102,241,.4); }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); padding: .75rem 1.5rem; border-radius: var(--radius-md); font-weight: 600; border: 1px solid var(--border); transition: all var(--transition-fast); }
.btn-secondary:hover { background: var(--bg-secondary); border-color: var(--primary); color: var(--primary); }
.btn-large { padding: 1rem 2rem; font-size: var(--font-size-lg); font-weight: 600; border-radius: var(--radius-md); display: flex; align-items: center; gap: .5rem; }
.btn-full { width: 100%; justify-content: center; padding: 1rem; font-size: var(--font-size-base); }

/* ===== AUTH MODAL ===== */
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,.6); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; z-index: 2000; opacity: 0; visibility: hidden; transition: all var(--transition-normal); }
.modal.active { opacity: 1; visibility: visible; }
.modal-content { background: var(--bg-card); border-radius: var(--radius-xl); box-shadow: var(--shadow-xl); width: 90%; max-width: 480px; max-height: 90vh; overflow-y: auto; transform: scale(.9) translateY(20px); transition: transform var(--transition-normal); }
.modal.active .modal-content { transform: scale(1) translateY(0); }
.close-modal,.close-auth { position: absolute; top: 1rem; right: 1rem; width: 36px; height: 36px; border-radius: 50%; background: var(--bg-tertiary); color: var(--text-muted); font-size: 1.25rem; display: flex; align-items: center; justify-content: center; transition: all var(--transition-fast); }
.close-modal:hover,.close-auth:hover { background: var(--danger); color: #fff; }
.auth-modal-content { padding: 2.5rem; position: relative; }
.auth-header { text-align: center; margin-bottom: 2rem; }
.auth-header h2 { font-size: var(--font-size-2xl); margin-bottom: .5rem; }
.auth-header p { color: var(--text-muted); }
.auth-tabs { display: flex; gap: .5rem; background: var(--bg-tertiary); padding: .25rem; border-radius: var(--radius-md); margin-bottom: 1.5rem; }
.auth-tab { flex: 1; padding: .75rem; border-radius: var(--radius-sm); font-weight: 600; color: var(--text-muted); transition: all var(--transition-fast); }
.auth-tab.active { background: var(--bg-card); color: var(--primary); box-shadow: var(--shadow-sm); }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: .5rem; color: var(--text-secondary); font-size: var(--font-size-sm); }
.form-group input,.form-group select,.form-group textarea { width: 100%; padding: .875rem 1rem; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-primary); color: var(--text-primary); transition: all var(--transition-fast); }
.form-group input:focus,.form-group select:focus,.form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.15); }
.auth-error { color: var(--danger); font-size: var(--font-size-sm); text-align: center; margin-top: .75rem; }
.terms { text-align: center; font-size: var(--font-size-xs); color: var(--text-muted); margin-top: 1rem; }
.terms a { color: var(--primary); }
.social-login { margin-top: 2rem; }
.divider { text-align: center; color: var(--text-muted); font-size: var(--font-size-sm); position: relative; }
.divider::before,.divider::after { content: ''; position: absolute; top: 50%; width: 35%; height: 1px; background: var(--border); }
.divider::before { left: 0; } .divider::after { right: 0; }
.social-buttons { display: flex; gap: 1rem; margin-top: 1rem; }
.social-btn { flex: 1; padding: .875rem; border: 1px solid var(--border); border-radius: var(--radius-md); font-weight: 500; display: flex; align-items: center; justify-content: center; gap: .5rem; transition: all var(--transition-fast); }
.social-btn:hover { border-color: var(--primary); background: var(--bg-tertiary); }

/* ===== MOBILE SIDEBAR OVERLAY ===== */
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 99; backdrop-filter: blur(4px); }
.sidebar-overlay.active { display: block; }

/* ===== BULK BAR ===== */
.bulk-bar { display: flex; align-items: center; gap: .75rem; padding: .75rem 1.5rem; background: var(--primary); color: #fff; border-radius: var(--radius-md); margin-bottom: 1rem; flex-wrap: wrap; }
.bulk-bar span { font-weight: 600; margin-right: auto; }
