@import url('variables.css');
@import url('components/sidebar.css');
@import url('components/callouts.css');
@import url('components/code-blocks.css');

/* ==================== RESET & BASE ==================== */

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

body {
    font-family: var(--font-family-sans);
    background-color: var(--p3-bg-primary);
    color: var(--p3-text-primary);
    line-height: 1.7;
    font-size: var(--font-size-base);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow: hidden;
    height: 100vh;
    position: relative;
}

/* Grid pattern background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(245, 158, 11, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 158, 11, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

/* Gradient overlays */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 0% 0%, rgba(245, 158, 11, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 100% 100%, rgba(217, 119, 6, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ==================== APP LAYOUT ==================== */

.app-container {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: 100vh;
    width: 100vw;
    position: relative;
    z-index: 1;
}

/* ==================== SIDEBAR ==================== */

.sidebar {
    background-color: var(--p3-bg-glass);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--p3-border);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    border-bottom: 1px solid var(--p3-border);
    background: linear-gradient(180deg, var(--p3-bg-widget), transparent);
}

.phase-badge {
    background: linear-gradient(135deg, var(--p3-accent), var(--p3-accent-secondary));
    color: var(--p3-bg-primary);
    padding: 4px 10px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-family: var(--font-family-mono);
}

.app-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--p3-text-primary);
}

/* ==================== PHASE SWITCHER - COMMAND TABS ==================== */

.phase-switcher {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px var(--space-lg);
    border-bottom: 1px solid var(--p3-border);
    background: var(--p3-bg-widget);
}

.phase-home {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.2s;
    background: var(--p3-bg-secondary);
    border: 1px solid var(--p3-border);
}

.phase-home:hover {
    background: var(--p3-accent-subtle);
    border-color: var(--p3-accent);
    box-shadow: 0 0 12px var(--p3-accent-glow);
}

.phase-dot {
    position: relative;
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.2s;
    background: var(--p3-bg-secondary);
    border: 1px solid var(--p3-border);
}

.phase-dot[data-phase="1"] { --dot-color: #00d4ff; }
.phase-dot[data-phase="2"] { --dot-color: #00ffaa; }
.phase-dot[data-phase="3"] { --dot-color: #f59e0b; }
.phase-dot[data-phase="4"] { --dot-color: #a855f7; }

.phase-dot:hover {
    border-color: var(--dot-color);
    background: var(--p3-bg-primary);
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.2);
}

.phase-dot.active {
    border-color: var(--dot-color);
    background: var(--dot-color);
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
}

.phase-dot.active .phase-number { color: var(--p3-bg-primary); }

/* Status indicator on phase dots */
.phase-dot::before {
    content: '';
    position: absolute;
    top: 4px;
    right: 4px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--p3-text-muted);
}

.phase-dot.active::before {
    background: var(--p3-bg-primary);
}

.phase-dot.completed::before {
    background: var(--p3-success);
    box-shadow: 0 0 6px var(--p3-success-glow);
    animation: statusPulse 2s ease-in-out infinite;
}

.phase-number {
    font-weight: 700;
    font-size: 1rem;
    color: var(--dot-color);
    line-height: 1;
    font-family: var(--font-family-mono);
}

.phase-progress {
    font-size: 0.55rem;
    color: var(--p3-text-secondary);
    margin-top: 2px;
    font-family: var(--font-family-mono);
}

.phase-dot.active .phase-progress { color: rgba(15, 15, 15, 0.8); }

.back-to-roadmap {
    display: block;
    padding: var(--space-sm) var(--space-lg);
    color: var(--p3-text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--p3-border);
    transition: all 0.2s;
    font-family: var(--font-family-mono);
}

.back-to-roadmap:hover {
    background: var(--p3-accent-subtle);
    color: var(--p3-accent);
}

.search-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: var(--space-md) var(--space-lg);
    padding: 10px 14px;
    background: var(--p3-bg-secondary);
    border: 1px solid var(--p3-border);
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-family-mono);
    font-size: 0.85rem;
    color: var(--p3-text-secondary);
}

.search-trigger:hover {
    border-color: var(--p3-accent);
    background: var(--p3-bg-primary);
    box-shadow: 0 0 12px var(--p3-accent-glow);
}

