/*
Theme Name:        AI Stock Lens Child
Theme URI:         https://aistocklens.com
Description:       Blocksy child theme for AI Stock Lens — a financial education & tools website.
Author:            AI Stock Lens
Author URI:        https://aistocklens.com
Template:          blocksy
Version:           1.0.0
License:           GNU General Public License v2 or later
License URI:       http://www.gnu.org/licenses/gpl-2.0.html
Text Domain:       aistocklens-child
Tags:              finance, education, calculators, investing
*/

/* ============================================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================================ */
:root {
    /* Brand Colors */
    --color-primary:        #1565C0;
    --color-primary-dark:   #0D47A1;
    --color-primary-light:  #1976D2;
    --color-accent:         #00897B;
    --color-accent-dark:    #00695C;

    /* Neutrals */
    --color-bg:             #F8F9FA;
    --color-bg-white:       #FFFFFF;
    --color-bg-subtle:      #EEF2F7;
    --color-surface:        #FFFFFF;
    --color-border:         #E0E7EF;
    --color-text:           #1A1A2E;
    --color-text-muted:     #6B7280;
    --color-text-light:     #9CA3AF;

    /* Semantic */
    --color-success:        #16A34A;
    --color-warning:        #D97706;
    --color-error:          #DC2626;

    /* Typography */
    --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display:         'Poppins', var(--font-sans);
    --font-mono:            'JetBrains Mono', 'Fira Code', monospace;

    --text-xs:   0.75rem;
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.25rem;
    --text-2xl:  1.5rem;
    --text-3xl:  1.875rem;
    --text-4xl:  2.25rem;
    --text-5xl:  3rem;

    /* Spacing */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Layout */
    --container-max:    1200px;
    --container-wide:   1440px;
    --container-narrow: 800px;

    /* Radius */
    --radius-sm:   4px;
    --radius-md:   8px;
    --radius-lg:   12px;
    --radius-xl:   16px;
    --radius-2xl:  24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --shadow-md:  0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);
    --shadow-lg:  0 10px 30px rgba(0,0,0,.10), 0 4px 8px rgba(0,0,0,.06);
    --shadow-xl:  0 20px 60px rgba(0,0,0,.12);

    /* Transitions */
    --transition-fast:   150ms ease;
    --transition-base:   250ms ease;
    --transition-slow:   400ms ease;
}

/* ============================================================
   BASE RESET & TYPOGRAPHY
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, var(--text-5xl)); }
h2 { font-size: clamp(1.5rem, 3.5vw, var(--text-4xl)); }
h3 { font-size: clamp(1.25rem, 2.5vw, var(--text-3xl)); }
h4 { font-size: var(--text-xl); }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover { color: var(--color-primary-dark); }

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

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.asl-container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
}

.asl-container--wide   { max-width: var(--container-wide); }
.asl-container--narrow { max-width: var(--container-narrow); }

.asl-section {
    padding-block: var(--space-20);
}

.asl-section--sm  { padding-block: var(--space-12); }
.asl-section--lg  { padding-block: var(--space-24); }
.asl-section--alt { background-color: var(--color-bg-subtle); }

/* ============================================================
   BUTTONS
   ============================================================ */
.asl-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.asl-btn--primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.asl-btn--primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.asl-btn--outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.asl-btn--outline:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-1px);
}

.asl-btn--accent {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}
.asl-btn--accent:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #fff;
}

.asl-btn--lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
    border-radius: var(--radius-lg);
}

/* ============================================================
   CARDS
   ============================================================ */
.asl-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.asl-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
    border-color: var(--color-primary-light);
}

.asl-card__icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: var(--color-bg-subtle);
    font-size: 1.5rem;
    margin-bottom: var(--space-4);
    flex-shrink: 0;
}

.asl-card__title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.asl-card__desc {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ============================================================
   SECTION HEADINGS
   ============================================================ */
.asl-section-head {
    text-align: center;
    margin-bottom: var(--space-12);
}

.asl-section-head__eyebrow {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(21,101,192,.08);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.asl-section-head__title {
    font-size: clamp(1.5rem, 3vw, var(--text-4xl));
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--color-text);
}