.bulk-bar button { padding: .4rem 1rem; border-radius: var(--radius-sm); font-size: var(--font-size-sm); font-weight: 600; }

/* ===== TASK ITEM SELECTED ===== */
.task-item.selected { background: rgba(99,102,241,.08); border-left: 3px solid var(--primary); }
[data-theme="dark"] .task-item.selected { background: rgba(99,102,241,.15); }

/* ===== MAIN APP ===== */
#app { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.sidebar { background: var(--bg-card); border-right: 1px solid var(--border); padding: 1.5rem; display: flex; flex-direction: column; position: fixed; width: 280px; height: 100vh; overflow-y: auto; z-index: 100; transition: transform var(--transition-normal); }
.sidebar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.sidebar-header h1 { font-size: var(--font-size-xl); color: var(--primary); display: flex; align-items: center; gap: .5rem; }
.streak-badge { background: linear-gradient(135deg,#f59e0b,#ef4444); color: #fff; padding: .4rem .75rem; border-radius: var(--radius-full); font-size: var(--font-size-xs); font-weight: 600; display: flex; align-items: center; gap: .3rem; }
.user-info { display: flex; align-items: center; gap: .75rem; padding: 1rem; background: var(--bg-tertiary); border-radius: var(--radius-md); margin-bottom: 1.5rem; }
.user-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 600; }
.user-details { flex: 1; display: flex; flex-direction: column; }
.user-name { font-weight: 600; font-size: var(--font-size-sm); }
.user-plan { font-size: var(--font-size-xs); color: var(--text-muted); }
.upgrade-btn { width: 32px; height: 32px; border-radius: var(--radius-sm); background: var(--gradient-primary); color: #fff; display: flex; align-items: center; justify-content: center; }
.sidebar-nav { display: flex; flex-direction: column; gap: .25rem; margin-bottom: 1.5rem; }
.nav-item { display: flex; align-items: center; gap: .75rem; padding: .75rem 1rem; border-radius: var(--radius-md); color: var(--text-secondary); font-weight: 500; transition: all var(--transition-fast); width: 100%; text-align: left; }
.nav-item:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.nav-item.active { background: var(--gradient-primary); color: #fff; }
.nav-item .badge { margin-left: auto; background: rgba(255,255,255,.2); padding: .15rem .5rem; border-radius: var(--radius-full); font-size: var(--font-size-xs); }
.nav-item:not(.active) .badge { background: var(--bg-tertiary); }
.nav-item.logout:hover { background: rgba(239,68,68,.1); color: var(--danger); }
.sidebar-section { margin-bottom: 1.5rem; }
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: .75rem; }
.section-header h3 { font-size: var(--font-size-xs); text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); }
.add-btn { width: 24px; height: 24px; border-radius: var(--radius-sm); background: var(--bg-tertiary); color: var(--text-muted); display: flex; align-items: center; justify-content: center; font-size: .75rem; transition: all var(--transition-fast); }
.add-btn:hover { background: var(--primary); color: #fff; }
#categories-list,#teams-list { display: flex; flex-direction: column; gap: .25rem; }
.category-item,.team-item { display: flex; align-items: center; gap: .5rem; padding: .5rem .75rem; border-radius: var(--radius-sm); cursor: pointer; font-size: var(--font-size-sm); transition: all var(--transition-fast); }
.category-item:hover,.team-item:hover { background: var(--bg-tertiary); }
.category-item.active { background: var(--bg-tertiary); font-weight: 600; color: var(--primary); }
.category-color { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.main-content { grid-column: 2; padding: 1.5rem 2rem; background: var(--bg-primary); min-height: 100vh; }
.main-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; gap: 1rem; }
.header-left { display: flex; align-items: center; gap: 1rem; flex: 1; }
.menu-toggle { display: none; width: 40px; height: 40px; border-radius: var(--radius-md); background: var(--bg-card); color: var(--text-secondary); align-items: center; justify-content: center; }
.search-container { position: relative; flex: 1; max-width: 400px; }
