/* =====================================================
   Decoded Lemon — Design System
   ===================================================== */

:root {
    --bg:       #ffffff;
    --bg-2:     #f9f9fb;
    --bg-3:     #f2f2f5;
    --border:   #e4e4e7;
    --text:     #09090b;
    --text-2:   #52525b;
    --text-3:   #a1a1aa;
    --accent:   #d4ff00;
    --acc-text: #1a3000;

    --nav-h:    68px;
    --max-w:    1120px;
    --ease:     cubic-bezier(0.4, 0, 0.2, 1);
    --dur:      0.22s;

    --r-sm: 8px;
    --r:    12px;
    --r-lg: 16px;
    --r-xl: 24px;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow:    0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 12px 32px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.10), 0 24px 64px rgba(0,0,0,0.08);
}

body.dark-mode {
    --bg:     #09090b;
    --bg-2:   #111116;
    --bg-3:   #18181d;
    --border: #27272a;
    --text:   #fafafa;
    --text-2: #a1a1aa;
    --text-3: #52525b;
    --accent: #ccff00;
    --acc-text: #0d2000;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow:    0 1px 4px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.5), 0 12px 32px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.6), 0 24px 64px rgba(0,0,0,0.5);
}

/* =====================================================
   Reset & Base
   ===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 1rem;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

img  { max-width: 100%; display: block; }
a    { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 1.5rem;
}
@media (min-width: 768px) { .container { padding: 0 2.5rem; } }

/* =====================================================
   Navigation
   ===================================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    z-index: 200;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

body.dark-mode .navbar {
    background: rgba(9, 9, 11, 0.85);
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.brand img {
    height: 34px;
    width: auto;
}

body.dark-mode .brand img,
body.dark-mode .footer-brand img {
    filter: brightness(0) invert(1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.125rem;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-2);
    padding: 0.5rem 0.875rem;
    border-radius: var(--r-sm);
    transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav-links a:hover {
    color: var(--text);
    background: var(--bg-3);
}

.nav-contact {
    background: var(--text) !important;
    color: var(--bg) !important;
    padding: 0.5rem 1.125rem !important;
    font-weight: 600 !important;
    border-radius: var(--r-sm) !important;
    transition: opacity var(--dur) var(--ease) !important;
    margin-left: 0.5rem;
}
.nav-contact:hover {
    opacity: 0.82 !important;
    background: var(--text) !important;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Theme toggle */
.theme-toggle {
    width: 36px; height: 36px;
    border-radius: var(--r-sm);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-2);
    border: 1px solid var(--border);
    background: transparent;
    transition: all var(--dur) var(--ease);
}
.theme-toggle:hover { background: var(--bg-3); color: var(--text); }
.icon-sun  { display: none; }
.icon-moon { display: block; }
body.dark-mode .icon-sun  { display: block; }
body.dark-mode .icon-moon { display: none; }

/* Hamburger */
.menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px; height: 36px;
    padding: 8px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    background: transparent;
}
.menu-btn span {
    display: block;
    width: 100%; height: 1.5px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--dur) var(--ease);
}
.menu-btn.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-btn.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-btn.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* =====================================================
   Hero
   ===================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding-top: var(--nav-h);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(ellipse 80% 60% at 20% 60%, rgba(163, 230, 53, 0.09) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 20%, rgba(163, 230, 53, 0.05) 0%, transparent 50%),
        radial-gradient(circle, rgba(0,0,0,0.055) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 28px 28px;
    pointer-events: none;
}
body.dark-mode .hero-bg {
    background-image:
        radial-gradient(ellipse 80% 60% at 20% 60%, rgba(204, 255, 0, 0.07) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 20%, rgba(204, 255, 0, 0.04) 0%, transparent 50%),
        radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 28px 28px;
}

.hero-container {
    position: relative;
    z-index: 1;
    text-align: center;
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--text-3);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.375rem 0.875rem;
    margin-bottom: 1.75rem;
}
.hero-badge-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    display: inline-block;
    box-shadow: 0 0 0 3px rgba(163, 230, 53, 0.2);
    animation: pulse-dot 2.5s ease-in-out infinite;
}
body.dark-mode .hero-badge-dot {
    box-shadow: 0 0 0 3px rgba(204, 255, 0, 0.2);
}
@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 3px rgba(163, 230, 53, 0.2); }
    50%       { box-shadow: 0 0 0 6px rgba(163, 230, 53, 0.06); }
}
body.dark-mode .hero-badge-dot {
    animation: pulse-dot-dark 2.5s ease-in-out infinite;
}
@keyframes pulse-dot-dark {
    0%, 100% { box-shadow: 0 0 0 3px rgba(204, 255, 0, 0.2); }
    50%       { box-shadow: 0 0 0 6px rgba(204, 255, 0, 0.06); }
}

