/* ─────────────────────────────────────────────
   RK SKILL MISSION — Custom Stylesheet
   Style: Edification-inspired (dark hero, clean cards)
───────────────────────────────────────────── */

:root {
    --rk-primary:   #1a0a6e;
    --rk-secondary: #3b1fa5;
    --rk-dark:      #0d0620;
    --rk-gold:      #ffd700;
    --rk-light:     #f0f4ff;
    --rk-text:      #2a2a3a;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; color: var(--rk-text); }

/* ── Navbar ── */
.navbar {
    padding: 1rem 0;
    transition: background 0.35s, padding 0.35s, box-shadow 0.35s;
    position: fixed; top: 0; width: 100%; z-index: 1000;
    background: transparent;
}
.navbar.scrolled {
    background: var(--rk-primary) !important;
    padding: 0.6rem 0;
    box-shadow: 0 4px 24px rgba(0,0,0,0.35);
}
.navbar-brand .brand-name {
    font-size: 1.3rem; font-weight: 800; color: #fff; letter-spacing: 0.3px;
}
.navbar-brand .brand-sub {
    font-size: 0.7rem; color: var(--rk-gold); display: block;
    letter-spacing: 1.5px; text-transform: uppercase; line-height: 1; margin-top: 1px;
}
.navbar-nav .nav-link {
    color: rgba(255,255,255,0.85) !important;
    font-weight: 500; padding: 0.5rem 1rem !important;
    transition: color 0.2s; font-size: 0.95rem;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active { color: var(--rk-gold) !important; }
.navbar-toggler { border-color: rgba(255,255,255,0.3); }
.navbar-toggler-icon { filter: invert(1); }

/* ── Buttons ── */
.btn-rk {
    background: var(--rk-gold); color: var(--rk-primary);
    font-weight: 700; padding: 13px 34px;
    border-radius: 50px; border: none; font-size: 0.95rem;
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none; display: inline-block;
}
.btn-rk:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(255,215,0,0.4);
    color: var(--rk-primary);
}
.btn-rk-outline {
    background: transparent; color: #fff;
    font-weight: 600; padding: 13px 34px;
    border-radius: 50px; border: 2px solid rgba(255,255,255,0.45);
    font-size: 0.95rem; transition: all 0.25s;
    text-decoration: none; display: inline-block;
}
.btn-rk-outline:hover { border-color: var(--rk-gold); color: var(--rk-gold); }
.btn-rk-sm {
    background: var(--rk-gold); color: var(--rk-primary);
    font-weight: 700; padding: 8px 22px;
    border-radius: 50px; border: none; font-size: 0.85rem;
    text-decoration: none; display: inline-block;
    transition: transform 0.2s, box-shadow 0.2s;
}
.btn-rk-sm:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(255,215,0,0.35);
    color: var(--rk-primary);
}
.btn-rk-sm-outline {
    background: transparent; color: #fff;
    font-weight: 700; padding: 7px 20px;
    border-radius: 50px; border: 2px solid var(--rk-gold); font-size: 0.85rem;
    text-decoration: none; display: inline-block; transition: all 0.2s;
}
.btn-rk-sm-outline:hover { background: var(--rk-gold); color: var(--rk-primary); }

/* ── Navbar dropdown (Student Zone) ── */
.navbar-nav .dropdown-menu {
    background: var(--rk-primary); border: 1px solid rgba(255,255,255,0.12);
    border-radius: 10px; padding: 0.4rem; margin-top: 0.4rem;
}
.navbar-nav .dropdown-item {
    color: rgba(255,255,255,0.85); font-weight: 500; font-size: 0.9rem;
    padding: 0.55rem 1rem; border-radius: 6px;
}
.navbar-nav .dropdown-item:hover,
.navbar-nav .dropdown-item:focus {
    background: rgba(255,215,0,0.12); color: var(--rk-gold);
}