.search-container i { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); }
#search-input { width: 100%; padding: .75rem 1rem .75rem 2.5rem; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-card); color: var(--text-primary); transition: all var(--transition-fast); }
#search-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.1); }
.header-right { display: flex; align-items: center; gap: .75rem; }
.header-action { width: 40px; height: 40px; border-radius: var(--radius-md); background: var(--bg-card); color: var(--text-secondary); display: flex; align-items: center; justify-content: center; position: relative; transition: all var(--transition-fast); }
.header-action:hover { background: var(--bg-tertiary); color: var(--primary); }
.notification-dot { position: absolute; top: 8px; right: 8px; width: 8px; height: 8px; background: var(--danger); border-radius: 50%; }
.btn-primary .shortcut { font-size: var(--font-size-xs); opacity: .7; margin-left: .5rem; }
.ai-banner { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.25rem; background: linear-gradient(135deg,rgba(99,102,241,.1),rgba(139,92,246,.1)); border: 1px solid rgba(99,102,241,.2); border-radius: var(--radius-md); margin-bottom: 1.5rem; }
.ai-icon { width: 40px; height: 40px; background: var(--gradient-primary); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: #fff; }
.ai-content { flex: 1; display: flex; flex-direction: column; gap: .2rem; }
.ai-title { font-weight: 600; font-size: var(--font-size-sm); color: var(--primary); }
.ai-message { font-size: var(--font-size-sm); color: var(--text-secondary); }
.ai-dismiss { width: 28px; height: 28px; border-radius: var(--radius-sm); color: var(--text-muted); transition: all var(--transition-fast); }
.ai-dismiss:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.filter-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem; }
.view-tabs { display: flex; gap: .25rem; background: var(--bg-card); padding: .25rem; border-radius: var(--radius-md); border: 1px solid var(--border); }
.view-tab { padding: .5rem .75rem; border-radius: var(--radius-sm); color: var(--text-muted); transition: all var(--transition-fast); }
.view-tab.active { background: var(--bg-tertiary); color: var(--primary); }
.filter-group { display: flex; gap: .5rem; flex-wrap: wrap; }
.filter-select { padding: .5rem 1rem; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-card); color: var(--text-primary); font-size: var(--font-size-sm); }
.tasks-container { background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--border); overflow: hidden; }
.tasks-header { display: flex; justify-content: space-between; align-items: center; padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border); }
.tasks-header h2 { font-size: var(--font-size-lg); }
.tasks-meta { display: flex; align-items: center; gap: 1rem; }
.tasks-meta span { font-size: var(--font-size-sm); color: var(--text-muted); }
.completion-badge { background: var(--bg-tertiary); padding: .25rem .75rem; border-radius: var(--radius-full); font-weight: 500; color: var(--success); }
.task-progress { padding: 0 1.5rem; padding-top: .5rem; }
.progress-bar { height: 4px; background: var(--bg-tertiary); border-radius: var(--radius-full); overflow: hidden; }
.progress-fill { height: 100%; background: var(--gradient-success); border-radius: var(--radius-full); transition: width var(--transition-normal); width: 0%; }
.task-list { list-style: none; padding: .5rem; }
.task-item { display: flex; align-items: flex-start; gap: .75rem; padding: 1rem 1.25rem; border-radius: var(--radius-md); transition: all var(--transition-fast); border-left: 3px solid transparent; }
.task-item:hover { background: var(--bg-tertiary); }
.task-checkbox { width: 22px; height: 22px; border: 2px solid var(--border); border-radius: 50%; cursor: pointer; transition: all var(--transition-fast); flex-shrink: 0; margin-top: 2px; position: relative; display: flex; align-items: center; justify-content: center; }
.task-checkbox:hover { border-color: var(--primary); }
.task-checkbox.checked { background: var(--success); border-color: var(--success); }