.hero-title {
    font-size: clamp(2.75rem, 7vw, 5.25rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.hero-title mark {
    background: var(--accent);
    color: var(--acc-text);
    padding: 0.04em 0.18em;
    border-radius: 6px;
    font-style: normal;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-2);
    max-width: 500px;
    margin: 0 auto 2.5rem;
    line-height: 1.72;
}

.hero-ctas {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
}
.scroll-line {
    width: 1px;
    height: 52px;
    background: linear-gradient(to bottom, var(--border), transparent);
    animation: fade-scroll 2.2s ease-in-out infinite;
}
@keyframes fade-scroll {
    0%, 100% { opacity: 0.25; transform: scaleY(0.6); }
    50%       { opacity: 1;    transform: scaleY(1); }
}

/* =====================================================
   Buttons
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 0.7rem 1.5rem;
    border-radius: var(--r-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--dur) var(--ease);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1;
}
.btn-primary {
    background: var(--accent);
    color: var(--acc-text);
    border-color: var(--accent);
}
.btn-primary:hover {
    filter: brightness(0.92);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(163, 230, 53, 0.35);
}
body.dark-mode .btn-primary:hover {
    box-shadow: 0 4px 20px rgba(204, 255, 0, 0.25);
}
.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}
.btn-ghost:hover {
    background: var(--bg-3);
    border-color: var(--text-3);
    transform: translateY(-1px);
}
.btn-lg {
    font-size: 1rem;
    padding: 0.875rem 2rem;
}

/* =====================================================
   Stats Bar
   ===================================================== */
.stats-bar {
    padding: 2.25rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-2);
}
.stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
}
.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem 3.5rem;
}
.stat strong {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.04em;
    line-height: 1.1;
}
.stat span {
    font-size: 0.8rem;
    color: var(--text-3);
    font-weight: 500;
    margin-top: 0.2rem;
    white-space: nowrap;
}
.stat-sep {
    width: 1px;
    height: 36px;
    background: var(--border);
}

/* =====================================================
   Sections
   ===================================================== */
.section     { padding: 6.5rem 0; }
.section-alt { background: var(--bg-2); }

.section-header {
    text-align: center;
    margin-bottom: 3.75rem;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}
.eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #527a00;
    margin-bottom: 0.875rem;
}
body.dark-mode .eyebrow { color: #ccff00; }

.section-header h2 {
    font-size: clamp(1.875rem, 4vw, 2.875rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--text);
    margin-bottom: 1rem;
}
.section-header p {
    font-size: 1.0625rem;
    color: var(--text-2);
    line-height: 1.68;
}

/* =====================================================
   Service Cards
   ===================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.service-card {
    position: relative;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 2.25rem;
    transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s var(--ease);
    border-radius: var(--r-lg) var(--r-lg) 0 0;
}
.service-card:hover {
    border-color: rgba(163, 230, 53, 0.45);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
body.dark-mode .service-card:hover {
    border-color: rgba(204, 255, 0, 0.3);
}
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
    width: 42px; height: 42px;
    border-radius: var(--r-sm);
    background: var(--bg-3);
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-2);
    margin-bottom: 1.5rem;
    transition: all 0.3s var(--ease);
    position: relative; z-index: 1;
}
.service-card:hover .service-icon {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--acc-text);
}

.service-num {
    position: absolute;
    top: 1.6rem; right: 1.75rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--text-3);
    z-index: 1;
}

.service-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 0.625rem;
    position: relative; z-index: 1;
}
.service-card p {
    font-size: 0.9375rem;
    color: var(--text-2);
    line-height: 1.65;
    position: relative; z-index: 1;
}

/* =====================================================
   Project Cards
   ===================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.75rem;
}

.project-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(163, 230, 53, 0.4);
}
body.dark-mode .project-card:hover {
    border-color: rgba(204, 255, 0, 0.25);
}

.project-img-wrap {
    overflow: hidden;
    height: 256px;
}
.project-img {
    width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s var(--ease);
}
.project-card:hover .project-img { transform: scale(1.04); }

.project-body { padding: 1.75rem 2rem; }

.project-tags {
    display: flex;
    gap: 0.375rem;
    flex-wrap: wrap;
    margin-bottom: 0.875rem;
}
.tag {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: var(--bg-3);
    color: var(--text-2);
    border: 1px solid var(--border);
    letter-spacing: 0.02em;
}

.project-body h3 {
    font-size: 1.3125rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text);
    margin-bottom: 0.625rem;
}
.project-body p {
    font-size: 0.9375rem;
    color: var(--text-2);
    line-height: 1.65;
    margin-bottom: 1.375rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    transition: gap 0.2s var(--ease), color 0.2s var(--ease);
}
.project-link:hover {
    gap: 0.625rem;
    color: #527a00;
}
body.dark-mode .project-link:hover { color: var(--accent); }

