/* =========================================
   Header Section Refinements
   ========================================= */

.page-header {
    padding-top: 1rem;
}

/* Accent Tag Pill */
.header-tag {
    display: inline-block;
    padding: 5px 16px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: #4f46e5;
    background: #eef2ff;
    border-radius: 20px;
    border: 1px solid rgba(79, 70, 229, 0.15);
}

/* Gradient Display Title */
.page-title {
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #0f172a;
    background: linear-gradient(135deg, #0f172a 0%, #334155 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Descriptive Subtitle */
.page-subtitle {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #64748b;
    max-width: 580px;
    font-weight: 400;
}

/* =========================================
   Interactive Back Button
   ========================================= */

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    font-size: 0.88rem;
    font-weight: 600;
    color: #4b5563;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
    transition: all 0.2s ease;
}

.btn-back i {
    font-size: 1rem;
    transition: transform 0.2s ease;
}

.btn-back:hover {
    color: #111827;
    background: #f9fafb;
    border-color: #d1d5db;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
}

.btn-back:hover i {
    transform: translateX(-3px);
}

/* =========================================
   Compact Topic Card & Base Flex Structure
   ========================================= */

.ml-topic-card {
    position: relative;
    padding: 24px 20px 20px;
    border-radius: 20px;
    box-sizing: border-box;
    text-align: center;
    background: #ffffff;
    border: 2px solid #e5e7eb; 
    display: flex;
    flex-direction: column;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.25s ease;
}

/* Link Wrapper */
.ml-topic-card a {
    width: 100%;
    height: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

/* =========================================
   Icon Ring & Glow Effect
   ========================================= */

.icon-glow-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 50%;
    margin-bottom: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.topic-number {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.1rem;
    border: 1px solid rgba(0, 0, 0, 0.08);
}

/* =========================================
   Typography & Height Normalization
   ========================================= */

.ml-topic-card .card-title {
    margin: 0 0 8px;
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
    min-height: 3rem; 
    display: flex;
    align-items: center;
    justify-content: center;
}

.ml-topic-card .card-subtitle {
    margin: 0 0 16px;
    font-size: 0.92rem;
    line-height: 1.45;
    color: #4b5563;
    min-height: 2.7rem; 
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Card Horizontal Ruler */
.card-divider {
    width: 100%;
    border: 0;
    border-top: 1px solid #e5e7eb;
    margin: 16px 0 12px 0;
    opacity: 0.8;
}

/* =========================================
   Bottom Action Row & Dynamic CTA
   ========================================= */

.card-footer-action {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 700;
    font-size: 0.88rem;
    text-transform: capitalize;
    color: #111827;
}

.card-footer-action span:first-child {
    display: inline-block;
    color: inherit;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.topic-arrow {
    font-size: 1.2rem;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* =========================================
   Category Badges
   ========================================= */

.card-meta {
    margin-top: auto;
    margin-bottom: 14px;
}

.topic-badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    border-radius: 12px;
    transition: all 0.2s ease;
}

/* =========================================
   Hover & Micro-Interactions
   ========================================= */

.ml-topic-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px -8px rgba(0, 0, 0, 0.1);
}

.ml-topic-card:hover .icon-glow-wrapper {
    transform: scale(1.08);
}

.ml-topic-card:hover .card-footer-action span:first-child {
    transform: translateX(3px);
}

.ml-topic-card:hover .topic-arrow {
    transform: translateX(6px);
}

/* =========================================
   Dynamic Card Themes (Borders, Icons, Badges)
   ========================================= */

/* 1 - Blue */
.ml-topic-card-1 { border-color: #2b5282; }
.ml-topic-card-1 .icon-glow-wrapper { background: #eef2ff; }
.ml-topic-card-1 .topic-number { background: #ffffff; color: #2b5282; }
.ml-topic-card-1 .card-footer-action { color: #2b5282; }
.ml-topic-card-1 .topic-badge { background: #eef2ff; color: #2b5282; border: 1px solid rgba(43, 82, 130, 0.18); }
.ml-topic-card-1:hover { border-color: #2b5282; }

/* 2 - Purple */
.ml-topic-card-2 { border-color: #6b21a8; }
.ml-topic-card-2 .icon-glow-wrapper { background: #f3efff; }
.ml-topic-card-2 .topic-number { background: #ffffff; color: #6b21a8; }
.ml-topic-card-2 .card-footer-action { color: #6b21a8; }
.ml-topic-card-2 .topic-badge { background: #f3efff; color: #6b21a8; border: 1px solid rgba(107, 33, 168, 0.18); }
.ml-topic-card-2:hover { border-color: #6b21a8; }

