/* ============================================
   UNCERTAIN SYSTEMS - COMPONENTS
   Reusable UI components
   ============================================ */

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--gold);
    color: var(--deep-indigo);
    border: 1px solid var(--gold);
}

.btn-primary:hover {
    background: var(--bronze);
    border-color: var(--bronze);
    box-shadow: 0 0 30px var(--gold-light);
}

.btn-secondary {
    background: transparent;
    color: var(--marble-white);
    border: 1px solid rgba(245, 245, 245, 0.3);
}

.btn-secondary:hover {
    background: rgba(245, 245, 245, 0.1);
    border-color: var(--marble-white);
}

.btn-icon {
    width: 18px;
    height: 18px;
}

/* ============================================
   PROJECT CARDS (Stack Section)
   ============================================ */
.project-card {
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--gold);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(212, 175, 55, 0.1);
}

.project-card:hover::before {
    opacity: 1;
}

.project-card-featured {
    border-color: var(--gold);
}

.project-card-featured::before {
    opacity: 0.5;
}

/* Card glow effect */
.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--cyan-glow) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

.project-card:hover .card-glow {
    opacity: 0.3;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.card-icon {
    width: 48px;
    height: 48px;
    color: var(--gold);
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.card-label {
    font-family: var(--font-body);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--neon-cyan);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(0, 255, 255, 0.1);
    border-radius: var(--radius-full);
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--marble-white);
    margin-bottom: var(--space-xs);
}

.card-tagline {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--gold);
    margin-bottom: var(--space-md);
}

.card-description {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--marble-white);
    opacity: 0.7;
    margin-bottom: var(--space-lg);
}

.card-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs) var(--space-md);
    margin-bottom: var(--space-xl);
}

.card-features li {
    font-size: 0.8125rem;
    color: var(--marble-white);
    opacity: 0.6;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.card-features li::before {
    content: '◈';
    font-size: 0.625rem;
    color: var(--neon-cyan);
}

.card-links {
    display: flex;
    gap: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
}

.card-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.card-link-primary {
    color: var(--gold);
}

.card-link-primary:hover {
    color: var(--marble-white);
}

.card-link-primary:hover svg {
    transform: translateX(4px);
}

.card-link-secondary {
    color: var(--marble-white);
    opacity: 0.5;
}

.card-link-secondary:hover {
    opacity: 1;
}

/* ============================================
   PROJECT PAGE HERO
   ============================================ */
.project-page {
    background: var(--deep-indigo);
}

.project-hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.project-hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
}

/* OpenCompanion - warm orb theme */
.project-hero-companion .hero-gradient {
    background: 
        radial-gradient(ellipse at 70% 30%, rgba(212, 175, 55, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 30% 70%, rgba(0, 255, 255, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, var(--deep-indigo) 0%, var(--sea-indigo) 100%);
}

/* OpenLesson - knowledge/book theme */
.project-hero-lesson .hero-gradient {
    background: 
        radial-gradient(ellipse at 50% 0%, rgba(34, 139, 34, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, var(--deep-indigo) 0%, var(--sea-indigo) 100%);
}

/* Omega Quest - network/collective theme */
.project-hero-quest .hero-gradient {
    background: 
        radial-gradient(ellipse at 50% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 60%),
        linear-gradient(180deg, var(--deep-indigo) 0%, var(--sea-indigo) 100%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L30 60M0 30L60 30' stroke='%23D4AF37' stroke-opacity='0.03' stroke-width='1'/%3E%3C/svg%3E");
    background-size: 60px 60px;
}

.project-hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    padding: var(--space-2xl) var(--space-lg);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--marble-white);
    opacity: 0.6;
    margin-bottom: var(--space-lg);
    transition: all var(--transition-fast);
}

.back-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.back-link:hover {
    opacity: 1;
    color: var(--gold);
}

.back-link:hover svg {
    transform: translateX(-4px);
}

.project-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--neon-cyan);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(0, 255, 255, 0.1);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

.project-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    color: var(--marble-white);
    margin-bottom: var(--space-sm);
}

.project-tagline {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--gold);
}

.project-hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    pointer-events: none;
}

@media (max-width: 1024px) {
    .project-hero-visual {
        opacity: 0.3;
        right: -10%;
    }
}

@media (max-width: 640px) {
    .project-hero-visual {
        display: none;
    }
}

/* OpenCompanion visual - state graph */
.visual-ring {
    position: absolute;
    inset: -20px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    animation: rotate-slow 30s linear infinite;
}

