/* [Changelog: 1.1.0] Landing page styles */

/* ============================================
   LANDING PAGE LAYOUT
   ============================================ */

.landing-body {
    overflow-x: hidden;
}

.landing-section {
    padding: 80px 24px;
}

.landing-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: var(--text-4xl);
    color: var(--color-auburn-blue);
    margin-bottom: 12px;
}

.section-header p {
    font-size: var(--text-lg);
    color: var(--color-light-text);
    max-width: 640px;
    margin: 0 auto;
}

/* ============================================
   STICKY NAV
   ============================================ */

.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    transition: background var(--transition-normal), box-shadow var(--transition-normal), padding var(--transition-normal);
}

.landing-nav.scrolled {
    background: var(--color-auburn-blue);
    box-shadow: var(--shadow-lg);
    padding: 10px 32px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo img {
    height: 40px;
}

.nav-logo span {
    font-family: var(--font-display);
    color: var(--color-white);
    font-size: var(--text-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-white);
}

.nav-cta {
    background: var(--color-auburn-orange) !important;
    color: var(--color-white) !important;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 600 !important;
    transition: transform var(--transition-fast), background var(--transition-fast) !important;
}

.nav-cta:hover {
    background: #d45700 !important;
    transform: translateY(-1px);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    background: var(--color-auburn-blue);
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    color: var(--color-sky-blue);
    font-size: var(--text-sm);
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.hero-content h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-content h1 .highlight {
    color: var(--color-auburn-orange);
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto 32px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: var(--color-auburn-orange);
    color: var(--color-white);
    font-size: var(--text-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.hero-btn-primary:hover {
    background: #d45700;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(232, 97, 0, 0.3);
    color: var(--color-white);
}

.hero-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: transparent;
    color: var(--color-white);
    font-size: var(--text-base);
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.hero-btn-secondary:hover {
    border-color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 56px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat {
    text-align: center;
}

.hero-stat-value {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    color: var(--color-auburn-orange);
}

.hero-stat-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
}

/* ============================================
   FEATURES GRID
   ============================================ */

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--color-white);
    border: 1px solid #eee;
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-auburn-orange);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i,
.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-white);
}

.feature-card h3 {
    font-size: var(--text-xl);
    margin-bottom: 8px;
    text-transform: none;
}

.feature-card p {
    color: var(--color-light-text);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   INTERACTIVE DEMOS
   ============================================ */

.demos-section {
    background: var(--color-smoke-white);
}

.demo-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.demo-tab {
    padding: 10px 24px;
    border: 2px solid #ddd;
    border-radius: var(--radius-full);
    background: var(--color-white);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-dark-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.demo-tab:hover {
    border-color: var(--color-auburn-blue);
    color: var(--color-auburn-blue);
}

.demo-tab.active {
    background: var(--color-auburn-blue);
    border-color: var(--color-auburn-blue);
    color: var(--color-white);
}

.demo-stage {
    max-width: 740px;
    margin: 0 auto;
}

.demo-frame {
    background: var(--color-white);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 3px solid #e0e0e0;
}

.demo-frame-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 16px;
    background: #f5f5f5;
    border-bottom: 1px solid #e0e0e0;
}

.demo-frame-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
}

.demo-frame-title {
    flex: 1;
    text-align: center;
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-light-text);
}

.demo-content {
    padding: 32px;
    min-height: 400px;
    display: none;
}

.demo-content.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

.demo-question {
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-darkest-text);
    margin-bottom: 24px;
    text-align: center;
}

/* Demo: Multiple Choice */
.demo-mc-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto;
}

.demo-mc-option {
    padding: 16px 20px;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-lg);
    background: var(--color-white);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--text-base);
}

.demo-mc-option:hover {
    border-color: var(--color-auburn-blue);
    background: rgba(11, 35, 65, 0.03);
}

.demo-mc-option.correct {
    border-color: var(--color-success);
    background: var(--color-success-light);
    animation: popIn 0.3s ease;
}

.demo-mc-option.incorrect {
    border-color: var(--color-error);
    background: var(--color-error-light);
    animation: shake 0.4s ease;
}

