/* ============================================================
   AIOps School — Premium Theme
   A modern, dark, AI-inspired design system
   Built on Bootstrap 5.3
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
    --bg-primary:    #0a0e1a;
    --bg-secondary:  #111827;
    --bg-card:       #1a1f35;
    --bg-card-hover: #222842;
    --surface:       rgba(255,255,255,0.04);
    --border:        rgba(255,255,255,0.08);
    --border-glow:   rgba(0,212,255,0.25);

    --text-primary:   #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted:     #64748b;

    --accent:         #00d4ff;
    --accent-rgb:     0,212,255;
    --accent2:        #7c3aed;
    --accent2-rgb:    124,58,237;
    --accent3:        #06d6a0;
    --accent3-rgb:    6,214,160;
    --gradient:       linear-gradient(135deg, var(--accent), var(--accent2));
    --gradient2:      linear-gradient(135deg, var(--accent2), #e040fb);
    --gradient3:      linear-gradient(135deg, var(--accent3), var(--accent));

    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius-sm:  8px;
    --radius-md:  12px;
    --radius-lg:  20px;
    --radius-xl:  28px;

    --shadow-sm:  0 2px 8px rgba(0,0,0,0.3);
    --shadow-md:  0 8px 32px rgba(0,0,0,0.4);
    --shadow-lg:  0 16px 64px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 30px rgba(var(--accent-rgb),0.15);

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: rgba(var(--accent-rgb), 0.3);
    color: #fff;
}

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: #fff; }

img { max-width: 100%; height: auto; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-card); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ---------- Animated Background Grid ---------- */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}
@keyframes gridMove {
    0%   { transform: translate(0,0); }
    100% { transform: translate(60px,60px); }
}

/* ---------- Glowing Orbs Background ---------- */
.bg-orbs {
    position: fixed;
    inset: 0;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}
.bg-orbs::before,
.bg-orbs::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.12;
}
.bg-orbs::before {
    width: 600px; height: 600px;
    background: var(--accent);
    top: -200px; right: -100px;
    animation: orbFloat 15s ease-in-out infinite alternate;
}
.bg-orbs::after {
    width: 500px; height: 500px;
    background: var(--accent2);
    bottom: -150px; left: -100px;
    animation: orbFloat 18s ease-in-out infinite alternate-reverse;
}
@keyframes orbFloat {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(80px, -60px) scale(1.15); }
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar-main {
    background: rgba(10,14,26,0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    padding: 0.7rem 0;
    transition: var(--transition);
    z-index: 1050;
}
.navbar-main.scrolled {
    background: rgba(10,14,26,0.95);
    box-shadow: var(--shadow-md);
}
.navbar-main .navbar-brand {
    font-weight: 800;
    font-size: 1.45rem;
    letter-spacing: -0.5px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.navbar-main .navbar-brand span {
    -webkit-text-fill-color: var(--text-primary);
    font-weight: 400;
}
.navbar-main .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 0.85rem !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}
.navbar-main .nav-link:hover,
.navbar-main .nav-link.active {
    color: var(--accent) !important;
    background: rgba(var(--accent-rgb), 0.08);
}
.navbar-main .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}
.navbar-toggler {
    border: 1px solid var(--border) !important;
    padding: 0.35rem 0.6rem;
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(148,163,184,1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}
.nav-cta {
    background: var(--gradient) !important;
    color: #000 !important;
    font-weight: 600 !important;
    padding: 0.45rem 1.2rem !important;
    border-radius: 50px !important;
}
.nav-cta:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.4);
}

/* Mobile navbar */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: var(--bg-secondary);
        border-radius: var(--radius-md);
        padding: 1rem;
        margin-top: 0.75rem;
        border: 1px solid var(--border);
    }
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    padding: 7rem 0 5rem;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 20%, rgba(var(--accent-rgb),0.08), transparent),
        radial-gradient(ellipse 60% 50% at 80% 80%, rgba(var(--accent2-rgb),0.06), transparent);
    pointer-events: none;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(var(--accent-rgb), 0.1);
    border: 1px solid rgba(var(--accent-rgb), 0.25);
    color: var(--accent);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease;
}
.hero h1 {
    font-size: clamp(2.5rem, 5.5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease 0.1s both;
}
.hero h1 .text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero .lead {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.8;
    animation: fadeInUp 0.6s ease 0.2s both;
}
.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
    animation: fadeInUp 0.6s ease 0.3s both;
}
.hero-visual {
    position: relative;
    animation: fadeInUp 0.8s ease 0.4s both;
}