.task-checkbox.checked::after { content: '\f00c'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: #fff; font-size: .65rem; }
.task-content { flex: 1; min-width: 0; }
.task-header { display: flex; align-items: center; gap: .75rem; margin-bottom: .25rem; }
.task-title { font-weight: 500; color: var(--text-primary); word-break: break-word; }
.task-item.completed .task-title { text-decoration: line-through; color: var(--text-muted); }
.task-description { font-size: var(--font-size-sm); color: var(--text-muted); margin-bottom: .5rem; }
.task-meta { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.task-badge { display: inline-flex; align-items: center; gap: .25rem; padding: .2rem .5rem; border-radius: var(--radius-sm); font-size: .7rem; font-weight: 600; text-transform: uppercase; }
.task-badge.priority-low { background: rgba(16,185,129,.1); color: var(--success); }
.task-badge.priority-medium { background: rgba(245,158,11,.1); color: var(--warning); }
.task-badge.priority-high { background: rgba(239,68,68,.1); color: var(--danger); }
.task-badge.priority-urgent { background: rgba(220,38,38,.15); color: #dc2626; }
.task-badge.category { background: var(--bg-tertiary); color: var(--text-secondary); text-transform: capitalize; }
.task-badge.due-date { background: var(--bg-tertiary); color: var(--text-secondary); }
.task-badge.overdue { background: rgba(239,68,68,.1); color: var(--danger); }
.task-actions { display: flex; gap: .25rem; opacity: 0; transition: opacity var(--transition-fast); }
.task-item:hover .task-actions { opacity: 1; }
.task-action-btn { width: 32px; height: 32px; background: transparent; color: var(--text-muted); border-radius: var(--radius-sm); cursor: pointer; transition: all var(--transition-fast); display: flex; align-items: center; justify-content: center; }
.task-action-btn:hover { background: var(--bg-card); color: var(--text-primary); }
.task-action-btn.delete:hover { background: rgba(239,68,68,.1); color: var(--danger); }
.subtasks { margin-top: .5rem; padding-left: 1rem; border-left: 2px solid var(--border); margin-left: .5rem; }
.subtask-item { display: flex; align-items: center; gap: .5rem; padding: .3rem 0; font-size: var(--font-size-sm); color: var(--text-secondary); }
.subtask-item.completed { text-decoration: line-through; color: var(--text-muted); }
.subtask-checkbox { width: 14px; height: 14px; accent-color: var(--success); }
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 5rem 2rem; text-align: center; }
.empty-illustration { width: 100px; height: 100px; background: var(--bg-tertiary); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; }
.empty-illustration i { font-size: 2.5rem; color: var(--text-muted); }
.empty-state h3 { font-size: var(--font-size-xl); margin-bottom: .5rem; }
.empty-state p { color: var(--text-muted); margin-bottom: 1.5rem; }
.side-panel { position: fixed; top: 0; right: 0; width: 400px; height: 100vh; background: var(--bg-card); box-shadow: var(--shadow-xl); z-index: 500; transform: translateX(100%); transition: transform var(--transition-normal); overflow-y: auto; }
.side-panel.active { transform: translateX(0); }
.side-panel:not(.hidden) { transform: translateX(0); }
.panel-header { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--bg-card); z-index: 1; }
.panel-header h2 { font-size: var(--font-size-lg); display: flex; align-items: center; gap: .5rem; }
.panel-header h2 i { color: var(--primary); }
.close-panel { width: 32px; height: 32px; border-radius: 50%; background: var(--bg-tertiary); color: var(--text-muted); display: flex; align-items: center; justify-content: center; transition: all var(--transition-fast); }
.close-panel:hover { background: var(--danger); color: #fff; }
.panel-content { padding: 1.5rem; }
.stats-overview { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 2rem; }
.stat-card { background: var(--bg-tertiary); padding: 1.25rem; border-radius: var(--radius-md); display: flex; align-items: center; gap: 1rem; }
.stat-icon { width: 44px; height: 44px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 1.25rem; color: #fff; }
