/**
 * Inverse Design Framework Page Layout
 * 
 * Enterprise-level styling for the Inverse Design Framework open-source page.
 * Uses .idf- prefix for all classes (Inverse Design Framework).
 * Engineering/CAD aesthetic with silver/blue accents.
 */

/* ============================================================================
   CSS VARIABLES
   ============================================================================ */

.idf-page {
    --idf-bg-primary: #0a0a0f;
    --idf-bg-secondary: #12121a;
    --idf-bg-card: rgba(20, 20, 30, 0.8);
    --idf-bg-glass: rgba(30, 30, 45, 0.6);

    --idf-accent-primary: #64b5f6;
    --idf-accent-secondary: #90caf9;
    --idf-accent-silver: #b0bec5;
    --idf-accent-gold: #ffd54f;
    --idf-accent-green: #81c784;
    --idf-accent-purple: #b39ddb;

    --idf-text-primary: #ffffff;
    --idf-text-secondary: rgba(255, 255, 255, 0.7);
    --idf-text-muted: rgba(255, 255, 255, 0.5);

    --idf-border-color: rgba(100, 181, 246, 0.2);
    --idf-border-glow: rgba(100, 181, 246, 0.4);

    --idf-gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #0d1b2a 100%);
    --idf-gradient-card: linear-gradient(145deg, rgba(30, 30, 45, 0.8), rgba(20, 20, 30, 0.9));

    --idf-shadow-glow: 0 0 40px rgba(100, 181, 246, 0.15);
    --idf-shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);

    --idf-spacing-xs: 0.5rem;
    --idf-spacing-sm: 1rem;
    --idf-spacing-md: 2rem;
    --idf-spacing-lg: 4rem;
    --idf-spacing-xl: 6rem;

    --idf-radius-sm: 8px;
    --idf-radius-md: 12px;
    --idf-radius-lg: 16px;
    --idf-radius-xl: 24px;

    --idf-transition-fast: 0.2s ease;
    --idf-transition-normal: 0.3s ease;
    --idf-transition-slow: 0.5s ease;
}

/* ============================================================================
   BASE STYLES
   ============================================================================ */

.idf-page {
    background: var(--idf-bg-primary);
    color: var(--idf-text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.idf-section-spacer {
    height: var(--idf-spacing-lg);
}

.idf-animate-slide-up {
    animation: idfSlideUp 0.8s ease-out forwards;
}

@keyframes idfSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.idf-section--visible {
    animation: idfFadeIn 0.6s ease-out forwards;
}

@keyframes idfFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================================
   BREADCRUMBS
   ============================================================================ */

.idf-page .breadcrumbs {
    padding: var(--idf-spacing-sm) var(--idf-spacing-md);
    background: var(--idf-bg-secondary);
    border-bottom: 1px solid var(--idf-border-color);
}

.idf-page .breadcrumbs ol {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    max-width: 1200px;
    margin: 0 auto;
    font-size: 0.875rem;
}

.idf-page .breadcrumbs li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--idf-text-muted);
}

.idf-page .breadcrumbs li:not(:last-child)::after {
    content: '/';
    color: var(--idf-text-muted);
    margin-left: 0.25rem;
}

.idf-page .breadcrumbs a {
    color: var(--idf-text-secondary);
    text-decoration: none;
    transition: color var(--idf-transition-fast);
}

.idf-page .breadcrumbs a:hover {
    color: var(--idf-accent-primary);
}

.idf-page .breadcrumbs li[aria-current="page"] {
    color: var(--idf-accent-primary);
    font-weight: 500;
}

/* Section Titles */
.idf-section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--idf-spacing-sm);
    background: linear-gradient(135deg, var(--idf-text-primary) 0%, var(--idf-accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.idf-section-subtitle {
    font-size: 1.125rem;
    color: var(--idf-text-secondary);
    max-width: 800px;
    line-height: 1.7;
    margin-bottom: var(--idf-spacing-md);
}

/* Highlight Badges */
.idf-highlight {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: var(--idf-radius-sm);
    margin-bottom: var(--idf-spacing-sm);
}

.idf-highlight--blue {
    background: rgba(100, 181, 246, 0.15);
    color: var(--idf-accent-primary);
    border: 1px solid rgba(100, 181, 246, 0.3);
}

.idf-highlight--green {
    background: rgba(129, 199, 132, 0.15);
    color: var(--idf-accent-green);
    border: 1px solid rgba(129, 199, 132, 0.3);
}

.idf-highlight--purple {
    background: rgba(179, 157, 219, 0.15);
    color: var(--idf-accent-purple);
    border: 1px solid rgba(179, 157, 219, 0.3);
}

.idf-highlight--gold {
    background: rgba(255, 213, 79, 0.15);
    color: var(--idf-accent-gold);
    border: 1px solid rgba(255, 213, 79, 0.3);
}