.asl-section-head__subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    margin-inline: auto;
}

/* ============================================================
   GRIDS
   ============================================================ */
.asl-grid {
    display: grid;
    gap: var(--space-6);
}

.asl-grid--2 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.asl-grid--3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.asl-grid--4 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

@media (min-width: 768px) {
    .asl-grid--2 { grid-template-columns: repeat(2, 1fr); }
    .asl-grid--3 { grid-template-columns: repeat(3, 1fr); }
}

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

/* ============================================================
   BADGES & TAGS
   ============================================================ */
.asl-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.asl-badge--blue   { background: rgba(21,101,192,.1);  color: var(--color-primary); }
.asl-badge--green  { background: rgba(22,163,74,.1);   color: var(--color-success); }
.asl-badge--orange { background: rgba(217,119,6,.1);   color: var(--color-warning); }

/* ============================================================
   HERO
   ============================================================ */
.asl-hero {
    background: linear-gradient(135deg, #0D47A1 0%, #1565C0 40%, #1976D2 70%, #00897B 100%);
    padding-block: var(--space-24);
    overflow: hidden;
    position: relative;
}

.asl-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    pointer-events: none;
}

.asl-hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    gap: var(--space-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .asl-hero__inner { grid-template-columns: 1fr 1fr; }
}

.asl-hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255,255,255,.15);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,.2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    color: rgba(255,255,255,.9);
    margin-bottom: var(--space-6);
}

.asl-hero__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin-bottom: var(--space-6);
}

.asl-hero__title span {
    color: #80DEEA;
}

.asl-hero__subtitle {
    font-size: var(--text-lg);
    color: rgba(255,255,255,.85);
    line-height: 1.7;
    margin-bottom: var(--space-8);
    max-width: 520px;
}

.asl-hero__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.asl-hero__trust {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-top: var(--space-8);
    flex-wrap: wrap;
}

.asl-hero__trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: rgba(255,255,255,.75);
}

.asl-hero__trust-item span.dot {
    width: 6px;
    height: 6px;
    background: #80DEEA;
    border-radius: 50%;
}

/* Hero visual */
.asl-hero__visual {
    display: none;
}

@media (min-width: 1024px) {
    .asl-hero__visual {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

.asl-hero__dashboard {
    background: rgba(255,255,255,.08);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    width: 100%;
    max-width: 440px;
}

.asl-hero__dashboard-title {
    color: rgba(255,255,255,.9);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-6);
    letter-spacing: .04em;
}

.asl-hero__stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.asl-hero__stat {
    background: rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    text-align: center;
}

.asl-hero__stat-val {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: #80DEEA;
    display: block;
}

.asl-hero__stat-label {
    font-size: var(--text-xs);
    color: rgba(255,255,255,.7);
    margin-top: var(--space-1);
}

/* ============================================================
   CALCULATOR CARDS
   ============================================================ */
.asl-calc-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.asl-calc-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.asl-calc-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--color-primary-light);
    color: inherit;
}

.asl-calc-card:hover::after { transform: scaleX(1); }

.asl-calc-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xl);
    font-size: 1.75rem;
    margin-bottom: var(--space-5);
    flex-shrink: 0;
}

.asl-calc-card__title {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.asl-calc-card__desc {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
    flex: 1;
}

.asl-calc-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-primary);
    margin-top: var(--space-4);
}

/* ============================================================
   LEARNING PATH CARDS
   ============================================================ */
.asl-path-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.asl-path-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.asl-path-card__header {
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
}

.asl-path-card__header--green {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
}

.asl-path-card__icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-4);
    display: block;
}

.asl-path-card__title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: #fff;
    margin-bottom: var(--space-2);
}

.asl-path-card__subtitle {
    font-size: var(--text-sm);
    color: rgba(255,255,255,.8);
}

.asl-path-card__lessons {
    padding: var(--space-6);
    list-style: none;
    margin: 0;
}

.asl-path-card__lesson {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.asl-path-card__lesson:last-child { border-bottom: none; }

.asl-path-card__lesson:hover { color: var(--color-primary); }

.asl-path-card__lesson-num {
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    background: var(--color-bg-subtle);
    border-radius: 50%;
    font-size: var(--text-xs);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.asl-path-card__footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
}

