/* ============================================================
   TINY KANBAN – SCROLLABLE PORTFOLIO CASE-STUDY STYLING
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@500;600;700;800&display=swap');

:root {
    --bg-main: #0b0f19;
    --bg-darker: #070a10;
    --card-bg: rgba(22, 31, 48, 0.65);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.35);
    --accent-secondary: #0ea5e9;
    
    --col-todo-bg: rgba(17, 24, 39, 0.4);
    --col-doing-bg: rgba(251, 191, 36, 0.02);
    --col-done-bg: rgba(52, 211, 153, 0.02);
    
    --pri-high: #f87171;
    --pri-med: #fb923c;
    --pri-low: #4ade80;
    
    --font-heading: 'Outfit', 'Inter', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
    
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    
    --shadow-premium: 0 20px 50px rgba(0, 0, 0, 0.5);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base resets & fonts */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-main);
}

body {
    font-family: var(--font-body);
    background: radial-gradient(circle at 50% 0%, #161e38 0%, var(--bg-main) 50%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Glassmorphism utility */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
}

/* Layout wrappers */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    color: white;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #ffffff, #d1d5db);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding-top: 160px;
    padding-bottom: 80px;
    text-align: center;
}

.badge-private {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 9999px;
    color: #a5b4fc;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
    background: linear-gradient(to right, #ffffff, #9ca3af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-title span {
    background: linear-gradient(to right, #818cf8, #38bdf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    max-width: 640px;
    margin: 0 auto 40px auto;
    font-size: 18px;
    color: var(--text-secondary);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* Split Showcase Sections (Scrollable Views) */
.showcase-section {
    padding: 80px 0;
}

.showcase-section:nth-child(even) {
    background: var(--bg-darker);
}

.split-layout {
    display: flex;
    align-items: center;
    gap: 60px;
}

.split-layout.reverse {
    flex-direction: row-reverse;
}

.spec-info {
    width: 45%;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.spec-badge {
    display: inline-flex;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-secondary);
}

.spec-title {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.8px;
}

.spec-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.spec-bullets {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 10px;
}

.spec-bullet {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.bullet-icon {
    color: var(--accent);
    font-size: 14px;
    margin-top: 2px;
}

.bullet-text h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.bullet-text p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.spec-visual {
    width: 55%;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-premium);
    overflow: hidden;
}

/* Visual Widget: Kanban Simulation */
.demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.demo-title-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.demo-indicator {
    width: 6px;
    height: 6px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
}

.demo-title-text {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.demo-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.demo-btn {
    padding: 4px 8px;
    font-size: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.demo-btn:hover {
    background: rgba(255, 255, 255, 0.08);
}

.demo-btn-active {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.4);
    color: #a5b4fc;
}

.demo-input {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    color: var(--text-primary);
    font-size: 10px;
    width: 120px;
    outline: none;
}

/* Simulation Dashboard Stats */
.demo-dashboard {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.dash-card {
    padding: 10px;
    border-radius: var(--radius-md);
    background: rgba(17, 24, 39, 0.35);
    border: 1px solid var(--border-color);
    text-align: center;
}

.dash-val {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.dash-lbl {
    font-size: 9px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-top: 2px;
}

/* Board columns grid */
.board-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.board-col {
    background: var(--col-todo-bg);
    border-radius: var(--radius-md);
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.02);
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 280px;
}

.board-col.col-doing { background: var(--col-doing-bg); }
.board-col.col-done { background: var(--col-done-bg); }

.col-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    padding-bottom: 6px;
}

.col-title {
    font-family: var(--font-heading);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.col-badge {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 9999px;
}

.cards-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1;
}

/* Simulation card details */
.sim-card {
    background: rgba(30, 41, 59, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    padding: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), 
                box-shadow 0.25s ease, 
                opacity 0.3s ease;
    animation: cardEntrance 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.sim-card:hover { border-color: var(--border-hover); }
.sim-card.moving { transform: scale(0.95); opacity: 0.5; }

@keyframes cardEntrance {
    0% { opacity: 0; transform: scale(0.9) translateY(10px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-epic {
    font-size: 9px;
    font-weight: 600;
    padding: 1px 5px;
    border-radius: 3px;
    text-transform: uppercase;
}

.card-key {
    font-family: monospace;
    font-size: 9px;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.06);
    padding: 1px 4px;
    border-radius: 3px;
    font-weight: 600;
}

.card-priority {
    font-size: 8px;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 3px;
    text-transform: uppercase;
}

.priority-high { background: rgba(248, 113, 113, 0.12); color: var(--pri-high); }
.priority-medium { background: rgba(251, 146, 60, 0.12); color: var(--pri-med); }
.priority-low { background: rgba(74, 222, 128, 0.12); color: var(--pri-low); }

.card-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.35;
}

/* Card subtasks */
.card-subtasks {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: rgba(0, 0, 0, 0.12);
    padding: 6px;
    border-radius: 4px;
}

.subtask-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 9px;
    color: var(--text-secondary);
}

.subtask-check {
    width: 10px;
    height: 10px;
    border: 1px solid var(--text-muted);
    border-radius: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 7px;
    color: white;
}