/* Hero floating card */
.hero-float-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    position: relative;
    overflow: hidden;
}
.hero-float-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: var(--radius-lg);
    background: var(--gradient);
    z-index: -1;
    opacity: 0.15;
}
.hero-code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent3);
    line-height: 2;
}
.hero-code .comment { color: var(--text-muted); }
.hero-code .keyword { color: var(--accent2); }
.hero-code .string  { color: var(--accent3); }
.hero-code .func    { color: var(--accent); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-glow {
    background: var(--gradient);
    color: #000;
    font-weight: 700;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.3);
}
.btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(var(--accent-rgb), 0.45);
    color: #000;
}
.btn-glow::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: translateX(-100%);
    transition: 0.5s;
}
.btn-glow:hover::after { transform: translateX(100%); }

.btn-outline-glow {
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    border: 1.5px solid var(--border);
    font-size: 1rem;
    transition: var(--transition);
}
.btn-outline-glow:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.06);
    transform: translateY(-2px);
}

.btn-sm-glow {
    padding: 0.5rem 1.4rem;
    font-size: 0.9rem;
}

/* ============================================================
   SECTION STYLING
   ============================================================ */
section {
    position: relative;
    z-index: 1;
}
.section-padding {
    padding: 6rem 0;
}
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}
.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 0.75rem;
}
.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.2;
    margin-bottom: 1rem;
}
.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
}
.section-divider {
    width: 60px;
    height: 3px;
    background: var(--gradient);
    border-radius: 3px;
    margin: 1rem auto 0;
}

/* ============================================================
   CARDS
   ============================================================ */
.card-dark {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
}
.card-dark::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient);
    opacity: 0;
    transition: var(--transition);
}
.card-dark:hover {
    border-color: var(--border-glow);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}
.card-dark:hover::before { opacity: 1; }

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
}
.card-icon.purple {
    background: rgba(var(--accent2-rgb), 0.1);
    color: var(--accent2);
}
.card-icon.green {
    background: rgba(var(--accent3-rgb), 0.1);
    color: var(--accent3);
}

.card-dark h3, .card-dark h4, .card-dark h5 {
    font-weight: 700;
    margin-bottom: 0.75rem;
}
.card-dark p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}
.card-dark .card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 1rem;
    transition: var(--transition);
}
.card-dark .card-link:hover { gap: 0.7rem; }

/* Pricing / Certification Cards */
.card-cert {
    text-align: center;
    padding: 2.5rem 2rem;
}
.card-cert .level-badge {
    display: inline-block;
    padding: 0.3rem 0.9rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}
.level-foundation { background: rgba(var(--accent3-rgb), 0.15); color: var(--accent3); }
.level-engineer   { background: rgba(var(--accent-rgb), 0.15); color: var(--accent); }
.level-professional { background: rgba(var(--accent2-rgb), 0.15); color: var(--accent2); }
.level-architect  { background: rgba(255,183,77,0.15); color: #ffb74d; }

.card-cert h4 { font-size: 1.25rem; }
.card-cert .cert-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    text-align: left;
}
.card-cert .cert-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.card-cert .cert-list li i { color: var(--accent3); font-size: 0.8rem; }

/* Featured Card */
.card-featured {
    border-color: rgba(var(--accent-rgb), 0.3);
    box-shadow: var(--shadow-glow);
}
.card-featured::before { opacity: 1; }

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 3rem 0;
}
.stat-item {
    text-align: center;
    padding: 1rem;
}
.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}
.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 0.25rem;
}

/* ============================================================
   COURSE / CERTIFICATION GRID
   ============================================================ */
.course-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.course-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}
.course-card-header {
    padding: 1.75rem 1.75rem 0;
}
.course-card-body {
    padding: 1rem 1.75rem 1.75rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.course-card-body p { flex-grow: 1; }
.course-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.tag-aiops { background: rgba(var(--accent-rgb), 0.12); color: var(--accent); }
.tag-mlops { background: rgba(var(--accent2-rgb), 0.12); color: var(--accent2); }

