/*
=================================================================
    INTO GEMOLOGY — COURSES PAGE STYLESHEET
    courses.css
=================================================================

    TABLE OF CONTENTS
    -----------------
    01. COURSES HERO
    02. PATH INTRO
    03. COURSE SECTIONS
    04. COURSE CARDS
    05. COURSE TAGS
    06. PREREQUISITE NOTICE
    07. COURSE DRAWER
    08. COURSE FRAGMENT (drawer content)
    09. BOTTOM CTA
    10. RESPONSIVE

=================================================================
*/


/* =================================================================
   01. COURSES HERO
================================================================= */

.courses-hero {
    background: var(--color-bg);
    padding: 160px var(--section-padding-x) 80px;
    text-align: center;
}

.courses-hero-inner {
    max-width: 800px;
    margin: 0 auto;
}

.courses-hero-eyebrow {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-gold);
    font-weight: 600;
    margin-bottom: 20px;
}

.courses-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 24px;
}

.courses-hero h1 span {
    color: var(--color-hero-blue);
}

.courses-hero-sub {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    max-width: 620px;
    margin: 0 auto 32px;
}

.courses-trust-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-muted);
    flex-wrap: wrap;
}


/* =================================================================
   02. PATH INTRO
================================================================= */

.path-intro {
    background: var(--color-white);
    padding: 60px var(--section-padding-x);
    border-bottom: 1px solid var(--color-border);
}

.path-intro-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.path-intro-card {
    flex: 1;
    min-width: 220px;
    max-width: 280px;
    padding: 30px 24px;
    border: 1.5px solid var(--color-border-mid);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.path-intro-card:hover {
    border-color: var(--color-gold);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.12);
}

.path-intro-start  { border-color: var(--color-primary); }
.path-intro-academic { border-color: var(--color-hero-blue); }
.path-intro-trading  { border-color: var(--color-gold); }

.path-intro-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
}

.path-intro-card p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.path-intro-cta {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-primary);
    margin-top: 8px;
}

.path-intro-arrow,
.path-intro-or {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    font-weight: 300;
    flex-shrink: 0;
}

.path-intro-or {
    font-style: italic;
    font-size: 0.9rem;
}


/* =================================================================
   03. COURSE SECTIONS
================================================================= */

.courses-section {
    padding: 80px var(--section-padding-x);
    background: var(--color-bg);
}

.courses-section-alt {
    background: var(--color-white);
}

.courses-section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section-label {
    margin-bottom: 48px;
}

.section-label h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    margin: 8px 0 12px;
}

.section-label p {
    font-size: 1rem;
    color: var(--color-text-muted);
    max-width: 560px;
    line-height: 1.6;
}

.section-label-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-text-muted);
    padding: 4px 12px;
    border: 1px solid var(--color-border-mid);
    border-radius: 50px;
}

.section-label-tag-academic { color: var(--color-hero-blue); border-color: var(--color-hero-blue); }
.section-label-tag-trading  { color: var(--color-gold);      border-color: var(--color-gold); }


/* =================================================================
   04. COURSE CARDS
================================================================= */

.course-grid {
    display: grid;
    gap: 28px;
}

.course-grid-2 { grid-template-columns: repeat(2, 1fr); }
.course-grid-4 { grid-template-columns: repeat(4, 1fr); }

.course-card {
    background: var(--color-white);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.courses-section-alt .course-card {
    background: var(--color-bg);
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    border-color: var(--color-gold);
}

.course-card-featured {
    border-color: var(--color-primary);
}

.course-card-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.course-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.course-card:hover .course-card-image img {
    transform: scale(1.04);
}

.course-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.course-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course-type {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-muted);
    font-weight: 600;
}

.course-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    font-family: var(--font-display);
}

.course-card-body h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    line-height: 1.2;
}

.course-card-body p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    flex: 1;
}

.btn-course-view {
    margin-top: auto;
    padding: 10px 20px;
    background: none;
    border: 1.5px solid var(--color-text);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--color-text);
    font-family: var(--font-body);
}

.btn-course-view:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}


/* =================================================================
   05. COURSE TAGS (on card images)
================================================================= */

.course-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 4px 10px;
    border-radius: 50px;
}

.course-tag-required  { background: var(--color-primary); color: var(--color-white); }
.course-tag-academic  { background: var(--color-hero-blue); color: var(--color-white); }
.course-tag-trading   { background: var(--color-gold); color: var(--color-white); }
.course-tag-csr       { background: #2d6a4f; color: var(--color-white); }
.course-tag-type      { background: rgba(0,0,0,0.5); color: var(--color-white); left: auto; right: 14px; }