/* ── Hero ── */
.hero {
    min-height: 100vh;
    background: linear-gradient(140deg, #0d0620 0%, #1a0a6e 45%, #3b1fa5 80%, #5534c8 100%);
    display: flex; align-items: center; padding: 120px 0 80px; position: relative; overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image: radial-gradient(circle at 25% 25%, rgba(255,215,0,0.04) 0%, transparent 60%),
                      radial-gradient(circle at 75% 75%, rgba(255,255,255,0.03) 0%, transparent 60%);
}
.hero-dots {
    position: absolute; inset: 0; z-index: 0;
    background-image: radial-gradient(rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 40px 40px;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
    background: rgba(255,215,0,0.12);
    border: 1px solid rgba(255,215,0,0.4);
    color: var(--rk-gold); padding: 6px 20px;
    border-radius: 999px; font-size: 0.82rem;
    font-weight: 600; display: inline-block;
    margin-bottom: 1.5rem; letter-spacing: 1.2px;
    text-transform: uppercase;
}
.hero h1 {
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 800; color: #fff;
    line-height: 1.18; margin-bottom: 1.5rem;
}
.hero h1 .highlight { color: var(--rk-gold); }
.hero .lead {
    color: rgba(255,255,255,0.72);
    font-size: 1.1rem; max-width: 520px; margin-bottom: 2.2rem; line-height: 1.7;
}
.hero-stats-card {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.13);
    border-radius: 20px; padding: 2rem;
    backdrop-filter: blur(16px);
    position: relative; z-index: 1;
}
.hero-stats-card .hs-item { text-align: center; padding: 0.5rem; }
.hero-stats-card .hs-num {
    font-size: 2.2rem; font-weight: 800;
    color: var(--rk-gold); line-height: 1;
}
.hero-stats-card .hs-lbl {
    font-size: 0.78rem; color: rgba(255,255,255,0.65);
    margin-top: 5px; text-transform: uppercase; letter-spacing: 0.5px;
}
.hero-stats-card .divider { border-color: rgba(255,255,255,0.1); margin: 1rem 0; }
.hero-stats-card .cert-row {
    display: flex; align-items: center; gap: 10px;
    background: rgba(255,215,0,0.08);
    border: 1px solid rgba(255,215,0,0.2);
    border-radius: 12px; padding: 0.8rem 1rem;
    margin-top: 1rem;
}
.hero-stats-card .cert-row i { color: var(--rk-gold); font-size: 1.4rem; }
.hero-stats-card .cert-row span {
    font-size: 0.8rem; color: rgba(255,255,255,0.8); line-height: 1.4;
}
.hero-stats-card .cert-row strong { color: var(--rk-gold); display: block; font-size: 0.85rem; }

/* ── Stats Bar ── */
.stats-bar { background: var(--rk-primary); padding: 3rem 0; }
.stat-item { text-align: center; position: relative; }
.stat-item + .stat-item::before {
    content: ''; position: absolute; left: 0; top: 20%;
    height: 60%; width: 1px; background: rgba(255,255,255,0.12);
}
.stat-item .num {
    font-size: 2.6rem; font-weight: 800;
    color: var(--rk-gold); line-height: 1;
}
.stat-item .lbl {
    color: rgba(255,255,255,0.65);
    font-size: 0.88rem; margin-top: 6px;
}

/* ── Section Title ── */
.section-subtitle {
    color: var(--rk-secondary); font-weight: 700;
    font-size: 0.82rem; letter-spacing: 2.5px;
    text-transform: uppercase; display: block;
    margin-bottom: 0.6rem;
}
.section-title {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800; color: var(--rk-text);
    position: relative; display: inline-block; margin-bottom: 0.5rem;
}
.section-title::after {
    content: '';
    position: absolute; bottom: -10px; left: 0;
    width: 52px; height: 4px;
    background: var(--rk-gold); border-radius: 2px;
}
.section-title.center::after { left: 50%; transform: translateX(-50%); }

/* ── Course Cards ── */
.course-card {
    background: #fff; border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.07);
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%; display: flex; flex-direction: column;
}
.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(26,10,110,0.15);
}
.course-card .card-icon-wrap {
    background: linear-gradient(135deg, var(--rk-primary) 0%, var(--rk-secondary) 100%);
    padding: 2.5rem 1rem;
    display: flex; align-items: center; justify-content: center;
}
.course-card .card-icon-wrap i { font-size: 3rem; color: var(--rk-gold); }
.course-card .card-img-wrap { aspect-ratio: 3 / 2; overflow: hidden; background: #fff; }
.course-card .card-img-wrap.is-half { aspect-ratio: 3 / 1; }
.course-card .card-img-wrap img { width: 100%; height: 100%; object-fit: contain; display: block; }
.course-card .card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.course-card .card-body h5 { font-weight: 700; color: var(--rk-text); margin-bottom: 0.5rem; font-size: 1rem; }
.course-card .card-body p { color: #666; font-size: 0.88rem; line-height: 1.6; flex: 1; }
.course-card .card-foot {
    border-top: 1px solid #f0f0f8; padding: 1rem 1.5rem;
    display: flex; align-items: center; justify-content: space-between;
    background: #fafafa;
}
.course-card .duration { font-size: 0.82rem; color: #999; }
.course-card .duration i { margin-right: 4px; }
.course-card .card-link {
    font-size: 0.85rem; font-weight: 700;
    color: var(--rk-secondary); text-decoration: none;
    transition: color 0.2s; display: flex; align-items: center; gap: 4px;
}
.course-card .card-link:hover { color: var(--rk-gold); }

