/* ============================================
   REACH Roadmap - Styles
   ============================================ */

/* CSS Variables */
:root {
    --color-bg: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-tertiary: #1a1a1a;
    --color-text: #ffffff;
    --color-text-muted: #888888;
    --color-accent: #e0ff00;
    --color-border: #333333;
    --color-border-light: #444444;

    --color-status-todo: #666666;
    --color-status-progress: #f59e0b;
    --color-status-done: #10b981;

    --font-mono: 'JetBrains Mono', monospace;

    --transition-fast: 0.15s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    text-decoration: none;
    letter-spacing: 0.1em;
}

.nav-label {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    padding: 8rem 4rem 6rem;
    display: flex;
    align-items: center;
    background: var(--color-bg);
}

.hero-container {
    max-width: 1200px;
    width: 100%;
}

.hero-label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    text-transform: uppercase;
}

.hero-title {
    margin-bottom: 3rem;
}

.hero-title-line {
    display: block;
    font-size: clamp(4rem, 15vw, 12rem);
    font-weight: 700;
    line-height: 0.9;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    max-width: 500px;
    margin-bottom: 4rem;
}

.hero-stats {
    display: flex;
    gap: 4rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.stat-label {
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

/* ============================================
   Timeline Section
   ============================================ */
.timeline-section {
    padding: 6rem 4rem;
    background: var(--color-bg);
}

.timeline-container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.section-number {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.section-title {
    font-size: 2rem;
    font-weight: 500;
    color: var(--color-text);
}

.timeline-dates {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.timeline-date {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-date.end {
    text-align: right;
}

.date-label {
    font-size: 0.625rem;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.date-value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
}

.timeline-track {
    margin-bottom: 4rem;
}

.timeline-bar {
    background: var(--color-bg-tertiary);
    border-radius: 0;
    padding: 1.5rem 0;
    margin-bottom: 0;
}

.timeline-weeks {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
}

.timeline-week {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.timeline-week .week-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text);
}

.timeline-week .week-dot {
    width: 12px;
    height: 12px;
    background: var(--color-text);
    border-radius: 50%;
    border: 2px solid var(--color-bg-tertiary);
    transition: all var(--transition-fast);
}

.timeline-week.active .week-dot {
    background: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(224, 255, 0, 0.2);
}

.timeline-phases {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    border: 1px solid var(--color-border);
    border-top: none;
}

.phase-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.25rem;
    padding: 1rem 0.5rem;
    text-align: center;
    font-size: 0.5rem;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    text-transform: uppercase;
    border-right: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.phase-item span {
    display: block;
    line-height: 1.3;
}

.phase-item:last-child {
    border-right: none;
}

.timeline-stats {
    display: flex;
    justify-content: center;
    gap: 6rem;
}

.timeline-stats .stat-item {
    align-items: center;
    text-align: center;
}

.timeline-stats .stat-number {
    font-size: 4rem;
}

/* ============================================
   Summary Table Section
   ============================================ */
.summary-section {
    padding: 4rem;
    background: var(--color-bg);
}

.summary-container {
    max-width: 1400px;
    margin: 0 auto;
}

.summary-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--color-border);
}

.summary-table th,
.summary-table td {
    padding: 1.5rem;
    text-align: left;
    vertical-align: top;
    border: 1px solid var(--color-border);
}

.summary-header-cat {
    width: 120px;
    background: var(--color-bg-tertiary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.summary-header-month {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.summary-header-month.highlight {
    background: var(--color-accent);
    color: var(--color-bg);
}

.summary-cat {
    background: var(--color-bg-tertiary);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text);
    text-align: center;
}

.summary-content {
    font-size: 0.8125rem;
    line-height: 1.6;
}

.summary-content.highlight {
    background: var(--color-accent);
    color: var(--color-bg);
}

.summary-content p {
    margin: 0 0 0.75rem 0;
}

.summary-content p:last-child {
    margin-bottom: 0;
}

.summary-content ul {
    margin: 0;
    padding-left: 1.25rem;
}

.summary-content li {
    margin-bottom: 0.5rem;
}

.summary-content li:last-child {
    margin-bottom: 0;
}

.summary-content strong {
    text-decoration: underline;
}

/* ============================================
   Onboarding Section
   ============================================ */
.onboarding-section {
    padding: 6rem 4rem;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.onboarding-container {
    max-width: 1400px;
    margin: 0 auto;
}

.onboarding-description {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
}

.onboarding-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.onboarding-category {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.onboarding-category-title {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.onboarding-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.onboarding-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.onboarding-btn:hover {
    border-color: var(--color-accent);
    background: rgba(224, 255, 0, 0.05);
}

.onboarding-btn:hover .btn-icon {
    color: var(--color-accent);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.btn-text {
    flex: 1;
}

/* ============================================
   Roadmap Header Section
   ============================================ */
.roadmap-header-section {
    padding: 4rem 4rem 2rem;
    background: var(--color-bg);
}

.roadmap-header-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
}

/* ============================================
   Roadmap Table
   ============================================ */
.roadmap-section {
    padding: 0 4rem 4rem;
}

.roadmap-container {
    max-width: 1600px;
    margin: 0 auto;
}

.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-secondary);
}

.roadmap-table {
    width: 100%;
    min-width: 1200px;
    border-collapse: collapse;
}

/* Table Headers */
.roadmap-table thead {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--color-bg-tertiary);
}