.search-trigger-text { flex: 1; text-align: left; }

.search-trigger-kbd {
    background: var(--p3-bg-primary);
    padding: 2px 6px;
    font-size: 0.7rem;
    border: 1px solid var(--p3-border);
    font-family: var(--font-family-mono);
}

/* Library Button */
.library-trigger {
    margin-top: 0;
}

.library-count {
    background: linear-gradient(135deg, var(--p3-accent), var(--p3-accent-secondary));
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--p3-bg-primary);
    box-shadow: 0 0 8px var(--p3-accent-glow);
    font-family: var(--font-family-mono);
}

.progress-container { padding: 0 var(--space-lg); margin-bottom: var(--space-md); }

.progress-bar {
    height: 4px;
    background: var(--p3-border);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--p3-accent), var(--p3-accent-secondary));
    transition: width 0.5s ease;
    width: 0%;
    box-shadow: 0 0 10px var(--p3-accent-glow);
}

.progress-text {
    display: block;
    font-size: 0.7rem;
    color: var(--p3-text-secondary);
    margin-top: 6px;
    text-align: right;
    font-family: var(--font-family-mono);
    text-transform: uppercase;
}

.sidebar-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--p3-border);
    margin-top: auto;
    background: var(--p3-bg-widget);
}

.footer-info {
    font-size: 0.75rem;
    color: var(--p3-text-secondary);
    margin-bottom: var(--space-md);
    font-family: var(--font-family-mono);
}

.theme-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: none;
    border: 1px solid var(--p3-border);
    padding: 8px 12px;
    cursor: pointer;
    color: var(--p3-text-secondary);
    font-family: var(--font-family-mono);
    font-size: 0.8rem;
    transition: all 0.2s;
    width: 100%;
}

.theme-btn:hover {
    background: var(--p3-accent-subtle);
    border-color: var(--p3-accent);
    color: var(--p3-accent);
}

/* ==================== MAIN CONTENT ==================== */

.main-content {
    overflow-y: auto;
    padding: var(--space-xl) var(--space-xxl);
    position: relative;
    scroll-behavior: smooth;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 50px 120px;
    background: var(--p3-bg-card);
    border: 1px solid var(--p3-border);
    box-shadow: var(--shadow-md);
    position: relative;
}

/* Command header */
.content-wrapper::before {
    content: '// ACTIVE MODULE';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 8px 20px;
    background: var(--p3-bg-widget);
    border-bottom: 1px solid var(--p3-border);
    font-size: 0.65rem;
    color: var(--p3-accent);
    font-family: var(--font-family-mono);
    letter-spacing: 0.1em;
}

.loading-state { text-align: center; padding: 60px 20px; color: var(--p3-text-secondary); }

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 2px solid var(--p3-border);
    border-top-color: var(--p3-accent);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

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

/* ==================== TYPOGRAPHY ==================== */

h1, h2, h3, h4 {
    color: var(--p3-text-primary);
    margin-bottom: var(--space-md);
    margin-top: var(--space-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.25rem;
    color: var(--p3-accent);
    text-shadow: 0 0 30px var(--p3-accent-glow);
    margin-top: 40px;
    position: relative;
    padding-left: 20px;
}

h1::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--p3-accent);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

h2 {
    font-size: 1.5rem;
    color: var(--p3-text-primary);
    border-bottom: 1px solid var(--p3-border);
    padding-bottom: var(--space-sm);
    margin-top: 50px;
}

h3 { font-size: 1.15rem; margin-top: 30px; color: var(--p3-accent-secondary); }

p { margin-bottom: var(--space-md); }
ul, ol { margin-bottom: var(--space-md); padding-left: var(--space-lg); }
li { margin-bottom: var(--space-sm); }

a {
    color: var(--p3-accent);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

a:hover {
    color: var(--p3-accent-secondary);
    text-shadow: 0 0 10px var(--p3-accent-glow);
}

kbd {
    display: inline-block;
    padding: 3px 8px;
    font-family: var(--font-family-mono);
    font-size: 0.8em;
    background: var(--p3-bg-widget);
    border: 1px solid var(--p3-border);
    color: var(--p3-accent);
}

/* ==================== SECTION TOC ==================== */

.section-toc {
    background: var(--p3-bg-widget);
    border: 1px solid var(--p3-border);
    padding: var(--space-md);
    margin-bottom: var(--space-xl);
    position: relative;
}

