/**
 * pages/course-detail.css — Individual course detail page elevation
 * Phase 6 Page-by-Page Polish
 *
 * Polishes the course-hero with mesh, the enrollment sidebar,
 * and curriculum modules. Scoped to body.course-detail-page.
 */

body.course-detail-page .course-hero {
    position: relative;
    isolation: isolate;
}

body.course-detail-page .course-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(ellipse 80% 50% at 25% 30%, rgba(168, 85, 247, 0.14) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 25%, rgba(78, 205, 196, 0.09) 0%, transparent 60%),
        radial-gradient(ellipse 50% 60% at 50% 85%, rgba(245, 158, 11, 0.06) 0%, transparent 60%);
}

body.course-detail-page .course-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.035;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
    background-size: 200px 200px;
}

body.course-detail-page .course-hero>* {
    position: relative;
    z-index: 1;
}

/* Course title — typography polish */
body.course-detail-page .course-hero-title,
body.course-detail-page .course-title {
    letter-spacing: -0.04em;
    text-wrap: balance;
    font-feature-settings: 'kern' 1, 'liga' 1, 'ss01' 1;
}

/* Meta badges — refined hover */
body.course-detail-page .meta-badge,
body.course-detail-page [class*="badge"] {
    transition:
        transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

body.course-detail-page .meta-badge:hover,
body.course-detail-page [class*="badge"]:hover {
    transform: translateY(-2px);
}

/* Curriculum modules — accordion polish */
body.course-detail-page .curriculum-module,
body.course-detail-page [class*="module-card"],
body.course-detail-page [class*="lesson-card"] {
    transition:
        transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        box-shadow 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        border-color 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

body.course-detail-page .curriculum-module:hover,
body.course-detail-page [class*="module-card"]:hover {
    box-shadow:
        0 12px 32px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(168, 85, 247, 0.15);
}

/* Enrollment sidebar — sticky polish */
body.course-detail-page .enroll-sidebar,
body.course-detail-page .enrollment-card,
body.course-detail-page [class*="enroll-cta"] {
    transition: box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

body.course-detail-page .enroll-sidebar:hover,
body.course-detail-page .enrollment-card:hover {
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.4),
        0 0 60px rgba(168, 85, 247, 0.2);
}