/* 3 - Green */
.ml-topic-card-3 { border-color: #166534; }
.ml-topic-card-3 .icon-glow-wrapper { background: #eef8f4; }
.ml-topic-card-3 .topic-number { background: #ffffff; color: #166534; }
.ml-topic-card-3 .card-footer-action { color: #166534; }
.ml-topic-card-3 .topic-badge { background: #eef8f4; color: #166534; border: 1px solid rgba(22, 101, 52, 0.18); }
.ml-topic-card-3:hover { border-color: #166534; }

/* 4 - Orange */
.ml-topic-card-4 { border-color: #c2410c; }
.ml-topic-card-4 .icon-glow-wrapper { background: #fff5e9; }
.ml-topic-card-4 .topic-number { background: #ffffff; color: #c2410c; }
.ml-topic-card-4 .card-footer-action { color: #c2410c; }
.ml-topic-card-4 .topic-badge { background: #fff5e9; color: #c2410c; border: 1px solid rgba(194, 65, 12, 0.18); }
.ml-topic-card-4:hover { border-color: #c2410c; }

/* 5 - Teal */
.ml-topic-card-5 { border-color: #0f766e; }
.ml-topic-card-5 .icon-glow-wrapper { background: #edf8fb; }
.ml-topic-card-5 .topic-number { background: #ffffff; color: #0f766e; }
.ml-topic-card-5 .card-footer-action { color: #0f766e; }
.ml-topic-card-5 .topic-badge { background: #edf8fb; color: #0f766e; border: 1px solid rgba(15, 118, 110, 0.18); }
.ml-topic-card-5:hover { border-color: #0f766e; }

/* 6 - Rose/Pink */
.ml-topic-card-6 { border-color: #be185d; }
.ml-topic-card-6 .icon-glow-wrapper { background: #fff0f5; }
.ml-topic-card-6 .topic-number { background: #ffffff; color: #be185d; }
.ml-topic-card-6 .card-footer-action { color: #be185d; }
.ml-topic-card-6 .topic-badge { background: #fff0f5; color: #be185d; border: 1px solid rgba(190, 24, 93, 0.18); }
.ml-topic-card-6:hover { border-color: #be185d; }

/* 7 - Indigo */
.ml-topic-card-7 { border-color: #4338ca; }
.ml-topic-card-7 .icon-glow-wrapper { background: #f3f0ff; }
.ml-topic-card-7 .topic-number { background: #ffffff; color: #4338ca; }
.ml-topic-card-7 .card-footer-action { color: #4338ca; }
.ml-topic-card-7 .topic-badge { background: #f3f0ff; color: #4338ca; border: 1px solid rgba(67, 56, 202, 0.18); }
.ml-topic-card-7:hover { border-color: #4338ca; }

/* 8 - Emerald */
.ml-topic-card-8 { border-color: #047857; }
.ml-topic-card-8 .icon-glow-wrapper { background: #eef7f1; }
.ml-topic-card-8 .topic-number { background: #ffffff; color: #047857; }
.ml-topic-card-8 .card-footer-action { color: #047857; }
.ml-topic-card-8 .topic-badge { background: #eef7f1; color: #047857; border: 1px solid rgba(4, 120, 87, 0.18); }
.ml-topic-card-8:hover { border-color: #047857; }

/* 9 - Amber */
.ml-topic-card-9 { border-color: #b45309; }
.ml-topic-card-9 .icon-glow-wrapper { background: #fff5eb; }
.ml-topic-card-9 .topic-number { background: #ffffff; color: #b45309; }
.ml-topic-card-9 .card-footer-action { color: #b45309; }
.ml-topic-card-9 .topic-badge { background: #fff5eb; color: #b45309; border: 1px solid rgba(180, 83, 9, 0.18); }
.ml-topic-card-9:hover { border-color: #b45309; }

/* 10 - Slate */
.ml-topic-card-10 { border-color: #334155; }
.ml-topic-card-10 .icon-glow-wrapper { background: #f1f5f9; }
.ml-topic-card-10 .topic-number { background: #ffffff; color: #334155; }
.ml-topic-card-10 .card-footer-action { color: #334155; }
.ml-topic-card-10 .topic-badge { background: #f1f5f9; color: #334155; border: 1px solid rgba(51, 65, 85, 0.18); }
.ml-topic-card-10:hover { border-color: #334155; }