.subtask-check.checked {
    background: var(--accent);
    border-color: var(--accent);
}

.subtask-check.checked::after {
    content: "✓";
}

.progress-bar-container {
    height: 3px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 1.5px;
    overflow: hidden;
    width: 100%;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(to right, var(--accent) 0%, #0ea5e9 100%);
    width: 0%;
    transition: width 0.4s ease;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 6px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 9px;
    color: var(--text-secondary);
}

.avatar-badge {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    font-weight: 700;
    color: white;
}

/* Visual Widget: Mock Gantt Chart */
.gantt-widget {
    background: rgba(15, 23, 42, 0.4);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 16px;
}

.gantt-header {
    display: grid;
    grid-template-columns: 140px 1fr 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 12px;
}

.gantt-hdr-lbl {
    font-family: var(--font-heading);
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.gantt-hdr-col {
    text-align: center;
    font-size: 10px;
    color: var(--text-muted);
}

.gantt-rows {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.gantt-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    align-items: center;
}

.gantt-task-meta {
    display: flex;
    flex-direction: column;
}

.gantt-task-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.gantt-task-key {
    font-family: monospace;
    font-size: 9px;
    color: var(--text-muted);
}

.gantt-track {
    background: rgba(255, 255, 255, 0.02);
    height: 24px;
    border-radius: 4px;
    position: relative;
    border: 1px dashed rgba(255, 255, 255, 0.04);
}

.gantt-bar {
    position: absolute;
    height: 100%;
    border-radius: 4px;
    display: flex;
    align-items: center;
    padding-left: 10px;
    font-size: 10px;
    font-weight: 600;
    color: white;
}

.gantt-bar.bar-1 {
    left: 0%;
    width: 50%;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.gantt-bar.bar-2 {
    left: 25%;
    width: 60%;
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

.gantt-bar.bar-3 {
    left: 50%;
    width: 45%;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

/* Visual Widget: Mock Dashboard */
.chart-widget {
    background: rgba(15, 23, 42, 0.4);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chart-header-title {
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.chart-bars {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chart-row-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chart-row-header {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    font-weight: 500;
}

.chart-row-lbl {
    color: var(--text-secondary);
}

.chart-row-val {
    color: var(--text-primary);
    font-weight: 600;
}

.chart-row-track {
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
}

.chart-row-fill {
    height: 100%;
    border-radius: 4px;
}

.chart-fill-high {
    width: 25%;
    background: var(--pri-high);
    box-shadow: 0 0 10px rgba(248, 113, 113, 0.4);
}

.chart-fill-medium {
    width: 50%;
    background: var(--pri-med);
    box-shadow: 0 0 10px rgba(251, 146, 60, 0.4);
}

.chart-fill-low {
    width: 25%;
    background: var(--pri-low);
    box-shadow: 0 0 10px rgba(74, 222, 128, 0.4);
}

.chart-stacked-track {
    height: 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    display: flex;
    overflow: hidden;
}

.chart-stack-segment {
    height: 100%;
}

/* Visual Widget: Sprints Backlog */
.sprints-widget {
    background: rgba(15, 23, 42, 0.4);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.sprint-header-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 8px 12px;
    border-radius: 6px;
}

.sprint-block-title {
    font-size: 12px;
    font-weight: 700;
    color: #a5b4fc;
}

.sprint-block-dates {
    font-size: 10px;
    color: var(--text-secondary);
}

.sprint-widget-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sprint-widget-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sprint-wcard-title {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-primary);
}

.sprint-wcard-meta {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Architecture Card Highlight */
.architecture-section {
    padding: 80px 0;
}

.arch-card {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    padding: 48px;
    border-radius: var(--radius-lg);
    align-items: center;
}

.arch-content h2 {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 32px;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.arch-content p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 24px;
}

.arch-points {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.arch-point {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.point-icon {
    color: #4ade80;
    font-size: 18px;
    line-height: 1;
    margin-top: 2px;
}

.point-text h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.point-text p {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 4px 0 0 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.tech-item {
    background: rgba(0, 0, 0, 0.3);
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    text-align: center;
}

.tech-name {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.tech-desc {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* CTA Footer section */
.cta-footer {
    padding: 80px 0;
    text-align: center;
    background: radial-gradient(circle at 50% 100%, #161e38 0%, var(--bg-main) 80%);
    border-top: 1px solid var(--border-color);
}

.cta-title {
    font-family: var(--font-heading);
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.8px;
}

.cta-desc {
    color: var(--text-secondary);
    font-size: 16px;
    max-width: 500px;
    margin: 0 auto 32px auto;
}

.footer-bottom {
    margin-top: 80px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    font-size: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--text-primary);
}

#demoRequestForm input:focus {
    border-color: var(--accent) !important;
    background: rgba(0,0,0,0.4) !important;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .split-layout {
        flex-direction: column;
        align-items: stretch;
        gap: 32px;
    }
    .spec-info, .spec-visual {
        width: 100%;
    }
    .arch-card {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .hero-title {
        font-size: 44px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    .nav-links {
        display: none;
    }
}