@keyframes rotate-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.visual-core {
    width: 200px;
    height: 200px;
    animation: pulse-gentle 4s ease-in-out infinite;
}

@keyframes pulse-gentle {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

/* OpenLesson visual - book */
.visual-book {
    position: relative;
    width: 200px;
    height: 250px;
    perspective: 1000px;
}

.book-page {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--marble-white) 0%, rgba(245, 245, 245, 0.9) 100%);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    transform-origin: left center;
}

.book-page-1 {
    transform: rotateY(-5deg);
    z-index: 3;
}

.book-page-2 {
    transform: rotateY(-10deg);
    z-index: 2;
    opacity: 0.8;
}

.book-page-3 {
    transform: rotateY(-15deg);
    z-index: 1;
    opacity: 0.6;
}

.book-spine {
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 100%;
    background: var(--gold);
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.book-glow {
    position: absolute;
    inset: -30px;
    background: radial-gradient(ellipse, var(--gold-light) 0%, transparent 70%);
    animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* Omega Quest visual - geometric */
.visual-omega {
    width: 200px;
    height: 200px;
    animation: float 6s ease-in-out infinite;
}

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

/* Hero orbs for OpenCompanion */
.hero-orbs {
    position: absolute;
    inset: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--neon-cyan), transparent);
    opacity: 0.4;
    animation: orb-float 8s ease-in-out infinite;
}

.orb-1 {
    width: 100px;
    height: 100px;
    top: 20%;
    right: 25%;
    animation-delay: 0s;
}

.orb-2 {
    width: 60px;
    height: 60px;
    top: 60%;
    right: 35%;
    animation-delay: 2s;
}

.orb-3 {
    width: 80px;
    height: 80px;
    top: 40%;
    right: 15%;
    animation-delay: 4s;
}

@keyframes orb-float {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.4; }
    50% { transform: translateY(-20px) scale(1.05); opacity: 0.6; }
}

/* Hero particles for OpenLesson */
.hero-particles {
    position: absolute;
    inset: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--gold);
    border-radius: 50%;
    animation: particle-rise 10s linear infinite;
}

.particle-1 { left: 60%; animation-delay: 0s; }
.particle-2 { left: 65%; animation-delay: 2s; }
.particle-3 { left: 70%; animation-delay: 4s; }
.particle-4 { left: 75%; animation-delay: 6s; }
.particle-5 { left: 80%; animation-delay: 8s; }

@keyframes particle-rise {
    0% { 
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
        transform: translateY(90vh) scale(1);
    }
    90% {
        opacity: 1;
    }
    100% { 
        transform: translateY(-10vh) scale(0);
        opacity: 0;
    }
}

/* Hero network for Omega Quest */
.hero-network {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    max-width: 500px;
    opacity: 0.6;
}

.network-svg {
    width: 100%;
    height: auto;
}

.network-svg circle {
    animation: node-pulse 3s ease-in-out infinite;
}

.network-svg circle:nth-child(odd) {
    animation-delay: 0.5s;
}

@keyframes node-pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* ============================================
   PROJECT DESCRIPTION SECTION
   ============================================ */
.project-description {
    background: var(--marble-white);
    padding: var(--space-4xl) 0;
}

.description-content {
    max-width: 800px;
    margin: 0 auto var(--space-3xl);
}

.description-title {
    color: var(--sea-indigo);
    margin-bottom: var(--space-lg);
}

.description-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--sea-indigo);
    margin-bottom: var(--space-md);
}

.description-text strong {
    color: var(--sea-indigo);
    font-weight: 600;
}

.description-text em {
    color: var(--gold);
    font-style: italic;
}

.description-highlight {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    padding: var(--space-xl);
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.03) 0%, rgba(212, 175, 55, 0.05) 100%);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-lg);
}

.highlight-icon {
    font-size: 2rem;
    color: var(--gold);
    margin-bottom: var(--space-md);
}

.highlight-text {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-style: italic;
    color: var(--sea-indigo);
    line-height: 1.8;
}

/* ============================================
   PROJECT FEATURES SECTION
   ============================================ */
.project-features {
    background: 
        linear-gradient(180deg, var(--marble-white) 0%, rgba(240, 240, 245, 1) 100%);
    padding: var(--space-4xl) 0;
}

.project-features .section-title {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 51, 102, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px var(--shadow-dark);
    border-color: var(--gold);
}

.feature-icon {
    width: 48px;
    height: 48px;
    color: var(--sea-indigo);
    margin-bottom: var(--space-md);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    color: var(--sea-indigo);
    margin-bottom: var(--space-sm);
}