/* =====================================================
   CTA Section
   ===================================================== */
.cta-section {
    padding: 7rem 0;
    background: #09090b;
    position: relative;
    overflow: hidden;
    text-align: center;
}
body.dark-mode .cta-section { background: #18181d; }

.cta-glow {
    position: absolute;
    width: 700px; height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(163, 230, 53, 0.08) 0%, transparent 70%);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}
body.dark-mode .cta-glow {
    background: radial-gradient(circle, rgba(204, 255, 0, 0.07) 0%, transparent 70%);
}

.cta-inner { position: relative; z-index: 1; }

.cta-section h2 {
    font-size: clamp(2rem, 4.5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: #fafafa;
    margin-bottom: 0.875rem;
}
.cta-section p {
    font-size: 1.0625rem;
    color: #71717a;
    margin-bottom: 2.5rem;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* =====================================================
   Footer
   ===================================================== */
footer {
    padding: 4rem 0 2.25rem;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

.footer-brand img { height: 30px; margin-bottom: 1rem; }
.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-3);
    line-height: 1.6;
    max-width: 220px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.footer-col h4 {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 0.375rem;
}
.footer-col a {
    font-size: 0.9rem;
    color: var(--text-2);
    transition: color var(--dur) var(--ease);
}
.footer-col a:hover { color: var(--text); }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.footer-bottom p,
.footer-contact {
    font-size: 0.8125rem;
    color: var(--text-3);
}

/* =====================================================
   Scroll Reveal Animations
   ===================================================== */
.fade-in {
    animation: fade-up 0.85s var(--ease) both;
}
@keyframes fade-up {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.services-grid .service-card:nth-child(2) { transition-delay: 0.1s; }
.services-grid .service-card:nth-child(3) { transition-delay: 0.2s; }

/* =====================================================
   Responsive
   ===================================================== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid   { grid-template-columns: 1fr 1fr; }
    .footer-brand  { grid-column: span 2; }
}

@media (max-width: 768px) {
    .menu-btn { display: flex; }

    .nav-links {
        position: fixed;
        top: var(--nav-h); right: 0; bottom: 0;
        width: min(300px, 78vw);
        background: var(--bg);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 2rem 1.5rem;
        gap: 0.125rem;
        transform: translateX(105%);
        transition: transform 0.3s var(--ease);
        border-left: 1px solid var(--border);
        z-index: 199;
        display: flex;
        box-shadow: -8px 0 40px rgba(0,0,0,0.1);
    }
    .nav-links.open { transform: translateX(0); }
    .nav-links a {
        font-size: 1.0625rem;
        width: 100%;
        padding: 0.75rem 1rem;
    }
    .nav-contact { margin-left: 0; margin-top: 0.75rem; text-align: center; }

    .hero-title { font-size: clamp(2.25rem, 9vw, 3.25rem); }
    .hero-subtitle { font-size: 1rem; }

    .stats-row { justify-content: flex-start; overflow-x: auto; padding-bottom: 0.25rem; flex-wrap: nowrap; }
    .stat { padding: 0.5rem 2rem; flex-shrink: 0; }

    .services-grid { grid-template-columns: 1fr; gap: 1rem; }
    .service-card  { padding: 1.875rem; }

    .projects-grid { grid-template-columns: 1fr; }

    .footer-grid { gap: 1.75rem; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }

    .cta-section h2 { font-size: 2.125rem; }
}

@media (max-width: 480px) {
    .hero-ctas { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; max-width: 300px; }
    .stat-sep { display: none; }
    .stats-row { gap: 0; }
    .stat { padding: 0.625rem 1.5rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: span 1; }
}

/* Schola project card placeholder image */
.project-img-schola { height: 256px; overflow: hidden; }
.project-img-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0f2a00 0%, #1a4d00 50%, #0d3300 100%);
    color: rgba(163, 230, 53, 0.55);
}
body.dark-mode .project-img-placeholder {
    background: linear-gradient(135deg, #0a1f00 0%, #152e00 50%, #0a2200 100%);
    color: rgba(204, 255, 0, 0.45);
}

/* =====================================================
   Content Pages (chore-equity, terms, schola)
   ===================================================== */
.content-section { padding: 140px 0 80px; }
.content-wrapper { max-width: 760px; margin: 0 auto; }
.content-wrapper h2 {
    color: var(--text);
    margin: 3rem 0 1.25rem;
    font-size: 1.5rem;
    font-weight: 700;
    border-left: 4px solid var(--accent);
    padding-left: 1.25rem;
    letter-spacing: -0.02em;
}
.content-wrapper p {
    margin-bottom: 1.375rem;
    color: var(--text-2);
    font-size: 1.0625rem;
    line-height: 1.7;
}