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

.idf-hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--idf-spacing-xl) var(--idf-spacing-md);
    overflow: hidden;
}

.idf-hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: var(--idf-gradient-hero);
}

.idf-hero__cad-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(100, 181, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(100, 181, 246, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: idfGridPulse 8s ease-in-out infinite;
}

@keyframes idfGridPulse {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

.idf-hero__grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(90deg, transparent 49.5%, rgba(100, 181, 246, 0.05) 50%, transparent 50.5%),
        linear-gradient(transparent 49.5%, rgba(100, 181, 246, 0.05) 50%, transparent 50.5%);
    background-size: 200px 200px;
}

.idf-hero__glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: idfOrbFloat 12s ease-in-out infinite;
}

.idf-hero__glow-orb--1 {
    width: 400px;
    height: 400px;
    background: var(--idf-accent-primary);
    top: -100px;
    right: -100px;
}

.idf-hero__glow-orb--2 {
    width: 300px;
    height: 300px;
    background: var(--idf-accent-silver);
    bottom: -50px;
    left: 10%;
    animation-delay: -6s;
}

@keyframes idfOrbFloat {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -20px) scale(1.05);
    }

    66% {
        transform: translate(-20px, 30px) scale(0.95);
    }
}

.idf-hero__content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    text-align: center;
}

.idf-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: rgba(100, 181, 246, 0.1);
    color: var(--idf-accent-primary);
    border: 1px solid var(--idf-border-color);
    border-radius: 999px;
    margin-bottom: var(--idf-spacing-md);
    animation: idfPulse 3s ease-in-out infinite;
}

@keyframes idfPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(100, 181, 246, 0.4);
    }

    50% {
        box-shadow: 0 0 0 8px rgba(100, 181, 246, 0);
    }
}

.idf-hero__title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--idf-spacing-md);
    background: linear-gradient(135deg, #ffffff 0%, var(--idf-accent-secondary) 50%, var(--idf-accent-silver) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.idf-hero__subtitle {
    font-size: 1.25rem;
    color: var(--idf-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--idf-spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.idf-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--idf-spacing-sm);
    justify-content: center;
}

.idf-hero__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--idf-radius-md);
    transition: all var(--idf-transition-normal);
}

.idf-hero__btn--primary {
    background: linear-gradient(135deg, var(--idf-accent-primary), #42a5f5);
    color: #000;
    box-shadow: 0 4px 20px rgba(100, 181, 246, 0.4);
}

.idf-hero__btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(100, 181, 246, 0.5);
}

.idf-hero__btn--secondary {
    background: transparent;
    color: var(--idf-text-primary);
    border: 2px solid var(--idf-border-color);
}

.idf-hero__btn--secondary:hover {
    background: rgba(100, 181, 246, 0.1);
    border-color: var(--idf-accent-primary);
}

/* ============================================================================
   GEOMETRY VISUALIZATION
   ============================================================================ */

.idf-geometry-viz {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 300px;
    height: 300px;
    z-index: 1;
    pointer-events: none;
}

@media (max-width: 1024px) {
    .idf-geometry-viz {
        display: none;
    }
}

.idf-geometry-viz__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(100, 181, 246, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(100, 181, 246, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    border-radius: var(--idf-radius-lg);
    opacity: 0.5;
}

.idf-geometry-viz__shape {
    position: absolute;
    border: 2px solid var(--idf-accent-primary);
    opacity: 0.6;
    animation: idfShapeMorph 8s ease-in-out infinite;
}

.idf-geometry-viz__shape--1 {
    width: 100px;
    height: 100px;
    top: 30%;
    left: 20%;
    border-radius: 10%;
    animation-delay: 0s;
}

.idf-geometry-viz__shape--2 {
    width: 80px;
    height: 80px;
    top: 50%;
    right: 15%;
    border-radius: 50%;
    animation-delay: -2.5s;
}

.idf-geometry-viz__shape--3 {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 30%;
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
    animation-delay: -5s;
}

@keyframes idfShapeMorph {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
        border-color: var(--idf-accent-primary);
    }

    25% {
        transform: translate(10px, -15px) rotate(90deg) scale(1.1);
        border-color: var(--idf-accent-silver);
    }

    50% {
        transform: translate(-5px, 10px) rotate(180deg) scale(0.9);
        border-color: var(--idf-accent-secondary);
    }

    75% {
        transform: translate(15px, 5px) rotate(270deg) scale(1.05);
        border-color: var(--idf-accent-primary);
    }
}

.idf-geometry-viz__morph {
    position: absolute;
    width: 120px;
    height: 120px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, rgba(100, 181, 246, 0.2), rgba(176, 190, 197, 0.1));
    border: 2px solid var(--idf-accent-primary);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: idfMorphBlob 10s ease-in-out infinite;
}

