/* ==========================================================================
   WAHCARS.COM - MODERN AUTOMOTIVE DASHBOARD EDITION
   ========================================================================== */

/* --- CSS Variables & Theming --- */
:root {
    --bg: #F8FAFC;
    --surface: #FFFFFF;
    --card: #F1F5F9;
    --accent: #2563EB; /* Modern Blue */
    --accent-glow: rgba(37, 99, 235, 0.4);
    --text: #0F172A;
    --muted: #64748B;
    --border: #E2E8F0;
    
    --font-heading: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-body: 'Inter', sans-serif;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --br-sm: 8px;
    --br-md: 16px;
    --br-lg: 24px;
}

html.dark {
    --bg: #0B0F19; /* Deep dashboard dark */
    --surface: #111827;
    --card: rgba(31, 41, 55, 0.5); /* Glass base */
    --accent: #38BDF8; /* Neon Cyan */
    --accent-glow: rgba(56, 189, 248, 0.3);
    --text: #F8FAFC;
    --muted: #94A3B8;
    --border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

/* Animated Background Elements */
.bg-glow {
    position: fixed;
    top: -20%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    filter: blur(100px);
    z-index: -2;
    opacity: 0.5;
    animation: drift 20s ease-in-out infinite alternate;
}

.bg-grid {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(to right, var(--border) 1px, transparent 1px),
        linear-gradient(to bottom, var(--border) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    z-index: -1;
    mask-image: radial-gradient(circle at center, black, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black, transparent 80%);
}

@keyframes drift {
    100% { transform: translate(10%, 10%); }
}

a { text-decoration: none; color: inherit; }
button { font-family: var(--font-heading); cursor: pointer; border: none; background: none; outline: none; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.text-center { text-align: center; }
.w-full { width: 100%; }

.gradient-text {
    background: linear-gradient(135deg, #F8FAFC 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

html.light .gradient-text {
    background: linear-gradient(135deg, #0F172A 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- Layout --- */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Buttons --- */
.btn-primary, .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 28px;
    font-weight: 600;
    font-size: 15px;
    border-radius: var(--br-md);
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent);
    color: #0F172A; /* Dark text on bright accent for contrast */
    box-shadow: 0 4px 14px 0 var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 var(--accent-glow);
    filter: brightness(1.1);
}

.btn-outline {
    background-color: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    border-color: var(--accent);
    background: rgba(255,255,255,0.05);
    color: var(--accent);
}

/* --- 1. Sticky Navigation --- */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
}
html.light .navbar.scrolled { background: rgba(248, 250, 252, 0.8); }

.nav-container {
    max-width: 1400px; margin: 0 auto; padding: 0 24px;
    display: flex; justify-content: space-between; align-items: center;
}

.logo {
    display: flex; align-items: center; gap: 8px;
    font-family: var(--font-heading); font-size: 24px; font-weight: 800;
}

.logo-icon { color: var(--accent); }
.logo-dot { color: var(--accent); }

.nav-center {
    display: none; align-items: center; gap: 10px;
    font-family: var(--font-mono); font-size: 13px; font-weight: 600;
    background: var(--card); padding: 8px 16px; border-radius: 50px;
    border: 1px solid var(--border);
}

@media(min-width: 768px) { .nav-center { display: flex; } }

.blink-dot {
    width: 8px; height: 8px; background-color: var(--accent);
    border-radius: 50%; box-shadow: 0 0 10px var(--accent);
    animation: blink 1.5s infinite;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.nav-right { display: flex; align-items: center; gap: 16px; }

.theme-btn {
    font-size: 20px; background: var(--card); border: 1px solid var(--border);
    border-radius: 50%; width: 44px; height: 44px; display: flex;
    align-items: center; justify-content: center; transition: var(--transition);
}
.theme-btn:hover { border-color: var(--accent); transform: scale(1.05); }

.nav-right .btn-primary { display: none; padding: 10px 20px; font-size: 13px; }
@media(min-width: 600px) { .nav-right .btn-primary { display: inline-flex; } }

/* --- 2. Hero Section --- */
.hero {
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
}

@media(min-width: 1024px) {
    .hero-container { grid-template-columns: 1fr 1fr; }
}

.hero-label {
    display: inline-flex; align-items: center; gap: 12px;
    font-family: var(--font-mono); font-size: 12px; font-weight: 700;
    color: var(--accent); margin-bottom: 24px;
    background: var(--card); padding: 6px 16px; border-radius: 50px;
    border: 1px solid var(--border); letter-spacing: 0.1em;
}