.path-badge {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 4px 10px;
    border-radius: 50px;
    background: var(--color-primary);
    color: var(--color-white);
}

.path-badge-academic { background: var(--color-hero-blue); }
.path-badge-trading  { background: var(--color-gold); }


/* =================================================================
   06. PREREQUISITE NOTICE
================================================================= */

.path-prerequisite {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 8px;
    padding: 10px 16px;
    margin-bottom: 32px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-muted);
}


/* =================================================================
   07. COURSE DRAWER
================================================================= */

.course-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 400;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
}

.course-drawer-overlay.open {
    opacity: 1;
    visibility: visible;
}

.course-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 540px;
    max-width: 95vw;
    height: 100%;
    background: var(--color-white);
    z-index: 500;
    overflow-y: auto;
    transition: right 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    box-shadow: -20px 0 60px rgba(0,0,0,0.12);
}

.course-drawer.open {
    right: 0;
}

.course-drawer-close {
    position: sticky;
    top: 20px;
    float: right;
    margin: 20px 20px 0 0;
    width: 40px;
    height: 40px;
    background: var(--color-bg);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 10;
    flex-shrink: 0;
}

.course-drawer-close:hover {
    background: var(--color-gold);
}

.course-drawer-close svg {
    width: 18px;
    height: 18px;
    stroke: var(--color-text);
    stroke-width: 2;
    fill: none;
}

.course-drawer-close:hover svg {
    stroke: var(--color-white);
}

.course-drawer-content {
    padding: 0 32px 60px;
    clear: both;
}

.course-drawer-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    gap: 20px;
    color: var(--color-text-muted);
}

.drawer-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--color-border-mid);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.course-drawer-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 60px 0;
    color: var(--color-text-muted);
    text-align: center;
}


/* =================================================================
   08. COURSE FRAGMENT (drawer content styles)
================================================================= */

.fragment-inner {
    padding-top: 20px;
}

.fragment-hero-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 24px;
}

.fragment-header {
    margin-bottom: 32px;
}

.fragment-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

/* Fragment tags inherit .course-tag but are not absolutely positioned */
.fragment-tags .course-tag {
    position: static;
}

.fragment-header-text h2 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    line-height: 1.1;
    margin-bottom: 8px;
}

.fragment-tagline {
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
    font-style: italic;
}

.fragment-price-row {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.fragment-price {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
}

.fragment-body {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.fragment-prereq {
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.fragment-section h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}

.fragment-section p {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 12px;
}

.fragment-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.fragment-list li {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    padding-left: 16px;
    position: relative;
    line-height: 1.5;
}

.fragment-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-gold);
    font-size: 0.8rem;
}

.fragment-list-plain li::before {
    display: none;
}

.fragment-list-plain li {
    padding-left: 0;
}

.fragment-list strong {
    color: var(--color-text);
    font-weight: 600;
}

.fragment-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.fragment-col h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}

.fragment-cta-bar {
    background: var(--color-bg);
    border-radius: 12px;
    padding: 28px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    border: 1px solid var(--color-border);
}

.fragment-cta-bar-community {
    background: rgba(45, 106, 79, 0.05);
    border-color: rgba(45, 106, 79, 0.2);
}

.fragment-cta-bar p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin: 0;
}


/* =================================================================
   09. BOTTOM CTA
================================================================= */

.courses-bottom-cta {
    background: var(--color-text);
    padding: 100px var(--section-padding-x);
    text-align: center;
}

.courses-bottom-cta-inner {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.courses-bottom-cta h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--color-white);
}

.courses-bottom-cta p {
    font-size: 1rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}


/* =================================================================
   10. RESPONSIVE
================================================================= */

@media (max-width: 1024px) {
    .course-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .courses-hero  { padding-top: 120px; }
    .course-grid-2 { grid-template-columns: 1fr; }
    .course-grid-4 { grid-template-columns: 1fr; }

    .path-intro-inner {
        flex-direction: column;
        align-items: stretch;
    }

    .path-intro-card { max-width: 100%; }
    .path-intro-arrow { display: none; }

    .fragment-two-col { grid-template-columns: 1fr; }

    .fragment-cta-bar {
        flex-direction: column;
        text-align: center;
    }

    .course-drawer { width: 100%; }
}

/* WhatsApp enroll button */
.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all var(--transition-luxury);
    box-shadow: var(--shadow-soft);
}

.btn-whatsapp:hover {
    background: #25D366;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn-whatsapp svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    flex-shrink: 0;
}

.fragment-samples {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.sample-pill {
    font-size: 0.78rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 50px;
    border: 1px solid var(--color-border-mid);
    color: var(--color-text-muted);
    background: var(--color-bg);
}