/* ===================================
   Context.ai - Features Page
   Premium SaaS Features Showcase
   =================================== */

:root {
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    
    --green-50: #d1fae5;
    --green-500: #10b981;
    --green-700: #047857;
    
    --purple-500: #8b5cf6;
    --yellow-500: #f59e0b;
    --red-500: #ef4444;
    
    --white: #ffffff;
    --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;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    --spacing: 8px;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

/* ===================================
   Navigation
   =================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    padding: calc(var(--spacing) * 2.5) 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing) * 4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1.5);
    cursor: pointer;
    text-decoration: none;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 4);
}

.nav-links a {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a.active,
.nav-links a:hover {
    color: var(--blue-600);
}

.btn-nav-cta {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-800) 100%);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.25);
}

.btn-nav-cta:hover {
    transform: translateY(-2px);
}

/* ===================================
   Features Hero
   =================================== */

.features-hero {
    padding: calc(var(--spacing) * 20) calc(var(--spacing) * 4) calc(var(--spacing) * 10);
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
    text-align: center;
    position: relative;
}

.hero-container {
    max-width: 1000px;
    margin: 0 auto;
}

.brain-motif {
    width: 180px;
    height: 180px;
    margin: 0 auto calc(var(--spacing) * 4);
}

.abstract-brain {
    width: 100%;
    height: 100%;
    animation: brainRotate 20s linear infinite;
}

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

.orbit-node {
    animation: nodeGlow 2s ease-in-out infinite;
}

@keyframes nodeGlow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.features-title {
    font-size: 52px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: calc(var(--spacing) * 2);
    letter-spacing: -0.02em;
}

.features-subtitle {
    font-size: 20px;
    color: var(--gray-600);
    font-weight: 400;
}

/* ===================================
   Feature Blocks
   =================================== */

.feature-block {
    padding: calc(var(--spacing) * 15) calc(var(--spacing) * 4);
    position: relative;
}

.feature-block:nth-child(even) {
    background: var(--gray-50);
}

.feature-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: calc(var(--spacing) * 10);
    align-items: center;
}

/* Alternate layout for even sections */
.feature-present .feature-container,
.feature-act .feature-container {
    grid-template-columns: 1.3fr 1fr;
}

.feature-present .feature-content {
    order: 2;
}

.feature-present .feature-visual {
    order: 1;
}

/* Feature Content */
.feature-number {
    display: inline-block;
    background: var(--blue-50);
    color: var(--blue-600);
    font-size: 16px;
    font-weight: 800;
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: calc(var(--spacing) * 3);
}

.feature-title {
    font-size: 48px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: calc(var(--spacing) * 2);
    letter-spacing: -0.02em;
}

.feature-description {
    font-size: 20px;
    line-height: 1.6;
    color: var(--gray-600);
    margin-bottom: calc(var(--spacing) * 4);
}

.feature-benefits {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 2.5);
}

.feature-benefits li {
    display: flex;
    align-items: start;
    gap: calc(var(--spacing) * 2);
    font-size: 16px;
    color: var(--gray-700);
}

.feature-benefits svg {
    flex-shrink: 0;
    color: var(--blue-600);
    margin-top: 2px;
}

/* ===================================
   UI Cards
   =================================== */

.feature-visual {
    position: relative;
}

.ui-card {
    background: var(--white);
    border-radius: 20px;
    padding: calc(var(--spacing) * 4);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--gray-200);
    transition: all 0.4s ease;
}

.ui-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.3);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: calc(var(--spacing) * 3);
    padding-bottom: calc(var(--spacing) * 2);
    border-bottom: 1px solid var(--gray-200);
}

.card-title {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1.5);
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-900);
}

.status-live {
    background: var(--green-50);
    color: var(--green-700);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.slide-count {
    font-size: 13px;
    color: var(--gray-600);
    font-weight: 600;
}

.confidence-badge {
    background: var(--blue-50);
    color: var(--blue-700);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 100px;
}

/* ===================================
   KPI Analysis Card
   =================================== */

.kpi-grid-large {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--spacing) * 2.5);
    margin-bottom: calc(var(--spacing) * 3);
}

.kpi-card-large {
    background: var(--gray-50);
    border-radius: 16px;
    padding: calc(var(--spacing) * 3);
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    transition: all 0.3s;
}

.kpi-card-large:hover {
    background: var(--blue-50);
    transform: translateY(-4px);
}

.kpi-icon {
    font-size: 32px;
}

.kpi-data {
    flex: 1;
}

.kpi-label {
    font-size: 13px;
    color: var(--gray-600);
    font-weight: 600;
    margin-bottom: calc(var(--spacing) * 0.5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kpi-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1;
    margin-bottom: calc(var(--spacing) * 1);
}

.kpi-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
}

.kpi-change.positive {
    background: var(--green-50);
    color: var(--green-700);
}

.kpi-change.neutral {
    background: var(--gray-200);
    color: var(--gray-600);
}

/* Insights Panel */
.insights-panel {
    background: linear-gradient(135deg, var(--blue-50) 0%, var(--white) 100%);
    border-radius: 12px;
    padding: calc(var(--spacing) * 2.5);
    border: 1px solid var(--blue-200);
}