.demo-mc-letter {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-smoke-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
    color: var(--color-auburn-blue);
    flex-shrink: 0;
}

.demo-mc-option.correct .demo-mc-letter {
    background: var(--color-success);
    color: white;
}

.demo-mc-option.incorrect .demo-mc-letter {
    background: var(--color-error);
    color: white;
}

.demo-feedback {
    text-align: center;
    margin-top: 20px;
    font-weight: 500;
    font-size: var(--text-base);
    min-height: 28px;
}

.demo-reset {
    display: block;
    margin: 16px auto 0;
    padding: 8px 20px;
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    background: var(--color-white);
    font-size: var(--text-sm);
    color: var(--color-light-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.demo-reset:hover {
    border-color: var(--color-auburn-blue);
    color: var(--color-auburn-blue);
}

/* Demo: Matching Bins */
.demo-bins-area {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.demo-bin {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    border: 2px dashed #d0d0d0;
    border-radius: var(--radius-lg);
    padding: 16px;
    min-height: 180px;
    transition: all var(--transition-fast);
}

.demo-bin.drag-over {
    border-color: var(--color-auburn-orange);
    background: var(--color-warning-light);
}

.demo-bin-title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    color: var(--color-auburn-blue);
    text-align: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-smoke-white);
    text-transform: uppercase;
}

.demo-bin-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 100px;
}

.demo-bin-items .demo-drag-item {
    font-size: var(--text-sm);
}

.demo-drag-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.demo-drag-item {
    padding: 10px 18px;
    background: var(--color-auburn-blue);
    color: var(--color-white);
    border-radius: var(--radius-full);
    cursor: grab;
    font-size: var(--text-sm);
    font-weight: 500;
    user-select: none;
    transition: all var(--transition-fast);
    touch-action: none;
}

.demo-drag-item:hover {
    background: var(--color-offset-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.demo-drag-item.dragging {
    opacity: 0.5;
}

.demo-drag-item.placed {
    background: var(--color-success);
}

/* Demo: Image Label */
.demo-label-container {
    position: relative;
    max-width: 500px;
    margin: 0 auto 24px;
}

.demo-label-image {
    width: 100%;
    border-radius: var(--radius-lg);
}

.demo-label-zone {
    position: absolute;
    width: 120px;
    height: 36px;
    border: 2px dashed rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.demo-label-zone.drag-over {
    border-color: var(--color-auburn-orange);
    background: rgba(232, 97, 0, 0.3);
}

.demo-label-zone.filled {
    border-style: solid;
    border-color: var(--color-success);
    background: rgba(135, 173, 68, 0.9);
}

.demo-label-zone .demo-drag-item {
    padding: 4px 12px;
    font-size: var(--text-xs);
    border-radius: var(--radius-sm);
}

.demo-label-bank {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.demo-standard-callout {
    margin-top: 20px;
    padding: 16px 20px;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
    border-left: 4px solid var(--color-offset-blue);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    animation: fadeIn var(--transition-normal);
}

.demo-standard-callout .callout-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--color-offset-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-standard-callout .callout-icon svg {
    color: var(--color-white);
}

.demo-standard-callout .callout-text {
    font-size: var(--text-sm);
    color: var(--color-dark-text);
    line-height: 1.6;
}

.demo-standard-callout code {
    background: rgba(11, 35, 65, 0.08);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-auburn-blue);
}

/* ============================================
   STANDARDS SECTION
   ============================================ */

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

.standards-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.standards-visual {
    background: var(--color-smoke-white);
    border-radius: var(--radius-xl);
    padding: 32px;
}

.standard-tree {
    font-size: var(--text-sm);
}

.standard-tree-level {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.standard-tree-level.level-0 {
    background: var(--color-auburn-blue);
    color: var(--color-white);
    font-weight: 600;
}

.standard-tree-level.level-1 {
    background: var(--color-offset-blue);
    color: var(--color-white);
    margin-left: 24px;
}

.standard-tree-level.level-2 {
    background: var(--color-sky-blue);
    color: var(--color-auburn-blue);
    margin-left: 48px;
    font-size: var(--text-xs);
}

