/* ==========================================================================
   ProSchool360 SEO Automation - Design System v4.0 (Ultra-Premium Midnight)
   ========================================================================== */

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

:root {
    /* Core Colors - Midnight Premium Palette */
    --midnight: #050A15;
    --primary-indigo: #6366f1;
    --primary-cyan: #06b6d4;
    --premium-gold: #FFD700;
    --premium-cyan: #00E5FF;
    --accent-gold: #FFB800;
    --dark-bg: #050A15;
    
    /* Semantic Colors */
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --white: #ffffff;
    
    /* Effects */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(255, 215, 0, 0.4);
    --glow-premium: 0 0 40px -10px rgba(255, 215, 0, 0.4);
    
    /* Spacing */
    --section-py: 120px;
}

/* Global Base */
body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--midnight);
    color: var(--slate-400);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, .heading-font {
    font-family: 'Outfit', sans-serif;
    color: var(--white);
    font-weight: 800;
    letter-spacing: -0.03em;
}

/* Scroll Progress Bar */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(to right, var(--indigo-500), var(--cyan-500));
    z-index: 9999;
    width: 0%;
    transition: width 0.1s linear;
}

/* Ultra Backgrounds */
.grid-bg {
    background-image: 
        radial-gradient(circle at 2px 2px, rgba(255,255,255,0.05) 1px, transparent 0);
    background-size: 40px 40px;
}

.aura-glow {
    position: absolute;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.15) 0%, transparent 70%);
    z-index: -1;
    filter: blur(80px);
    pointer-events: none;
}

/* ── BACKGROUND EFFECTS ── */
.floating-orbs {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1; pointer-events: none; overflow: hidden;
}
.orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.12; }
.orb-1 { width: 500px; height: 500px; background: var(--premium-cyan); top: -200px; right: -100px; }
.orb-2 { width: 400px; height: 400px; background: var(--premium-gold); bottom: -100px; left: -100px; }

/* ── PROMO STRIP ── */
.promo-strip {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    text-align: center; padding: 12px; font-weight: 700; font-size: 0.95rem;
    position: sticky; top: 0; z-index: 1000;
}
.promo-tag {
    background: linear-gradient(90deg, var(--premium-gold), var(--accent-gold));
    color: #000; padding: 4px 15px; border-radius: 50px; margin: 0 10px;
    font-size: 0.85rem; text-transform: uppercase;
}

/* Glassmorphism v2 */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 28px;
    padding: 2.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.glass-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glow-premium);
    background: rgba(255, 255, 255, 0.04);
}

/* Border Beam Animation Effect */
.border-beam::after {
    content: "";
    position: absolute;
    inset: 0;
    border: 2px solid transparent;
    border-radius: inherit;
    background: linear-gradient(90deg, transparent, var(--premium-gold), var(--premium-cyan), transparent) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.glass-card:hover.border-beam::after {
    opacity: 1;
}

/* Hero v4.0 */
.hero-wrapper {
    padding: 180px 0 120px 0;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    line-height: 0.95;
    font-weight: 900;
    margin-bottom: 24px;
    background: linear-gradient(to bottom, #fff 40%, rgba(255,255,255,0.4) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-word {
    background: linear-gradient(to right, #fff 0%, var(--premium-gold) 50%, var(--premium-cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--slate-400);
    max-width: 650px;
    line-height: 1.6;
}

/* Article Styling (1000+ Words Readability) */
.article-section {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.15rem;
}

.article-section h2 {
    font-size: 2.75rem;
    margin-top: 4rem;
    margin-bottom: 1.5rem;
}

.article-section p {
    margin-bottom: 1.5rem;
}

.article-section .lead {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--white);
    border-left: 4px solid var(--premium-gold);
    padding-left: 2rem;
    margin: 3rem 0;
}

/* FAQ Accordion Premium */
.accordion-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border) !important;
    border-radius: 16px !important;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-button {
    background: transparent !important;
    color: var(--white) !important;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    padding: 1.5rem;
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
    background: rgba(255, 215, 0, 0.05) !important;
    color: var(--premium-gold) !important;
}

.accordion-body {
    background: transparent;
    color: var(--slate-400);
    padding: 1.5rem;
    padding-top: 0;
}

/* Premium Buttons */
.btn-premium {
    position: relative;
    padding: 1.25rem 2.5rem;
    border-radius: 14px;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    overflow: hidden;
}

.btn-primary-gold {
    background: var(--premium-gold);
    color: #000;
    box-shadow: 0 10px 30px -5px rgba(255, 215, 0, 0.4);
}
.btn-primary-gold:hover {
    transform: translateY(-5px) scale(1.05);
    background: var(--accent-gold);
}

.btn-primary-indigo:hover {
    background: var(--indigo-500);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 20px 40px -10px rgba(79, 70, 229, 0.6);
}

/* Dynamic Hover Background for internal links pils */
.glass-pill {
    padding: 0.75rem 1.5rem;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    color: var(--slate-400);
    transition: all 0.3s ease;
    text-decoration: none;
    font-weight: 500;
}

.glass-pill:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--white);
    border-color: var(--indigo-500);
    transform: scale(1.05);
}

/* Utilities */
.py-10 { padding-top: 10rem; padding-bottom: 10rem; }
.mb-10 { margin-bottom: 5rem; }
.text-slate-400 { color: var(--slate-400); }
.text-balance { text-wrap: balance; }
.tracking-tight { letter-spacing: -0.02em; }

@media (max-width: 991px) {
    .py-10 { padding-top: 6rem; padding-bottom: 6rem; }
    .hero-wrapper { padding-top: 140px; text-align: center; }
}