.course-duration {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    height: 100%;
}
.testimonial-card .stars { color: #fbbf24; margin-bottom: 1rem; }
.testimonial-card blockquote {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 1.5rem;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: #000;
}
.testimonial-name { font-weight: 600; font-size: 0.95rem; }
.testimonial-role { color: var(--text-muted); font-size: 0.8rem; }

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(var(--accent-rgb),0.06), transparent 70%);
    pointer-events: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer-main {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 4rem 0 0;
}
.footer-brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    display: inline-block;
}
.footer-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}
.footer-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li { margin-bottom: 0.6rem; }
.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}
.footer-links a:hover { color: var(--accent); padding-left: 4px; }

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.footer-contact-item i {
    color: var(--accent);
    font-size: 1rem;
    margin-top: 3px;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 1.5rem 0;
    margin-top: 3rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================================
   PAGE HEADERS (inner pages)
   ============================================================ */
.page-header {
    padding: 8rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 50% at 50% 30%, rgba(var(--accent-rgb),0.07), transparent),
        radial-gradient(ellipse 50% 40% at 80% 70%, rgba(var(--accent2-rgb),0.05), transparent);
    pointer-events: none;
}
.page-header h1 {
    font-size: clamp(2.2rem, 4.5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -1px;
}
.page-header .breadcrumb {
    justify-content: center;
    font-size: 0.85rem;
}
.page-header .breadcrumb-item a { color: var(--text-muted); }
.page-header .breadcrumb-item.active { color: var(--accent); }
.breadcrumb-item + .breadcrumb-item::before { color: var(--text-muted) !important; }

/* ============================================================
   CONTACT FORM
   ============================================================ */
.form-dark .form-control,
.form-dark .form-select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    transition: var(--transition);
}
.form-dark .form-control:focus,
.form-dark .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.15);
    background: var(--bg-card);
    color: var(--text-primary);
}
.form-dark .form-control::placeholder { color: var(--text-muted); }
.form-dark .form-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* ============================================================
   FEATURE LIST (checkmarks)
   ============================================================ */
.feature-list {
    list-style: none;
    padding: 0;
}
.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.6rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}
.feature-list li i {
    color: var(--accent3);
    font-size: 1rem;
    margin-top: 3px;
    flex-shrink: 0;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.stagger-children .animate-on-scroll:nth-child(1) { transition-delay: 0.05s; }
.stagger-children .animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.stagger-children .animate-on-scroll:nth-child(3) { transition-delay: 0.15s; }
.stagger-children .animate-on-scroll:nth-child(4) { transition-delay: 0.2s; }
.stagger-children .animate-on-scroll:nth-child(5) { transition-delay: 0.25s; }
.stagger-children .animate-on-scroll:nth-child(6) { transition-delay: 0.3s; }
.stagger-children .animate-on-scroll:nth-child(7) { transition-delay: 0.35s; }
.stagger-children .animate-on-scroll:nth-child(8) { transition-delay: 0.4s; }

/* Pulse dot */
.pulse-dot {
    width: 8px; height: 8px;
    background: var(--accent3);
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

/* ============================================================
   RESPONSIVE FINE-TUNING
   ============================================================ */
@media (max-width: 767.98px) {
    .hero { min-height: auto; padding: 6rem 0 3rem; }
    .section-padding { padding: 4rem 0; }
    .card-dark { padding: 1.5rem; }
    .stat-number { font-size: 2rem; }
    .hero-float-card { display: none; }
    .footer-main .col-lg-3 { margin-bottom: 2rem; }
}

@media (min-width: 768px) and (max-width: 991.98px) {
    .hero { min-height: 70vh; }
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.text-gradient-2 {
    background: var(--gradient2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.text-gradient-3 {
    background: var(--gradient3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.text-accent  { color: var(--accent) !important; }
.text-accent2 { color: var(--accent2) !important; }
.text-accent3 { color: var(--accent3) !important; }
.bg-dark-card { background: var(--bg-card); }
.border-glow  { border-color: var(--border-glow) !important; }
.font-mono    { font-family: var(--font-mono); }