.standards-text h3 {
    font-size: var(--text-2xl);
    margin-bottom: 16px;
    text-transform: none;
}

.standards-text p {
    color: var(--color-dark-text);
    line-height: 1.8;
    margin-bottom: 16px;
}

.standards-checklist {
    list-style: none;
    padding: 0;
}

.standards-checklist li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-size: var(--text-sm);
    color: var(--color-dark-text);
}

.standards-checklist li i {
    color: var(--color-success);
    flex-shrink: 0;
    margin-top: 2px;
}

/* ============================================
   REPORTING SECTION
   ============================================ */

.reporting-section {
    background: var(--color-smoke-white);
}

.report-mockup {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.report-mockup-header {
    background: var(--color-auburn-blue);
    color: var(--color-white);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.report-mockup-body {
    padding: 24px;
}

.report-stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.report-stat-card {
    text-align: center;
    padding: 16px;
    background: var(--color-smoke-white);
    border-radius: var(--radius-md);
}

.report-stat-card .value {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    color: var(--color-auburn-blue);
}

.report-stat-card .label {
    font-size: var(--text-xs);
    color: var(--color-light-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.report-bar-group {
    margin-bottom: 16px;
}

.report-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-sm);
    margin-bottom: 6px;
}

.report-bar-track {
    height: 12px;
    background: var(--color-smoke-white);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.report-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 1.5s ease-out;
}

/* ============================================
   STORY SECTION
   ============================================ */

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

.story-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.story-content .quote-icon {
    font-size: 48px;
    color: var(--color-auburn-orange);
    margin-bottom: 16px;
}

.story-content p {
    font-size: var(--text-lg);
    line-height: 1.9;
    color: var(--color-dark-text);
}

.story-content p.lead {
    font-size: var(--text-xl);
    font-weight: 500;
    color: var(--color-auburn-blue);
    margin-bottom: 24px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-section {
    background: linear-gradient(135deg, var(--color-auburn-blue) 0%, #1a3050 100%);
    text-align: center;
    padding: 80px 24px;
}

.contact-section h2 {
    color: var(--color-white);
    font-size: var(--text-4xl);
    margin-bottom: 16px;
}

.contact-section p {
    color: rgba(255, 255, 255, 0.75);
    font-size: var(--text-lg);
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 40px;
    background: var(--color-auburn-orange);
    color: var(--color-white);
    font-size: var(--text-lg);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.contact-btn:hover {
    background: #d45700;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232, 97, 0, 0.4);
    color: var(--color-white);
}

.contact-email {
    margin-top: 16px;
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-sm);
}

.contact-email a {
    color: var(--color-sky-blue);
}

/* ============================================
   FOOTER
   ============================================ */

.landing-footer {
    background: #0a1c30;
    color: rgba(255, 255, 255, 0.5);
    padding: 32px 24px;
    text-align: center;
    font-size: var(--text-sm);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-auburn-orange);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes popIn {
    0% { transform: scale(0.95); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .landing-section {
        padding: 56px 20px;
    }

    .landing-nav {
        padding: 12px 16px;
    }

    .nav-links a:not(.nav-cta) {
        display: none;
    }

    .hero-section {
        min-height: auto;
        padding: 100px 20px 60px;
    }

    .hero-content h1 {
        font-size: var(--text-3xl);
    }

    .hero-stats {
        gap: 24px;
    }

    .hero-stat-value {
        font-size: var(--text-2xl);
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .demo-mc-options {
        grid-template-columns: 1fr;
    }

    .demo-bins-area {
        flex-direction: column;
        align-items: center;
    }

    .demo-bin {
        max-width: 100%;
    }

    .standards-showcase {
        grid-template-columns: 1fr;
    }

    .report-stats-row {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: var(--text-3xl);
    }

    .contact-section h2 {
        font-size: var(--text-3xl);
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .demo-tabs {
        gap: 6px;
    }

    .demo-tab {
        padding: 8px 16px;
        font-size: var(--text-xs);
    }

    .demo-content {
        padding: 20px;
    }
}