.roadmap-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
}

.category-header {
    width: 180px;
    color: var(--color-text-muted);
}

.week-header {
    text-align: center;
    color: var(--color-text);
}

.week-number {
    display: block;
    font-size: 1rem;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.week-dates {
    display: block;
    font-size: 0.625rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

/* Table Body */
.roadmap-table tbody tr {
    transition: background-color var(--transition-fast);
}

.roadmap-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.roadmap-table td {
    padding: 0;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

/* Category Cell */
.category-cell {
    padding: 1rem !important;
    background: var(--color-bg-tertiary);
    border-right: 1px solid var(--color-border);
}

.category-name {
    font-size: 0.8125rem;
    font-weight: 500;
}

/* Task Cell */
.task-cell {
    padding: 0.75rem !important;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-right: 1px solid var(--color-border);
    position: relative;
}

.task-cell:last-child {
    border-right: none;
}

.task-cell:hover {
    background: rgba(224, 255, 0, 0.05);
}

.task-cell:hover .task-content {
    border-color: var(--color-accent);
}

.task-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--color-bg-tertiary);
    border-radius: 6px;
    border: 1px solid var(--color-border);
    min-height: 60px;
    transition: all var(--transition-fast);
}

.task-title {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text);
}

.task-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    align-self: flex-start;
}

.status-todo {
    background: var(--color-status-todo);
}

.status-in-progress {
    background: var(--color-status-progress);
    animation: pulse 2s infinite;
}

.status-done {
    background: var(--color-status-done);
}

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

/* ============================================
   Legend
   ============================================ */
.legend-section {
    padding: 2rem 4rem;
}

.legend-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-status {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 4rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.footer-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.1em;
}

.footer-tagline {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.cta-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--color-accent);
    color: var(--color-bg);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.cta-button:hover {
    background: var(--color-text);
    transform: translateY(-2px);
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-smooth);
    padding: 2rem;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-bounce);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text);
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.modal-header {
    padding: 1.5rem 1.5rem 0;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.modal-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    background: rgba(224, 255, 0, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
}

.modal-week {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.modal-title {
    padding: 1rem 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-content {
    padding: 0 1.5rem;
    overflow-y: auto;
    flex: 1;
}

/* Accordion */
.accordion {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.accordion-item {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1rem;
    background: transparent;
    border: none;
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.accordion-header:hover {
    background: rgba(255, 255, 255, 0.05);
}

.accordion-icon {
    font-size: 0.75rem;
    transition: transform var(--transition-smooth);
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-smooth);
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}

.accordion-body {
    padding: 0 1rem 1rem;
}

.accordion-body ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.accordion-body li {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    padding-left: 1rem;
    position: relative;
}

.accordion-body li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-tertiary);
}

.modal-status {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-select {
    padding: 0.5rem 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.status-select:hover,
.status-select:focus {
    border-color: var(--color-accent);
    outline: none;
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

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

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .hero {
        padding: 6rem 2rem 4rem;
    }

    .hero-title-line {
        font-size: clamp(3rem, 12vw, 8rem);
    }

    .hero-stats {
        gap: 3rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .timeline-section {
        padding: 4rem 2rem;
    }

    .timeline-stats {
        gap: 4rem;
    }

    .timeline-stats .stat-number {
        font-size: 3rem;
    }

    .phase-item {
        font-size: 0.5rem;
        padding: 0.75rem 0.25rem;
    }

    .summary-section {
        padding: 3rem 2rem;
    }

    .summary-table th,
    .summary-table td {
        padding: 1rem;
    }

    .onboarding-section {
        padding: 4rem 2rem;
    }

    .onboarding-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 1rem;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
        min-height: auto;
    }

    .hero-label {
        font-size: 0.625rem;
        margin-bottom: 2rem;
    }

    .hero-title-line {
        font-size: clamp(2.5rem, 15vw, 5rem);
    }

    .hero-subtitle {
        font-size: 0.875rem;
        margin-bottom: 3rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .timeline-section {
        padding: 3rem 1.5rem;
    }

    .section-header {
        flex-direction: column;
        gap: 0.5rem;
        margin-bottom: 2rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .timeline-dates {
        flex-direction: column;
        gap: 1rem;
    }

    .timeline-date.end {
        text-align: left;
    }

    .timeline-bar {
        overflow-x: auto;
        padding: 1rem;
    }

    .timeline-weeks {
        min-width: 600px;
    }

    .timeline-phases {
        display: none;
    }

    .timeline-stats {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }

    .timeline-stats .stat-number {
        font-size: 2.5rem;
    }

    .summary-section {
        padding: 2rem 1rem;
        overflow-x: auto;
    }

    .summary-table {
        min-width: 700px;
    }

    .summary-table th,
    .summary-table td {
        padding: 0.75rem;
        font-size: 0.75rem;
    }

    .onboarding-section {
        padding: 3rem 1.5rem;
    }

    .onboarding-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .onboarding-btn {
        padding: 0.875rem 1rem;
    }

    .roadmap-header-section {
        padding: 2rem 1.5rem 1rem;
    }

    .roadmap-section,
    .legend-section {
        padding: 1rem;
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .modal {
        max-height: 90vh;
    }
}

/* ============================================
   Focus States (Accessibility)
   ============================================ */
.task-cell:focus,
.accordion-header:focus,
.modal-close:focus,
.cta-button:focus,
.status-select:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--color-accent);
    color: var(--color-bg);
    padding: 0.5rem 1rem;
    z-index: 1000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}