.pulse-ring {
    width: 8px; height: 8px; background: var(--accent); border-radius: 50%;
    position: relative;
}
.pulse-ring::before {
    content: ''; position: absolute; top: -4px; left: -4px; right: -4px; bottom: -4px;
    border-radius: 50%; border: 1px solid var(--accent);
    animation: pulse 2s linear infinite;
}
@keyframes pulse { 0% { transform: scale(0.5); opacity: 1; } 100% { transform: scale(2); opacity: 0; } }

.hero-title { font-size: clamp(40px, 5vw, 64px); margin-bottom: 24px; }
.hero-subheadline { font-size: 18px; color: var(--muted); margin-bottom: 40px; max-width: 540px; }

/* Countdown */
.countdown-wrapper { margin-bottom: 40px; }
.countdown-label { font-family: var(--font-mono); font-size: 12px; color: var(--muted); margin-bottom: 12px; letter-spacing: 2px; }
.countdown { display: flex; align-items: center; gap: 16px; }
.time-box {
    display: flex; flex-direction: column; align-items: center;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--br-md); padding: 12px 16px; min-width: 70px;
    backdrop-filter: blur(8px); box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
}
.time-val { font-family: var(--font-mono); font-size: 28px; font-weight: 700; color: var(--text); }
.time-unit { font-size: 11px; color: var(--muted); font-weight: 600; letter-spacing: 1px; }
.time-sep { font-family: var(--font-mono); font-size: 24px; color: var(--accent); opacity: 0.5; }

.hero-ctas { display: flex; flex-direction: column; gap: 16px; }
@media(min-width: 600px) { .hero-ctas { flex-direction: row; } }

/* Tachometer Visual */
.hero-visual { position: relative; width: 100%; display: flex; justify-content: center; }

.tachometer-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
}

.tachometer {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(15,23,42,0.9) 0%, rgba(15,23,42,0.4) 70%, transparent 100%);
    box-shadow: inset 0 0 40px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}
html.light .tachometer { background: radial-gradient(circle at center, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.4) 70%, transparent 100%); }

.tach-outer-ring {
    position: absolute;
    width: 90%;
    height: 90%;
    border-radius: 50%;
    border: 2px dashed rgba(255,255,255,0.1);
    border-bottom-color: transparent;
    transform: rotate(45deg);
}
html.light .tach-outer-ring { border-color: rgba(0,0,0,0.1); border-bottom-color: transparent; }

.tach-inner-glow {
    position: absolute;
    width: 80%;
    height: 80%;
    border-radius: 50%;
    background: conic-gradient(from 225deg, transparent 0deg, var(--accent) 180deg, #EF4444 270deg, transparent 270deg);
    -webkit-mask: radial-gradient(transparent 65%, black 66%);
    mask: radial-gradient(transparent 65%, black 66%);
    opacity: 0.8;
}

.tach-center {
    position: relative;
    z-index: 10;
    text-align: center;
    margin-top: 60px;
}

.tach-value {
    font-family: var(--font-mono);
    font-size: 56px;
    font-weight: 700;
    color: var(--text);
    text-shadow: 0 0 15px var(--accent-glow);
    line-height: 1;
}

.tach-unit {
    font-family: var(--font-heading);
    font-size: 14px;
    color: var(--muted);
    letter-spacing: 3px;
    margin-top: 4px;
}

.tach-needle-container {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    transform: rotate(-135deg); /* Start position */
    will-change: transform;
}

.tach-needle {
    position: absolute;
    bottom: 50%;
    left: 50%;
    width: 4px;
    height: 38%;
    background: #EF4444;
    transform: translateX(-50%);
    border-radius: 4px 4px 0 0;
    box-shadow: 0 0 10px #EF4444, 0 0 20px #EF4444;
    z-index: 5;
}

.tach-needle::after {
    content: '';
    position: absolute;
    top: 0; left: -15px; right: -15px; height: 100%;
    background: linear-gradient(to top, transparent, rgba(239, 68, 68, 0.4));
    filter: blur(8px);
}

.tach-pin {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 28px;
    height: 28px;
    background: #0F172A;
    border: 4px solid #EF4444;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 15px rgba(0,0,0,0.5);
    z-index: 6;
}
html.light .tach-pin { background: #FFFFFF; }

/* --- 3. Trust Strip --- */
.trust-strip { padding: 60px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.02); }
html.dark .trust-strip { background: rgba(255,255,255,0.02); }
.trust-grid { display: grid; grid-template-columns: 1fr; gap: 32px; }
@media(min-width: 768px) { .trust-grid { grid-template-columns: repeat(3, 1fr); gap: 48px; } }

.trust-card { display: flex; flex-direction: column; align-items: flex-start; }
.trust-icon-wrapper {
    width: 56px; height: 56px; border-radius: var(--br-md);
    background: var(--card); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; margin-bottom: 20px;
    box-shadow: 0 4px 10px var(--accent-glow);
}
.trust-title { font-size: 20px; margin-bottom: 8px; }
.trust-desc { color: var(--muted); font-size: 15px; }