.feature-text {
    font-size: 0.9375rem;
    color: var(--slate-gray);
    line-height: 1.7;
}

/* ============================================
   CODE BLOCK
   ============================================ */
.project-code {
    background: var(--sea-indigo);
    padding: var(--space-4xl) 0;
}

.project-code .section-title {
    text-align: center;
    color: var(--marble-white);
    margin-bottom: var(--space-sm);
}

.project-code .section-subtitle {
    text-align: center;
    color: var(--marble-white);
    opacity: 0.6;
    margin-bottom: var(--space-2xl);
}

.code-block {
    max-width: 700px;
    margin: 0 auto;
    background: var(--deep-indigo);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.code-filename {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    color: var(--marble-white);
    opacity: 0.8;
}

.code-lang {
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--neon-cyan);
    padding: 2px 8px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: var(--radius-sm);
}

.code-content {
    padding: var(--space-lg);
    overflow-x: auto;
}

.code-content code {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--marble-white);
    white-space: pre;
}

/* ============================================
   FLOW/STEPS SECTION
   ============================================ */
.project-flow {
    background: var(--marble-white);
    padding: var(--space-4xl) 0;
}

.project-flow .section-title {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.flow-steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    max-width: 600px;
    margin: 0 auto;
}

.flow-step {
    text-align: center;
    padding: var(--space-lg);
}

.step-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: var(--space-sm);
    opacity: 0.5;
}

.step-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--sea-indigo);
    margin-bottom: var(--space-sm);
}

.step-text {
    font-size: 0.9375rem;
    color: var(--slate-gray);
    line-height: 1.7;
}

.flow-connector {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, var(--gold) 0%, var(--gold) 50%, transparent 100%);
    opacity: 0.3;
}

/* ============================================
   EXPERIMENT SECTION (Omega Quest)
   ============================================ */
.project-experiment {
    background: 
        linear-gradient(180deg, rgba(240, 240, 245, 1) 0%, var(--marble-white) 100%);
    padding: var(--space-4xl) 0;
}

.project-experiment .section-title {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.experiment-content {
    display: grid;
    gap: var(--space-3xl);
}

.experiment-text {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.experiment-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--sea-indigo);
    margin-bottom: var(--space-md);
}

.experiment-text em {
    color: var(--gold);
    font-style: italic;
}

.experiment-visual {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.experiment-card {
    text-align: center;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 51, 102, 0.1);
    border-radius: var(--radius-lg);
    min-width: 150px;
}

.experiment-card h3 {
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--sea-indigo);
    margin-bottom: var(--space-xs);
}

.experiment-card p {
    font-size: 0.75rem;
    color: var(--slate-gray);
}

.experiment-icon {
    font-size: 1.5rem;
    color: var(--gold);
    margin-bottom: var(--space-sm);
}

.experiment-card-result {
    background: var(--sea-indigo);
    border-color: var(--gold);
}

.experiment-card-result h3,
.experiment-card-result p {
    color: var(--marble-white);
}

.experiment-card-result .experiment-icon {
    color: var(--gold);
}

.experiment-plus,
.experiment-equals {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--gold);
    opacity: 0.5;
}

@media (max-width: 768px) {
    .experiment-visual {
        flex-direction: column;
    }
    
    .experiment-plus,
    .experiment-equals {
        transform: rotate(90deg);
    }
}

/* ============================================
   CTA SECTION
   ============================================ */
.project-cta {
    background: var(--sea-indigo);
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.project-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 30% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    color: var(--marble-white);
    margin-bottom: var(--space-md);
}

.cta-text {
    font-size: 1.125rem;
    color: var(--marble-white);
    opacity: 0.8;
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
}

/* ============================================
   OTHER PROJECTS SECTION
   ============================================ */
.other-projects {
    background: var(--deep-indigo);
    padding: var(--space-3xl) 0;
}

.other-projects .section-title {
    text-align: center;
    color: var(--marble-white);
    margin-bottom: var(--space-xl);
}

.projects-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    max-width: 700px;
    margin: 0 auto;
}

.mini-card {
    display: block;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.mini-card:hover {
    transform: translateY(-4px);
    border-color: var(--gold);
    background: rgba(255, 255, 255, 0.05);
}

.mini-card-label {
    display: block;
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--neon-cyan);
    margin-bottom: var(--space-xs);
}

.mini-card-title {
    display: block;
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--marble-white);
    margin-bottom: var(--space-xs);
}

.mini-card-tagline {
    display: block;
    font-size: 0.875rem;
    color: var(--gold);
}