.stat-icon.blue { background: #3b82f6; } .stat-icon.green { background: #10b981; } .stat-icon.orange { background: #f59e0b; } .stat-icon.purple { background: #8b5cf6; }
.stat-info .stat-value { display: block; font-size: var(--font-size-xl); font-weight: 700; }
.stat-info .stat-label { font-size: var(--font-size-xs); color: var(--text-muted); }
.chart-section { margin-bottom: 2rem; }
.chart-section h3 { font-size: var(--font-size-sm); color: var(--text-muted); margin-bottom: 1rem; text-transform: uppercase; letter-spacing: .05em; }
.weekly-chart { display: flex; align-items: flex-end; gap: .5rem; height: 100px; }
.chart-bar { flex: 1; background: var(--primary); border-radius: var(--radius-sm) var(--radius-sm) 0 0; min-height: 5px; position: relative; }
.chart-bar::after { content: attr(data-day); position: absolute; bottom: -20px; left: 50%; transform: translateX(-50%); font-size: .6rem; color: var(--text-muted); }
.priority-bars { display: flex; flex-direction: column; gap: .75rem; }
.priority-row { display: flex; align-items: center; gap: .75rem; }
.priority-label { width: 60px; font-size: var(--font-size-xs); text-transform: capitalize; }
.priority-bar { flex: 1; height: 8px; background: var(--bg-tertiary); border-radius: var(--radius-full); overflow: hidden; }
.priority-bar-fill { height: 100%; border-radius: var(--radius-full); transition: width var(--transition-normal); }
.priority-bar-fill.urgent { background: #ef4444; } .priority-bar-fill.high { background: #f97316; } .priority-bar-fill.medium { background: #f59e0b; } .priority-bar-fill.low { background: #10b981; }
.priority-count { width: 30px; font-size: var(--font-size-xs); color: var(--text-muted); text-align: right; }
.insight-card { padding: 1.25rem; background: var(--bg-tertiary); border-radius: var(--radius-md); margin-bottom: 1rem; border-left: 3px solid var(--primary); }
.insight-card.warning { border-left-color: var(--warning); } .insight-card.success { border-left-color: var(--success); } .insight-card.tip { border-left-color: var(--info); } .insight-card.alert { border-left-color: var(--danger); }
.insight-title { font-weight: 600; font-size: var(--font-size-sm); margin-bottom: .25rem; display: flex; align-items: center; gap: .5rem; }
.insight-message { font-size: var(--font-size-sm); color: var(--text-secondary); }
.task-modal-content { max-width: 600px; }
.task-modal-content .modal-header { padding: 1.5rem; border-bottom: 1px solid var(--border); }
.modal-header { display: flex; justify-content: space-between; align-items: center; }
.task-modal-content .form-group { padding: 0 1.5rem; }
.task-modal-content .modal-actions { padding: 1.5rem; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: .75rem; }
.form-row { display: flex; gap: 1rem; }
.form-row .form-group { flex: 1; }
.priority-selector { display: flex; gap: .5rem; }
.priority-btn { padding: .5rem 1rem; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-primary); color: var(--text-secondary); font-size: var(--font-size-sm); transition: all var(--transition-fast); }
.priority-btn:hover { border-color: var(--primary); color: var(--primary); }
.priority-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.priority-btn.urgent { background: var(--danger); border-color: var(--danger); color: #fff; }
.optional { font-weight: 400; color: var(--text-muted); font-size: var(--font-size-xs); }
.subtasks-section { padding: 0 1.5rem; margin-bottom: 1.5rem; }
.subtasks-section label { display: block; font-weight: 500; margin-bottom: .75rem; color: var(--text-secondary); font-size: var(--font-size-sm); }
#subtasks-container { display: flex; flex-direction: column; gap: .5rem; margin-bottom: .75rem; }
.subtask-input-group { display: flex; gap: .5rem; }
.subtask-input-group input { flex: 1; padding: .5rem .75rem; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-primary); color: var(--text-primary); font-size: var(--font-size-sm); }
.add-subtask-btn { display: inline-flex; align-items: center; gap: .5rem; padding: .5rem .75rem; border: 1px dashed var(--border); background: transparent; color: var(--text-muted); border-radius: var(--radius-sm); cursor: pointer; font-size: var(--font-size-sm); transition: all var(--transition-fast); }