@keyframes idfMorphBlob {

    0%,
    100% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }

    25% {
        border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
    }

    50% {
        border-radius: 50% 50% 20% 80% / 25% 80% 20% 75%;
    }

    75% {
        border-radius: 20% 80% 80% 20% / 80% 20% 20% 80%;
    }
}

.idf-geometry-viz__target {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--idf-accent-gold);
    animation: idfTargetPulse 2s ease-in-out infinite;
}

@keyframes idfTargetPulse {

    0%,
    100% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

/* ============================================================================
   WHAT IS IT SECTION
   ============================================================================ */

.idf-what-section {
    padding: var(--idf-spacing-xl) var(--idf-spacing-md);
    background: var(--idf-bg-secondary);
}

.idf-what-section__inner {
    max-width: 1200px;
    margin: 0 auto;
}

/* Process Comparison */
.idf-process-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--idf-spacing-md);
    margin-bottom: var(--idf-spacing-lg);
}

.idf-process-comparison__traditional,
.idf-process-comparison__inverse {
    padding: var(--idf-spacing-md);
    border-radius: var(--idf-radius-lg);
    background: var(--idf-gradient-card);
    border: 1px solid var(--idf-border-color);
}

.idf-process-comparison__traditional {
    border-color: rgba(255, 255, 255, 0.1);
}

.idf-process-comparison__inverse {
    border-color: rgba(100, 181, 246, 0.3);
    box-shadow: var(--idf-shadow-glow);
}

.idf-process-comparison h3 {
    font-size: 1.25rem;
    margin-bottom: var(--idf-spacing-sm);
    color: var(--idf-text-primary);
}

.idf-process-comparison__inverse h3 {
    color: var(--idf-accent-primary);
}

.idf-process-flow {
    display: flex;
    align-items: center;
    gap: var(--idf-spacing-xs);
    flex-wrap: wrap;
    margin-bottom: var(--idf-spacing-sm);
}

.idf-process-flow span:not(:last-child):not(svg) {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--idf-radius-sm);
    font-size: 0.875rem;
}

.idf-process-flow--inverse span:not(:last-child):not(svg) {
    background: rgba(100, 181, 246, 0.1);
    color: var(--idf-accent-secondary);
}

.idf-process-flow svg {
    color: var(--idf-text-muted);
    flex-shrink: 0;
}

.idf-process-comparison p {
    color: var(--idf-text-secondary);
    font-size: 0.875rem;
}

/* What Grid */
.idf-what-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--idf-spacing-md);
}

@media (max-width: 768px) {
    .idf-what-grid {
        grid-template-columns: 1fr;
    }
}

/* Architecture Panel */
.idf-architecture-panel {
    padding: var(--idf-spacing-md);
    background: var(--idf-gradient-card);
    border: 1px solid var(--idf-border-color);
    border-radius: var(--idf-radius-lg);
}

.idf-architecture-panel__title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    margin-bottom: var(--idf-spacing-md);
    color: var(--idf-accent-primary);
}

.idf-architecture-list {
    display: flex;
    flex-direction: column;
    gap: var(--idf-spacing-sm);
}

.idf-architecture-item {
    padding: var(--idf-spacing-sm);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--idf-radius-sm);
    border-left: 3px solid var(--idf-accent-primary);
}

.idf-architecture-item__title {
    font-weight: 600;
    color: var(--idf-text-primary);
    display: block;
    margin-bottom: 0.25rem;
}

.idf-architecture-item__desc {
    font-size: 0.875rem;
    color: var(--idf-text-secondary);
    margin: 0;
}

/* Features Panels */
.idf-features-panels {
    display: flex;
    flex-direction: column;
    gap: var(--idf-spacing-sm);
}

.idf-feature-panel {
    padding: var(--idf-spacing-md);
    background: var(--idf-gradient-card);
    border: 1px solid var(--idf-border-color);
    border-radius: var(--idf-radius-lg);
}

.idf-feature-panel--included {
    border-color: rgba(129, 199, 132, 0.3);
}

.idf-feature-panel--enterprise {
    border-color: rgba(255, 213, 79, 0.3);
}

.idf-feature-panel__title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    margin-bottom: var(--idf-spacing-sm);
}

.idf-feature-panel--included .idf-feature-panel__title {
    color: var(--idf-accent-green);
}

.idf-feature-panel--enterprise .idf-feature-panel__title {
    color: var(--idf-accent-gold);
}

.idf-feature-panel__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.idf-feature-panel__list li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--idf-text-secondary);
}

.idf-feature-panel__list svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.idf-feature-panel--included .idf-feature-panel__list svg {
    color: var(--idf-accent-green);
}