/* ============================================================
   ARTICLE CARDS
   ============================================================ */
.asl-article-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.asl-article-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.asl-article-card__img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    background: var(--color-bg-subtle);
}

.asl-article-card__body {
    padding: var(--space-6);
}

.asl-article-card__cat {
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: var(--space-3);
    display: block;
}

.asl-article-card__title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.asl-article-card__title a { color: inherit; }
.asl-article-card__title a:hover { color: var(--color-primary); }

.asl-article-card__excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.asl-article-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-xs);
    color: var(--color-text-light);
}

/* ============================================================
   FAQ
   ============================================================ */
.asl-faq__item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-3);
    background: var(--color-surface);
}

.asl-faq__question {
    width: 100%;
    padding: var(--space-5) var(--space-6);
    background: none;
    border: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    transition: background var(--transition-fast);
}

.asl-faq__question:hover { background: var(--color-bg-subtle); }

.asl-faq__question[aria-expanded="true"] {
    color: var(--color-primary);
    background: rgba(21,101,192,.04);
}

.asl-faq__icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-bg-subtle);
    transition: transform var(--transition-base), background var(--transition-base);
}

.asl-faq__question[aria-expanded="true"] .asl-faq__icon {
    transform: rotate(45deg);
    background: var(--color-primary);
    color: #fff;
}

.asl-faq__answer {
    display: none;
    padding: 0 var(--space-6) var(--space-5);
    font-size: var(--text-base);
    color: var(--color-text-muted);
    line-height: 1.8;
    border-top: 1px solid var(--color-border);
}

.asl-faq__answer.is-open { display: block; }

/* ============================================================
   BREADCRUMBS
   ============================================================ */
.asl-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    padding-block: var(--space-4);
}

.asl-breadcrumb a { color: var(--color-primary); }
.asl-breadcrumb a:hover { text-decoration: underline; }
.asl-breadcrumb__sep { color: var(--color-text-light); }

/* ============================================================
   SIDEBAR & TOC
   ============================================================ */
.asl-toc {
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.asl-toc__title {
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
}

.asl-toc__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.asl-toc__list li {
    padding: var(--space-1) 0;
    border-bottom: 1px solid var(--color-border);
}

.asl-toc__list li:last-child { border-bottom: none; }

.asl-toc__list a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.asl-toc__list a:hover { color: var(--color-primary); }

/* ============================================================
   ADENSE SLOTS
   ============================================================ */
.asl-ad-slot {
    width: 100%;
    min-height: 90px;
    background: var(--color-bg-subtle);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: var(--text-xs);
    margin-block: var(--space-8);
    overflow: hidden;
}

/* ============================================================
   BLOG LAYOUT
   ============================================================ */
.asl-blog-layout {
    display: grid;
    gap: var(--space-10);
}

@media (min-width: 1024px) {
    .asl-blog-layout {
        grid-template-columns: 1fr 320px;
    }
}

.asl-sidebar__widget {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.asl-sidebar__widget-title {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-text);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--space-4);
}

/* ============================================================
   FOOTER
   ============================================================ */
.asl-footer {
    background: #0D1B2A;
    color: rgba(255,255,255,.75);
    padding-block: var(--space-16);
}

.asl-footer__grid {
    display: grid;
    gap: var(--space-10);
}

@media (min-width: 640px) {
    .asl-footer__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .asl-footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.asl-footer__brand-name {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 800;
    color: #fff;
    margin-bottom: var(--space-3);
}

.asl-footer__tagline {
    font-size: var(--text-sm);
    line-height: 1.7;
    color: rgba(255,255,255,.6);
    margin-bottom: var(--space-6);
}

.asl-footer__col-title {
    font-size: var(--text-sm);
    font-weight: 700;
    color: #fff;
    letter-spacing: .06em;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.asl-footer__links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.asl-footer__links li { margin-bottom: var(--space-2); }

.asl-footer__links a {
    color: rgba(255,255,255,.6);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.asl-footer__links a:hover { color: #fff; }