.add-subtask-btn:hover { border-color: var(--primary); color: var(--primary); }
.subscription-modal { max-width: 450px; text-align: center; padding: 2.5rem; position: relative; }
.subscription-header h2 { font-size: var(--font-size-2xl); margin-bottom: .5rem; }
.subscription-header p { color: var(--text-muted); margin-bottom: 2rem; }
.subscription-features { text-align: left; margin-bottom: 2rem; }
.feature-item { display: flex; align-items: center; gap: .75rem; padding: .75rem 0; border-bottom: 1px solid var(--border); }
.feature-item i { color: var(--success); }
.subscription-price { margin-bottom: 1.5rem; }
.subscription-price .price { font-size: var(--font-size-4xl); font-weight: 800; color: var(--primary); }
.subscription-price .period { color: var(--text-muted); }
.subscription-note { font-size: var(--font-size-xs); color: var(--text-muted); margin-top: 1rem; }
.toast-container { position: fixed; bottom: 2rem; right: 2rem; z-index: 3000; display: flex; flex-direction: column; gap: .5rem; }
.toast { padding: 1rem 1.5rem; background: var(--bg-card); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: .75rem; animation: slideIn .3s ease; border-left: 4px solid var(--primary); max-width: 350px; }
.toast.success { border-left-color: var(--success); } .toast.error { border-left-color: var(--danger); } .toast.warning { border-left-color: var(--warning); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.upgrade-banner { position: fixed; bottom: 0; left: 0; right: 0; background: var(--gradient-primary); color: #fff; padding: 1rem 2rem; z-index: 1000; display: flex; justify-content: space-between; align-items: center; }
.upgrade-content { display: flex; align-items: center; gap: .75rem; }
.upgrade-banner .btn-primary { background: #fff; color: var(--primary); }
.remove-subtask { width: 28px; height: 28px; border-radius: var(--radius-sm); background: rgba(239,68,68,.1); color: var(--danger); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all var(--transition-fast); }
.remove-subtask:hover { background: var(--danger); color: #fff; }
.team-modal { max-width: 480px; }
.team-modal .modal-header { padding: 1.5rem; border-bottom: 1px solid var(--border); }
.team-modal .form-group { padding: 0 1.5rem; }
.team-modal .modal-actions { padding: 1.5rem; }
.invite-section { padding: 0 1.5rem; margin-bottom: 1rem; }
.invite-section label { display: block; font-weight: 500; margin-bottom: .5rem; color: var(--text-secondary); font-size: var(--font-size-sm); }
.invite-link { display: flex; gap: .5rem; }
.invite-link input { flex: 1; padding: .75rem 1rem; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-primary); color: var(--text-primary); font-size: var(--font-size-sm); }
.copy-btn { padding: .75rem 1rem; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-tertiary); color: var(--text-secondary); transition: all var(--transition-fast); }
.copy-btn:hover { border-color: var(--primary); color: var(--primary); }
.hidden { display: none !important; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-tertiary); }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ===== RESPONSIVE ===== */

/* Mobile nav toggle for landing */
.mobile-menu-toggle { display: none; width: 40px; height: 40px; border-radius: var(--radius-md); background: var(--bg-tertiary); color: var(--text-secondary); align-items: center; justify-content: center; font-size: 1.1rem; border: 1px solid var(--border); }

/* Board View */
.board-view { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding: 1rem; min-height: 300px; }
.board-column { background: var(--bg-tertiary); border-radius: var(--radius-md); border: 1px solid var(--border); overflow: hidden; }
.board-column-header { display: flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1rem; font-weight: 600; font-size: var(--font-size-sm); border-bottom: 1px solid var(--border); background: var(--bg-card); }
.board-dot { width: 8px; height: 8px; border-radius: 50%; }
.board-dot.pending { background: var(--warning); }
.board-dot.in-progress { background: var(--info); }