/* ── Why Choose Us ── */
.feature-box {
    background: #fff; border-radius: 18px;
    padding: 2rem 1.5rem; text-align: center;
    box-shadow: 0 4px 18px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s; height: 100%;
}
.feature-box:hover { transform: translateY(-6px); box-shadow: 0 12px 36px rgba(26,10,110,0.12); }
.feature-box .icon-wrap {
    width: 68px; height: 68px;
    background: linear-gradient(135deg, var(--rk-primary), var(--rk-secondary));
    border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1.5rem;
}
.feature-box .icon-wrap i { font-size: 1.7rem; color: var(--rk-gold); }
.feature-box h5 { font-weight: 700; color: var(--rk-text); margin-bottom: 0.5rem; font-size: 1rem; }
.feature-box p { color: #666; font-size: 0.88rem; margin: 0; line-height: 1.6; }

/* ── Testimonials ── */
.testimonial-card {
    background: #fff; border-radius: 18px;
    padding: 2rem; height: 100%;
    box-shadow: 0 4px 18px rgba(0,0,0,0.06);
    border-top: 4px solid var(--rk-gold);
    transition: transform 0.3s;
}
.testimonial-card:hover { transform: translateY(-5px); }
.testimonial-card .stars { color: var(--rk-gold); font-size: 1rem; margin-bottom: 1rem; }
.testimonial-card blockquote {
    color: #555; font-style: italic;
    line-height: 1.7; font-size: 0.9rem;
    margin-bottom: 1.5rem; border: none; padding: 0;
}
.testimonial-card .student { display: flex; align-items: center; gap: 12px; }
.testimonial-card .avatar {
    width: 46px; height: 46px; border-radius: 50%; flex-shrink: 0;
    background: linear-gradient(135deg, var(--rk-primary), var(--rk-secondary));
    display: flex; align-items: center; justify-content: center;
    color: var(--rk-gold); font-weight: 800; font-size: 1rem;
}
.testimonial-card .student strong { display: block; color: var(--rk-text); font-size: 0.95rem; }
.testimonial-card .student span { font-size: 0.82rem; color: #888; }

/* ── CTA ── */
.cta-section {
    background: linear-gradient(135deg, var(--rk-primary) 0%, var(--rk-secondary) 100%);
    padding: 5rem 0; position: relative; overflow: hidden;
}
.cta-section::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 80% 50%, rgba(255,215,0,0.06) 0%, transparent 60%);
}
.cta-section h2 { color: #fff; font-weight: 800; font-size: 2.2rem; }
.cta-section p { color: rgba(255,255,255,0.75); font-size: 1.05rem; }

/* ── Page Header ── */
.page-header {
    background: linear-gradient(140deg, #0d0620 0%, #1a0a6e 60%, #3b1fa5 100%);
    padding: 130px 0 60px; text-align: center;
}
.page-header h1 { color: #fff; font-size: 2.6rem; font-weight: 800; margin-bottom: 0.5rem; }
.page-header p { color: rgba(255,255,255,0.7); margin-bottom: 1rem; }
.page-header .breadcrumb { justify-content: center; background: none; padding: 0; margin: 0; }
.page-header .breadcrumb-item a { color: var(--rk-gold); text-decoration: none; }
.page-header .breadcrumb-item.active { color: rgba(255,255,255,0.6); }
.page-header .breadcrumb-item + .breadcrumb-item::before { color: rgba(255,255,255,0.4); }

/* ── Contact ── */
.contact-info-box {
    background: #fff; border-radius: 18px;
    padding: 2rem; text-align: center;
    box-shadow: 0 4px 18px rgba(0,0,0,0.06); height: 100%;
}
.contact-info-box .icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, var(--rk-primary), var(--rk-secondary));
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1rem;
}
.contact-info-box .icon i { font-size: 1.5rem; color: var(--rk-gold); }
.contact-info-box h6 { font-weight: 700; color: var(--rk-text); margin-bottom: 0.4rem; }
.contact-info-box p { color: #666; font-size: 0.9rem; margin: 0; line-height: 1.6; }
.contact-form-card {
    background: #fff; border-radius: 18px;
    padding: 2.5rem; box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.contact-form-card .form-control,
.contact-form-card .form-select {
    border-radius: 10px; border: 1.5px solid #e5e5f0;
    padding: 0.75rem 1rem; font-size: 0.95rem;
}
.contact-form-card .form-control:focus,
.contact-form-card .form-select:focus {
    border-color: var(--rk-secondary);
    box-shadow: 0 0 0 3px rgba(59,31,165,0.1);
}
.contact-form-card label { font-weight: 600; font-size: 0.88rem; color: var(--rk-text); margin-bottom: 5px; }