.insight-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--purple-500) 100%);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 100px;
    text-transform: uppercase;
    margin-bottom: calc(var(--spacing) * 1.5);
}

.insight-text {
    font-size: 14px;
    line-height: 1.7;
    color: var(--gray-700);
}

/* ===================================
   Slide Generation Card
   =================================== */

.slide-preview-large {
    background: var(--gray-50);
    border-radius: 16px;
    padding: calc(var(--spacing) * 3);
    margin-bottom: calc(var(--spacing) * 3);
}

.slide-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: calc(var(--spacing) * 2.5);
}

.slide-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
}

.slide-number {
    font-size: 13px;
    color: var(--gray-500);
    font-weight: 600;
}

.slide-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing) * 3);
}

.slide-chart {
    height: 120px;
    display: flex;
    align-items: center;
}

.slide-chart svg {
    width: 100%;
    height: 100%;
}

.slide-bullets {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 1.5);
}

.bullet-item {
    display: flex;
    align-items: start;
    gap: calc(var(--spacing) * 1.5);
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.6;
}

.bullet-dot {
    width: 6px;
    height: 6px;
    background: var(--blue-600);
    border-radius: 50%;
    margin-top: 7px;
    flex-shrink: 0;
}

.slide-actions {
    display: flex;
    gap: calc(var(--spacing) * 1.5);
}

.slide-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--spacing) * 1);
    padding: 12px 20px;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.3s;
}

.slide-btn:hover {
    background: var(--blue-50);
    border-color: var(--blue-300);
    color: var(--blue-700);
    transform: translateY(-2px);
}

.slide-btn.primary {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-800) 100%);
    border-color: transparent;
    color: var(--white);
}

.slide-btn.primary:hover {
    transform: translateY(-2px) scale(1.02);
}

/* ===================================
   Decision Alert Card
   =================================== */

.decision-panel {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 3);
}

.recommendation-card {
    background: linear-gradient(135deg, var(--blue-50) 0%, var(--white) 100%);
    border-radius: 16px;
    padding: calc(var(--spacing) * 3);
    border-left: 4px solid var(--blue-600);
}

.recommendation-card.priority-high {
    border-left-color: var(--blue-600);
}

.rec-header {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    margin-bottom: calc(var(--spacing) * 2);
}

.rec-icon {
    font-size: 32px;
}

.rec-type {
    font-size: 13px;
    color: var(--gray-600);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.rec-priority {
    font-size: 12px;
    font-weight: 700;
    color: var(--blue-700);
}

.rec-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: calc(var(--spacing) * 1.5);
}

.rec-description {
    font-size: 14px;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: calc(var(--spacing) * 2.5);
}

.rec-metrics {
    display: flex;
    gap: calc(var(--spacing) * 3);
}

.metric-item {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 0.5);
}

.metric-label {
    font-size: 12px;
    color: var(--gray-600);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
}

/* Alert List */
.alert-list {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 1.5);
}

.alert-item {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    padding: calc(var(--spacing) * 2);
    background: var(--gray-50);
    border-radius: 12px;
    border-left: 3px solid var(--gray-300);
    transition: all 0.3s;
}

.alert-item:hover {
    background: var(--white);
    transform: translateX(4px);
}

.alert-item.warning {
    border-left-color: var(--yellow-500);
}

.alert-item.success {
    border-left-color: var(--green-500);
}

.alert-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.alert-item.warning .alert-indicator {
    background: var(--yellow-500);
}

.alert-item.success .alert-indicator {
    background: var(--green-500);
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 2px;
}

.alert-text {
    font-size: 13px;
    color: var(--gray-600);
}

.alert-action {
    background: var(--white);
    border: 2px solid var(--gray-200);
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.3s;
}

.alert-action:hover {
    border-color: var(--blue-300);
    color: var(--blue-700);
}

/* ===================================
   CTA Section
   =================================== */

.cta-section {
    padding: calc(var(--spacing) * 15) calc(var(--spacing) * 4);
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-800) 100%);
    text-align: center;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 42px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: calc(var(--spacing) * 2);
}

.cta-text {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: calc(var(--spacing) * 5);
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: calc(var(--spacing) * 2);
}

.btn-cta-primary {
    background: var(--white);
    color: var(--blue-600);
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 35px -10px rgba(0, 0, 0, 0.3);
}

.btn-cta-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-cta-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ===================================
   Responsive
   =================================== */

@media (max-width: 1200px) {
    .feature-container {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing) * 6);
    }
    
    .feature-present .feature-content,
    .feature-present .feature-visual {
        order: unset;
    }
    
    .kpi-grid-large {
        grid-template-columns: 1fr;
    }
    
    .slide-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links a:not(.btn-nav-cta) {
        display: none;
    }
    
    .features-title {
        font-size: 36px;
    }
    
    .feature-title {
        font-size: 32px;
    }
    
    .cta-actions {
        flex-direction: column;
    }
}

/* ===================================
   Animations
   =================================== */

.ui-card {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.ui-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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