.board-dot.completed { background: var(--success); }
.board-count { margin-left: auto; background: var(--bg-tertiary); padding: 0.1rem 0.5rem; border-radius: var(--radius-full); font-size: var(--font-size-xs); color: var(--text-muted); }
.board-column-content { padding: 0.5rem; min-height: 200px; }
.board-task { background: var(--bg-card); padding: 0.75rem; border-radius: var(--radius-sm); margin-bottom: 0.5rem; border: 1px solid var(--border); font-size: var(--font-size-sm); cursor: pointer; transition: all var(--transition-fast); }
.board-task:hover { box-shadow: var(--shadow-sm); border-color: var(--primary-light); }

/* Loading Skeleton */
.loading-skeleton { padding: 0.5rem; }
.skeleton-item { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.25rem; }
.skeleton-checkbox { width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0; background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--border) 50%, var(--bg-tertiary) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; }
.skeleton-content { flex: 1; }
.skeleton-title { height: 14px; width: 60%; border-radius: 4px; margin-bottom: 0.5rem; background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--border) 50%, var(--bg-tertiary) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; }
.skeleton-meta { height: 10px; width: 40%; border-radius: 4px; background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--border) 50%, var(--bg-tertiary) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* Notification Panel */
.notification-panel { position: fixed; top: 60px; right: 1rem; width: 320px; max-height: 400px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-xl); z-index: 600; overflow: hidden; }
.notification-panel-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.25rem; border-bottom: 1px solid var(--border); }
.notification-panel-header h3 { font-size: var(--font-size-sm); font-weight: 700; }
.notification-panel-content { padding: 1rem; overflow-y: auto; max-height: 320px; }
.notification-empty { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; padding: 2rem; color: var(--text-muted); text-align: center; }
.notification-empty i { font-size: 1.5rem; opacity: 0.5; }

/* Progress bar fix */
.task-progress { padding: 0 1.5rem; padding-top: 0.5rem; padding-bottom: 0.25rem; }
.progress-bar { height: 6px; }

/* Task actions always visible on mobile */
@media (max-width: 1024px) {
    .mobile-menu-toggle { display: flex; }
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-card); padding: 1.5rem; flex-direction: column; gap: 1rem; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); z-index: 999; }
    .nav-links.open { display: flex; }
    .nav-links a { display: block !important; }
}
@media (max-width: 1024px) {
    #app { grid-template-columns: 1fr; }
    .sidebar { transform: translateX(-100%); }
    .sidebar.active { transform: translateX(0); box-shadow: var(--shadow-xl); }
    .main-content { grid-column: 1; padding: 1rem; }
    .menu-toggle { display: flex; }
    .hero { grid-template-columns: 1fr; text-align: center; padding: 7rem 2rem 4rem; }
    .hero p { margin: 0 auto 2rem; }
    .hero-buttons,.hero-stats { justify-content: center; }
    .hero-visual { display: none; }
    .features-grid,.pricing-cards { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
    .landing-nav { padding: 1rem; }
    .nav-links a:not(.btn-primary) { display: none; }
    .hero h1 { font-size: var(--font-size-3xl); }
    .features,.pricing,.cta { padding: 4rem 1.5rem; }
    .features-grid,.pricing-cards { grid-template-columns: 1fr; }
    .main-header { flex-wrap: wrap; }
    .header-left { width: 100%; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .filter-group { flex-wrap: wrap; }
    .filter-select { flex: 1; }
    .side-panel { width: 100%; }
    .toast-container { left: 1rem; right: 1rem; bottom: 1rem; }
    .toast { max-width: 100%; }
    .bulk-bar { flex-wrap: wrap; }
    .form-row { flex-direction: column; }
    .board-view { grid-template-columns: 1fr; }
    .notification-panel { width: calc(100% - 2rem); }
    .task-actions { opacity: 1 !important; }
}