/* ── About ── */
.about-img-box { position: relative; }
.about-img-box .img-frame {
    border-radius: 20px; overflow: hidden;
    background: linear-gradient(135deg, var(--rk-primary), var(--rk-secondary));
    padding: 30px; aspect-ratio: 4/3;
    display: flex; align-items: center; justify-content: center; flex-direction: column;
    text-align: center; color: #fff;
}
.about-img-box .img-frame .logo-text {
    font-size: 4rem; font-weight: 900;
    color: var(--rk-gold); line-height: 1;
}
.about-img-box .img-frame .logo-sub { font-size: 1rem; opacity: 0.8; margin-top: 0.5rem; }
.about-img-box .float-badge {
    position: absolute; bottom: -10px; right: -10px;
    background: var(--rk-gold); color: var(--rk-primary);
    border-radius: 14px; padding: 1rem 1.3rem;
    text-align: center; font-weight: 800;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.about-img-box .float-badge .big { font-size: 2rem; line-height: 1; display: block; }
.about-img-box .float-badge .small { font-size: 0.72rem; display: block; }
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li {
    padding: 0.5rem 0; color: #444; font-size: 0.95rem;
    display: flex; align-items: flex-start; gap: 10px;
}
.check-list li i { color: var(--rk-secondary); margin-top: 2px; flex-shrink: 0; font-size: 1rem; }
.mission-card {
    background: #fff; border-radius: 18px;
    padding: 2rem; height: 100%;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    border-left: 5px solid var(--rk-gold);
}
.mission-card h5 { font-weight: 700; color: var(--rk-text); margin-bottom: 0.75rem; }
.mission-card p { color: #666; font-size: 0.92rem; line-height: 1.7; margin: 0; }

/* ── Footer ── */
footer { background: var(--rk-dark); padding: 4.5rem 0 2rem; }
.footer-brand-name { font-size: 1.5rem; font-weight: 900; color: #fff; }
.footer-brand-tag { color: var(--rk-gold); font-style: italic; font-size: 0.88rem; margin-bottom: 0.75rem; }
footer p { color: rgba(255,255,255,0.55); font-size: 0.88rem; line-height: 1.7; }
footer h6 { color: var(--rk-gold); font-weight: 700; font-size: 0.9rem; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 1.2rem; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 0.5rem; }
.footer-links a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 0.88rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--rk-gold); }
.footer-contact-item { display: flex; gap: 10px; margin-bottom: 0.8rem; }
.footer-contact-item i { color: var(--rk-gold); margin-top: 3px; flex-shrink: 0; }
.footer-contact-item span { color: rgba(255,255,255,0.6); font-size: 0.88rem; line-height: 1.5; }
.social-links { display: flex; gap: 8px; margin-top: 0.5rem; }
.social-links a {
    width: 38px; height: 38px; border-radius: 50%;
    background: rgba(255,255,255,0.07);
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,0.65) !important; font-size: 1rem;
    text-decoration: none; transition: background 0.2s, color 0.2s;
}
.social-links a:hover { background: var(--rk-gold); color: var(--rk-primary) !important; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.07);
    margin-top: 3rem; padding-top: 1.5rem;
    display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem;
}
.footer-bottom p { margin: 0; color: rgba(255,255,255,0.35); font-size: 0.82rem; }
.footer-bottom a { color: var(--rk-gold); text-decoration: none; }

/* ── AOS fallback ── */
[data-aos] { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-aos].aos-animate { opacity: 1; transform: none; }
[data-aos="fade-right"] { transform: translateX(-24px); }
[data-aos="fade-right"].aos-animate { transform: none; }
[data-aos="fade-left"] { transform: translateX(24px); }
[data-aos="fade-left"].aos-animate { transform: none; }
[data-aos="zoom-in"] { transform: scale(0.92); }
[data-aos="zoom-in"].aos-animate { transform: scale(1); }

/* ── Utilities ── */
section { padding: 5rem 0; }
.bg-light-purple { background: var(--rk-light); }
.bg-primary-rk { background: var(--rk-primary); }
.text-gold { color: var(--rk-gold) !important; }
.gap-btn { gap: 1rem; display: flex; flex-wrap: wrap; align-items: center; }
</style>