.asl-footer__bottom {
    margin-top: var(--space-12);
    padding-top: var(--space-6);
    border-top: 1px solid rgba(255,255,255,.1);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: rgba(255,255,255,.5);
}

.asl-footer__disclaimer {
    margin-top: var(--space-6);
    padding: var(--space-4);
    background: rgba(255,255,255,.04);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    color: rgba(255,255,255,.4);
    line-height: 1.6;
    text-align: center;
}

/* ============================================================
   LEARN PAGE
   ============================================================ */
.asl-learn-hero {
    background: linear-gradient(135deg, #1565C0 0%, #0D47A1 100%);
    padding-block: var(--space-16);
    color: #fff;
    text-align: center;
}

.asl-learn-hero h1 { color: #fff; }
.asl-learn-hero p { color: rgba(255,255,255,.8); }

.asl-module-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.asl-module-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.asl-module-card__header {
    padding: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.asl-module-card__lessons {
    padding: var(--space-4) var(--space-6);
}

.asl-module-card__lesson-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.asl-module-card__lesson-item:last-child { border-bottom: none; }
.asl-module-card__lesson-item:hover { color: var(--color-primary); }

/* ============================================================
   SINGLE LESSON
   ============================================================ */
.asl-lesson-layout {
    display: grid;
    gap: var(--space-10);
}

@media (min-width: 1024px) {
    .asl-lesson-layout { grid-template-columns: 280px 1fr; }
}

.asl-lesson-nav {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: sticky;
    top: var(--space-6);
    max-height: calc(100vh - 100px);
    overflow-y: auto;
}

.asl-lesson-nav__title {
    padding: var(--space-4) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 700;
    background: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border);
}

.asl-lesson-nav__list {
    list-style: none;
    margin: 0;
    padding: var(--space-2) 0;
}

.asl-lesson-nav__item a {
    display: block;
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.asl-lesson-nav__item a:hover,
.asl-lesson-nav__item.active a {
    color: var(--color-primary);
    background: rgba(21,101,192,.05);
    padding-left: var(--space-6);
}

.asl-lesson-content {
    min-width: 0;
}

.asl-lesson-content h2 {
    font-size: var(--text-3xl);
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.asl-lesson-content h2:first-child { margin-top: 0; border-top: none; padding-top: 0; }

.asl-lesson-content p {
    margin-bottom: var(--space-5);
    line-height: 1.8;
}

.asl-lesson-content ul, .asl-lesson-content ol {
    padding-left: var(--space-6);
    margin-bottom: var(--space-5);
}

.asl-lesson-content li {
    margin-bottom: var(--space-2);
    line-height: 1.7;
}

/* Key takeaway box */
.asl-callout {
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-6);
    margin-block: var(--space-6);
    border-left: 4px solid;
}

.asl-callout--info {
    background: rgba(21,101,192,.06);
    border-color: var(--color-primary);
}

.asl-callout--tip {
    background: rgba(22,163,74,.06);
    border-color: var(--color-success);
}

.asl-callout--warning {
    background: rgba(217,119,6,.06);
    border-color: var(--color-warning);
}

.asl-callout__title {
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: var(--space-2);
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-center   { text-align: center; }
.text-left     { text-align: left; }
.text-right    { text-align: right; }
.font-bold     { font-weight: 700; }
.text-primary  { color: var(--color-primary); }
.text-muted    { color: var(--color-text-muted); }
.text-sm       { font-size: var(--text-sm); }
.text-lg       { font-size: var(--text-lg); }
.mt-auto       { margin-top: auto; }
.d-none        { display: none; }
.d-flex        { display: flex; }
.align-center  { align-items: center; }
.gap-2         { gap: var(--space-2); }
.gap-4         { gap: var(--space-4); }

/* ============================================================
   MEDIA QUERIES — RESPONSIVE ADJUSTMENTS
   ============================================================ */
@media (max-width: 767px) {
    .asl-section { padding-block: var(--space-12); }
    .asl-hero    { padding-block: var(--space-16); }
    .asl-hero__ctas { flex-direction: column; }
    .asl-btn--lg { width: 100%; justify-content: center; }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
    .asl-hero,
    .asl-footer,
    .asl-ad-slot {
        display: none;
    }
}