.section-toc::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--p3-accent);
}

.toc-header {
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--p3-accent);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-family: var(--font-family-mono);
}

.toc-links { display: flex; flex-wrap: wrap; gap: var(--space-sm); }

.toc-link {
    display: inline-block;
    padding: 6px 12px;
    background: var(--p3-bg-secondary);
    border: 1px solid var(--p3-border);
    font-size: 0.85rem;
    color: var(--p3-text-secondary);
    transition: all 0.2s;
    font-family: var(--font-family-mono);
}

.toc-link:hover {
    background: var(--p3-accent);
    color: var(--p3-bg-primary);
    border-color: var(--p3-accent);
    text-decoration: none;
    box-shadow: 0 0 12px var(--p3-accent-glow);
}

/* ==================== NAVIGATION FOOTER ==================== */

.nav-footer {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    margin-top: 60px;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--p3-border);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--p3-bg-widget);
    border: 1px solid var(--p3-border);
    cursor: pointer;
    transition: all 0.2s;
    max-width: 45%;
    font-family: inherit;
}

.nav-btn:hover {
    border-color: var(--p3-accent);
    background: var(--p3-accent-subtle);
    box-shadow: 0 0 20px var(--p3-accent-glow);
}

.nav-btn-arrow { font-size: 1.5rem; color: var(--p3-accent); }
.nav-btn-text { display: flex; flex-direction: column; text-align: left; }
.nav-btn-next .nav-btn-text { text-align: right; }
.nav-btn-label {
    font-size: 0.7rem;
    color: var(--p3-text-muted);
    text-transform: uppercase;
    font-family: var(--font-family-mono);
    letter-spacing: 0.05em;
}
.nav-btn-title { font-weight: 600; color: var(--p3-text-primary); font-size: 0.9rem; }

/* ==================== CODE WRAPPER ==================== */

.code-wrapper { position: relative; margin: var(--space-lg) 0; }

.copy-btn {
    position: absolute;
    top: 36px;
    right: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: var(--p3-bg-widget);
    border: 1px solid var(--p3-border);
    cursor: pointer;
    font-size: 0.75rem;
    font-family: var(--font-family-mono);
    color: var(--p3-text-secondary);
    transition: all 0.2s;
    z-index: 10;
}

.copy-btn:hover {
    background: var(--p3-accent);
    color: var(--p3-bg-primary);
    border-color: var(--p3-accent);
}
.copy-btn.copied {
    background: var(--p3-success);
    color: var(--p3-bg-primary);
    border-color: var(--p3-success);
}

/* ==================== VISUAL PLACEHOLDER ==================== */

.visual-placeholder {
    border: 1px dashed var(--p3-border);
    background: var(--p3-bg-widget);
    padding: 50px 40px;
    text-align: center;
    margin: 30px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    transition: all 0.3s;
}

.visual-placeholder:hover {
    border-color: var(--p3-accent);
    box-shadow: 0 0 20px var(--p3-accent-glow);
}
.visual-placeholder .icon { font-size: 48px; opacity: 0.6; }
.visual-placeholder .desc { font-weight: 600; color: var(--p3-text-primary); font-size: 1.1rem; }
.visual-placeholder .specs {
    font-size: 0.8rem;
    color: var(--p3-text-muted);
    font-family: var(--font-family-mono);
}

/* ==================== BUTTONS ==================== */

.button {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--p3-accent), var(--p3-accent-secondary));
    color: var(--p3-bg-primary) !important;
    box-shadow: 0 0 20px var(--p3-accent-glow);
    transition: all 0.2s;
    text-decoration: none !important;
    font-weight: 600;
    font-family: var(--font-family-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--p3-accent-glow);
}

/* ==================== BACK TO TOP ==================== */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--p3-accent);
    color: var(--p3-bg-primary);
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: 0 0 20px var(--p3-accent-glow);
    z-index: 500;
}

.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover {
    background: var(--p3-accent-secondary);
    transform: translateY(-3px);
}

/* ==================== TOAST ==================== */

.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--p3-success);
    color: var(--p3-bg-primary);
    padding: 14px 28px;
    font-weight: 600;
    box-shadow: 0 0 20px var(--p3-success-glow);
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    font-family: var(--font-family-mono);
}

