/* =========================================
   KAIZEN METRICS V12: MINIMALIST ENGINE
   ========================================= */

/* 1. RESET & VARIABLES */
/* 1. RESET & VARIABLES */
/* DEFAULT: DARK MODE (Organic Tech) */
:root {
    --bg: #020617;
    --card-bg: #1e293b;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #60a5fa;
    /* Blue-400 */
    --cyan: #06b6d4;
    /* Cyan-500 */
    --magenta: #d946ef;
    /* Fuchsia-500 */
    --border: #334155;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --max-width: 1200px;

    /* Brand Colors */
    --bg-deep: #0f172a;
    --primary: var(--cyan);
    --gold: #fbbf24;

    /* Status Indicators */
    --success: #10b981;
    /* Emerald-500 */
    --warning: #f59e0b;
    /* Amber-500 */
    --error: #ef4444;
    /* Red-500 */

    /* Legacy Compat */
    --input-border: var(--border);
    --k-accent: var(--accent);
}

/* OPT-IN LIGHT MODE */
[data-theme="light"] {
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

[data-theme="synthwave"] {
    --bg: #1a0b2e;
    --card-bg: #2d1b4e;
    --text: #ff71ce;
    --text-muted: #b967ff;
    --accent: #01cdfe;
    --border: #ff71ce;
    --shadow: 0 0 20px rgba(255, 113, 206, 0.4);
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, -apple-system, sans-serif !important;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background 0.3s, color 0.3s;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent);
}

/* 2. HEADER (Fixed & Centered Content) */
.v2-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.nav-links-desktop {
    display: flex;
    gap: 24px;
}

.nav-link {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.nav-link:hover {
    color: var(--text);
}

.controls-group {
    display: flex;
    gap: 15px;
    align-items: center;
}

.menu-btn {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.8rem;
    color: var(--text);
    padding: 5px;
    cursor: pointer;
}

.theme-toggle-btn {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 5px 12px;
    font-size: 0.9rem;
    color: var(--text);
    cursor: pointer;
}

/* 3. MOBILE MENU */
.mobile-nav-overlay {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--card-bg);
    z-index: 999;
    padding: 30px;
    display: none;
    /* JS Toggles */
    flex-direction: column;
    gap: 20px;
    border-top: 1px solid var(--border);
}

.mobile-nav-overlay.active {
    display: flex;
}

.mobile-link {
    font-size: 1.2rem;
    font-weight: 700;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

/* 4. MAIN LAYOUT (Centered) */
.main-container {
    margin-top: 100px;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;
}

.authority-hero {
    text-align: center;
    margin-bottom: 60px;
}

.auth-title {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: -1px;
    margin-bottom: 10px;
}

.auth-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* 5. SYSTEMS GRID (2 Columns Default) */
.systems-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.system-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 300px;
    transition: transform 0.2s;
}

.system-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: var(--shadow);
}

.system-tag {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent);
    font-size: 0.85rem;
    margin-bottom: 15px;
    display: block;
}

.system-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 15px;
}

/* 6. FULL WIDTH EVIDENCE */
.evidence-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
}

/* 7. ADSENSE SAFETY */
.ad-space {
    width: 100%;
    min-height: 280px;
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 40px 0;
    overflow: hidden;
}

/* 8. FOOTER */
.v2-footer {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-copy {
    font-size: 0.9rem;
    opacity: 0.6;
    font-family: 'JetBrains Mono', monospace;
}

/* 9. MOBILE STRICT RULES (< 768px) */
@media (max-width: 768px) {
    .nav-links-desktop {
        display: none;
    }

    .menu-btn {
        display: block;
    }

    .systems-grid {
        grid-template-columns: 1fr !important;
    }

    .evidence-card {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .auth-title {
        font-size: 2rem;
    }

    .system-card {
        padding: 30px;
        min-height: auto;
    }
}

/* 10. FORMS & INPUTS (Organic Tech Strict) */
input,
select,
textarea {
    background-color: var(--bg-deep) !important;
    /* Force dark background */
    color: var(--text) !important;
    border: 1px solid var(--border) !important;
    border-radius: 8px;
    padding: 12px 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    width: 100%;
    margin-bottom: 20px;
    /* Space between inputs */
    transition: all 0.3s ease;
    outline: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
    /* Glow effect */
}

/* Fix for Select dropdown specific */
select option {
    background-color: var(--bg);
    color: var(--text);
}

/* Button Reset & Style */
button,
input[type="submit"],
input[type="button"],
.action-btn,
.btn-primary {
    background: var(--accent);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Inter', sans-serif;
    display: inline-block;
    text-align: center;
    /* Reset Default appearances */
    -webkit-appearance: none;
    appearance: none;
    line-height: normal;
    /* Fix for inputs */
}

button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
.action-btn:hover,
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(96, 165, 250, 0.4);
}

/* 11. GLOBAL MARGINS FIX */
.container,
.content-wrapper,
article,
.v2-main-container,
.main-container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.calculator-box,
.calc-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    /* Internal breathing room */
    margin: 40px auto;
    /* External separation */
    max-width: 800px;
    box-shadow: var(--shadow);
}

/* 12. GLOBAL HERO (Standardized) */
/* Requires placement OUTSIDE .main-container for full width */
.tool-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    color: white;
    padding: 100px 20px 60px;
    /* Top padding to account for fixed header (70px + 30px) */
    text-align: center;
    border-bottom: 4px solid var(--accent);
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.tool-hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 30px 30px;
    pointer-events: none;
}

.tool-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 900;
    letter-spacing: -1px;
    position: relative;
    z-index: 1;
}

.tool-hero p {
    font-size: 1.1rem;
    color: #94a3b8;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-breadcrumbs {
    position: absolute;
    top: 80px;
    /* Below fixed header */
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 700;
}