/* --- 4. Tools Showcase --- */
.tools-showcase { padding: 120px 0; }
.section-header { margin-bottom: 80px; text-align: center; }
.section-title { font-size: 48px; margin-bottom: 12px; }
.section-subtext { font-family: var(--font-mono); color: var(--accent); font-size: 14px; letter-spacing: 2px; }

.category-block { margin-bottom: 80px; }
.category-bar {
    display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid var(--border); padding-bottom: 16px; margin-bottom: 32px;
}
.cat-title-wrap { display: flex; align-items: center; gap: 12px; }
.cat-icon { font-size: 24px; }
.cat-title { font-size: 24px; font-weight: 700; letter-spacing: 1px; }
.cat-count { font-family: var(--font-mono); font-size: 13px; color: var(--muted); background: var(--card); padding: 4px 12px; border-radius: 50px; }

.tools-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media(min-width: 768px) { .tools-grid { grid-template-columns: repeat(2, 1fr); } }
@media(min-width: 1024px) { .tools-grid { grid-template-columns: repeat(3, 1fr); gap: 32px; } }

.tool-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--br-md); padding: 32px; display: flex; flex-direction: column;
    position: relative; overflow: hidden; backdrop-filter: blur(10px);
    transition: var(--transition);
}
.card-glow {
    position: absolute; top: 0; left: 0; right: 0; height: 100%;
    background: radial-gradient(800px circle at var(--mouse-x) var(--mouse-y), var(--accent-glow), transparent 40%);
    opacity: 0; transition: opacity 0.3s; pointer-events: none; z-index: 0;
}
.tool-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 30px -10px var(--accent-glow);
}
.tool-card:hover .card-glow { opacity: 1; }
.tool-card > * { position: relative; z-index: 1; }

.tool-num {
    font-family: var(--font-mono); font-size: 40px; font-weight: 700;
    color: var(--border); line-height: 1; margin-bottom: 20px;
    transition: color 0.3s;
}
.tool-card:hover .tool-num { color: var(--accent); }
.tool-name { font-size: 22px; margin-bottom: 12px; flex-grow: 1; }
.tool-desc { color: var(--muted); font-size: 15px; }

/* --- 6. Sticky Banner --- */
.sticky-banner {
    position: fixed; bottom: 0; left: 0; width: 100%;
    background: var(--accent); color: #0F172A;
    padding: 12px 20px; display: flex; justify-content: center; align-items: center;
    z-index: 90; font-size: 14px; font-weight: 500;
}
.banner-text { font-family: var(--font-body); }
html.light .sticky-banner { color: #fff; }

/* --- 8. Footer --- */
.footer { padding: 60px 0 100px; border-top: 1px solid var(--border); background: var(--surface); }
.footer-content { display: flex; flex-direction: column; gap: 24px; align-items: center; text-align: center; }
@media(min-width: 768px) { .footer-content { flex-direction: row; justify-content: space-between; text-align: left; } }
.footer-center { color: var(--muted); font-size: 14px; }
.footer-right { display: flex; gap: 12px; }
.social-link {
    width: 36px; height: 36px; background: var(--card); border: 1px solid var(--border);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-size: 12px; font-weight: 600; transition: var(--transition);
}
.social-link:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* --- 5. Popup Overlay --- */
.popup-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(11, 15, 25, 0.8); backdrop-filter: blur(8px);
    z-index: 1000; display: flex; align-items: center; justify-content: center;
    padding: 20px; opacity: 0; visibility: hidden; transition: var(--transition);
}
.popup-overlay.active { opacity: 1; visibility: visible; }
.popup-content {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--br-lg);
    padding: 48px 40px; max-width: 440px; width: 100%; position: relative; text-align: center;
    transform: translateY(20px) scale(0.95); transition: var(--transition);
    overflow: hidden; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}
.popup-overlay.active .popup-content { transform: translateY(0) scale(1); }
.popup-glow {
    position: absolute; top: -50px; left: 50%; transform: translateX(-50%);
    width: 200px; height: 100px; background: var(--accent); filter: blur(60px); opacity: 0.3; pointer-events: none;
}
.popup-close { position: absolute; top: 20px; right: 20px; font-size: 20px; color: var(--muted); z-index: 2; transition: var(--transition); }
.popup-close:hover { color: var(--text); transform: rotate(90deg); }
.popup-icon { font-size: 48px; margin-bottom: 24px; display: inline-block; animation: float 3s ease-in-out infinite; }
.popup-title { font-size: 32px; margin-bottom: 16px; }
.popup-desc { color: var(--muted); margin-bottom: 32px; font-size: 15px; }

/* Utilities */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }