/* ==========================================================
   Living Knowledge Protocol - Official Stylesheet
   Version 1.1.1 (Final Stability & UI Polish)
   ========================================================== */

/* Import fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

:root {
    --bg-color: #ffffff;
    --text-color: #1a202c;
    --text-muted: #4a5568;
    --accent-color: #2f855a;
    --border-color: #e2e8f0;
    --card-bg: #f8fafc;
    --link-color: #1a73e8;
    --link-hover: #1557b0;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --container-width: 1100px;
    --section-padding: clamp(3.5rem, 8vw, 5.5rem);
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --accent-color: #4ade80;
    --border-color: #1e293b;
    --card-bg: #1e293b;
    --link-color: #60a5fa;
    --link-hover: #93c5fd;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    line-height: 1.6;
    margin: 0;
    font-size: clamp(1.1rem, 1.8vw, 1.4rem);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.site-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    background-color: var(--bg-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-weight: 900;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-color);
    text-decoration: none;
}

.logo img { width: 40px; height: 40px; }

.nav-links { 
    display: flex; 
    gap: 1.5rem; 
    flex-wrap: wrap;
}

.nav-links a { 
    font-size: 1.1rem; 
    color: var(--text-muted); 
    text-decoration: none; 
    font-weight: 600; 
}

.nav-links a:hover, .nav-links a.active { color: var(--link-color); }

/* Hero */
.hero { padding: clamp(3rem, 10vw, 6rem) 0; text-align: center; }
.hero h1 { 
    font-size: clamp(2.5rem, 10vw, 4.5rem); 
    font-weight: 900; 
    line-height: 1.05; 
    margin-bottom: 1.5rem; 
    letter-spacing: -0.02em;
}
.hero-subtitle { 
    font-size: clamp(1.1rem, 2.5vw, 1.5rem); 
    color: var(--text-muted); 
    margin-bottom: 3rem; 
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.hero-actions { 
    display: flex; 
    gap: 1.5rem; 
    align-items: center; 
    justify-content: center; 
    flex-wrap: wrap; 
}

.hero-badge {
    max-width: 180px;
    height: auto;
    display: block;
    margin: 2rem auto 0;
}

/* Sections */
section { padding: var(--section-padding) 0; }
h2 { 
    font-size: clamp(1.8rem, 5vw, 2.8rem); 
    font-weight: 800; 
    margin-bottom: 2.5rem; 
    border-bottom: 6px solid var(--accent-color); 
    display: inline-block; 
    line-height: 1.2;
}
h3 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; margin-bottom: 1.25rem; }
p, li { margin-bottom: 1.5rem; }

a { color: var(--link-color); text-decoration: none; border-bottom: 2px solid transparent; transition: all 0.2s; }
a:hover { color: var(--link-hover); border-bottom-color: var(--link-hover); }

blockquote {
    border-left: 8px solid var(--link-color);
    background-color: var(--card-bg);
    padding: clamp(1.5rem, 5vw, 2.5rem) clamp(2rem, 6vw, 3.5rem);
    margin: 3rem 0;
    font-style: italic;
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    border-radius: 0 20px 20px 0;
}

/* Conformance & Cards */
.lkp-conformance {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: clamp(2rem, 6vw, 4rem);
    border-radius: 30px;
    margin: 3rem 0;
    text-align: left;
}

.lkp-grid, .lkp-principles-grid, .steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
    gap: 2rem;
}

.lkp-item { font-size: 1.1rem; font-weight: 700; display: flex; align-items: center; gap: 0.75rem; }
.lkp-item::before { content: "✓"; color: var(--accent-color); font-weight: 900; }

.audience-card, .principle-card, .step-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    height: 100%;
}

.section-card { background-color: var(--card-bg); padding: clamp(2rem, 6vw, 4rem); border-radius: 30px; }

/* Code Preview */
.code-preview {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 1.5rem;
    border-radius: 12px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.95rem;
    overflow-x: auto;
    margin: 2rem 0;
    line-height: 1.4;
}

/* Table */
.table-container { 
    overflow-x: auto; 
    margin: 2rem 0; 
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
}
table { width: 100%; border-collapse: collapse; font-size: 1rem; min-width: 100%; }
th, td { padding: 1.25rem; text-align: left; border-bottom: 1px solid var(--border-color); word-break: break-word; }
th { text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); font-weight: 700; background-color: var(--card-bg); }

/* Buttons */
.btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 12px;
    background-color: var(--accent-color);
    color: white !important;
    display: inline-block;
    transition: transform 0.2s;
    text-decoration: none;
    border: none;
    cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color) !important;
}

/* Theme Toggle */
.theme-toggle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    color: var(--text-color);
}

/* Footer */
.site-footer { border-top: 1px solid var(--border-color); padding: 4rem 0; background-color: var(--card-bg); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 3rem; }
.site-footer a { color: var(--text-muted); border-bottom: none; font-size: 1.1rem; }
.site-footer a:hover { color: var(--link-color); }

/* Responsiveness */
@media (max-width: 768px) {
    th, td { padding: 0.75rem; font-size: 0.9rem; }
    .lkp-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 3rem; }
    .nav-main { justify-content: center; }
    .nav-links { justify-content: center; gap: 1rem; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 2.5rem; }
    .lkp-conformance { padding: 1.5rem; }
}