.toast.visible { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ==================== SEARCH MODAL ==================== */

.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 15, 15, 0.9);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    padding-top: 100px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
}

.search-modal.visible { opacity: 1; visibility: visible; }

.search-container {
    width: 560px;
    max-width: 90%;
    background: var(--p3-bg-secondary);
    border: 1px solid var(--p3-border);
    box-shadow: 0 0 40px var(--p3-accent-glow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    max-height: 60vh;
    transform: translateY(-20px);
    transition: transform 0.2s;
}

.search-modal.visible .search-container { transform: translateY(0); }

.search-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--p3-border);
    background: var(--p3-bg-widget);
}

.search-icon { font-size: 1.2rem; color: var(--p3-accent); }

.search-header input {
    flex: 1;
    padding: 10px;
    font-size: 1rem;
    border: none;
    background: transparent;
    color: var(--p3-text-primary);
    outline: none;
    font-family: var(--font-family-mono);
}

.search-hint {
    font-size: 0.7rem;
    padding: 4px 8px;
    font-family: var(--font-family-mono);
    color: var(--p3-text-muted);
}
.search-results { overflow-y: auto; flex: 1; }
.search-empty { padding: var(--space-lg); text-align: center; color: var(--p3-text-secondary); }

.search-item {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--p3-border);
    cursor: pointer;
    transition: all 0.2s;
}

.search-item:hover {
    background: var(--p3-accent-subtle);
    border-left: 3px solid var(--p3-accent);
}
.search-item-title {
    font-weight: 600;
    color: var(--p3-accent);
    margin-bottom: 4px;
}
.search-item-snippet { font-size: 0.9rem; color: var(--p3-text-secondary); }

/* ==================== ONBOARDING ==================== */

.onboarding-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.onboarding-overlay.visible { opacity: 1; }

.onboarding-modal {
    background: var(--p3-bg-secondary);
    border: 1px solid var(--p3-border);
    padding: 40px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: 0 0 60px var(--p3-accent-glow);
    transform: scale(0.9);
    transition: transform 0.3s;
}

.onboarding-overlay.visible .onboarding-modal { transform: scale(1); }

.onboarding-logo { width: 80px; height: auto; margin-bottom: var(--space-md); }

.onboarding-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--p3-accent);
    text-shadow: 0 0 20px var(--p3-accent-glow);
}

.onboarding-content { margin: var(--space-xl) 0; text-align: left; }
.onboarding-content > p { text-align: center; color: var(--p3-text-secondary); }
.onboarding-tips { margin-top: var(--space-lg); }

.onboarding-tip {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--p3-bg-widget);
    border: 1px solid var(--p3-border);
    margin-bottom: var(--space-sm);
}

.onboarding-tip .tip-icon { font-size: 1.5rem; }
.onboarding-tip strong { display: block; margin-bottom: 4px; color: var(--p3-accent); }
.onboarding-tip p { margin: 0; font-size: 0.9rem; color: var(--p3-text-secondary); }

.onboarding-btn {
    display: inline-block;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--p3-accent), var(--p3-accent-secondary));
    color: var(--p3-bg-primary);
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-family-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.onboarding-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--p3-accent-glow);
}

/* ==================== MOBILE ==================== */

.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--p3-bg-glass);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--p3-border);
    z-index: 200;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-md);
}

.mobile-menu-btn {
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--p3-accent);
}
.mobile-title { font-weight: 600; font-size: 1rem; color: var(--p3-accent); }
.search-btn {
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--p3-accent);
}

.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 15, 15, 0.8);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.mobile-overlay.visible { opacity: 1; visibility: visible; }

.fade-in { animation: fadeIn 0.3s ease-in-out; }

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

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

@media (max-width: 768px) {
    .app-container { grid-template-columns: 1fr; }
    .mobile-header { display: flex; }
    .main-content { padding: 80px var(--space-md) var(--space-md); }
    .content-wrapper { padding: 50px 24px 24px; }
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 300px;
        height: 100%;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    .sidebar.mobile-open { transform: translateX(0); }
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    .nav-footer { flex-direction: column; }
    .nav-btn { max-width: 100%; }
}

/* ==================== REDUCED MOTION ==================== */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}