.idf-feature-panel--enterprise .idf-feature-panel__list svg {
    color: var(--idf-accent-gold);
}

.idf-feature-panel__link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--idf-spacing-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--idf-accent-gold);
    text-decoration: none;
    transition: all var(--idf-transition-fast);
}

.idf-feature-panel__link:hover {
    gap: 0.75rem;
}

/* ============================================================================
   PROCESS SECTION
   ============================================================================ */

.idf-process-section {
    padding: var(--idf-spacing-xl) var(--idf-spacing-md);
    background: var(--idf-bg-primary);
}

.idf-process-section__inner {
    max-width: 900px;
    margin: 0 auto;
}

.idf-process-steps {
    display: flex;
    flex-direction: column;
    gap: var(--idf-spacing-lg);
    margin-top: var(--idf-spacing-lg);
}

.idf-process-step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--idf-spacing-md);
    align-items: start;
}

.idf-process-step__number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--idf-accent-primary), #42a5f5);
    color: #000;
    border-radius: 50%;
    flex-shrink: 0;
}

.idf-process-step__content {
    flex: 1;
}

.idf-process-step__title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--idf-text-primary);
}

.idf-process-step__desc {
    color: var(--idf-text-secondary);
    margin-bottom: var(--idf-spacing-sm);
}

/* ============================================================================
   CODE BLOCK
   ============================================================================ */

.idf-code-block {
    background: #0d0d12;
    border: 1px solid var(--idf-border-color);
    border-radius: var(--idf-radius-md);
    overflow: hidden;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.idf-code-block__header {
    display: flex;
    align-items: center;
    gap: var(--idf-spacing-sm);
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--idf-border-color);
}

.idf-code-block__dots {
    display: flex;
    gap: 6px;
}

.idf-code-block__dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.idf-code-block__dots span:nth-child(1) {
    background: #ff5f56;
}

.idf-code-block__dots span:nth-child(2) {
    background: #ffbd2e;
}

.idf-code-block__dots span:nth-child(3) {
    background: #27c93f;
}

.idf-code-block__lang {
    color: var(--idf-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.idf-code-block__copy {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--idf-text-secondary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--idf-border-color);
    border-radius: var(--idf-radius-sm);
    cursor: pointer;
    transition: all var(--idf-transition-fast);
}

.idf-code-block__copy:hover {
    background: rgba(100, 181, 246, 0.1);
    color: var(--idf-accent-primary);
    border-color: var(--idf-accent-primary);
}

.idf-code-block__pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
}

.idf-code-block__pre code {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--idf-text-secondary);
}

/* ============================================================================
   APPLICATIONS SECTION
   ============================================================================ */

.idf-applications-section {
    padding: var(--idf-spacing-xl) var(--idf-spacing-md);
    background: var(--idf-bg-secondary);
}

.idf-applications-section__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.idf-applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--idf-spacing-md);
    margin-top: var(--idf-spacing-lg);
}

.idf-application-card {
    padding: var(--idf-spacing-md);
    background: var(--idf-gradient-card);
    border: 1px solid var(--idf-border-color);
    border-radius: var(--idf-radius-lg);
    transition: all var(--idf-transition-normal);
}

.idf-application-card:hover {
    transform: translateY(-4px);
    border-color: var(--idf-border-glow);
    box-shadow: var(--idf-shadow-glow);
}

.idf-application-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(100, 181, 246, 0.1);
    border-radius: var(--idf-radius-md);
    margin-bottom: var(--idf-spacing-sm);
    color: var(--idf-accent-primary);
}

.idf-application-card__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--idf-text-primary);
}

.idf-application-card__desc {
    font-size: 0.875rem;
    color: var(--idf-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--idf-spacing-sm);
}

.idf-application-card__example {
    font-size: 0.8rem;
    color: var(--idf-accent-silver);
    padding-top: var(--idf-spacing-xs);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: block;
}

.idf-application-card__example strong {
    color: var(--idf-accent-primary);
}

/* ============================================================================
   COMPARISON SECTION
   ============================================================================ */

.idf-compare-section {
    padding: var(--idf-spacing-xl) var(--idf-spacing-md);
    background: var(--idf-bg-primary);
}

.idf-compare-section__inner {
    max-width: 900px;
    margin: 0 auto;
}

.idf-compare-table-wrapper {
    overflow-x: auto;
    margin-top: var(--idf-spacing-lg);
    border-radius: var(--idf-radius-lg);
    border: 1px solid var(--idf-border-color);
}

.idf-compare-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--idf-bg-card);
}

.idf-compare-table th,
.idf-compare-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.idf-compare-table th {
    background: rgba(255, 255, 255, 0.03);
    font-weight: 600;
    color: var(--idf-text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.idf-compare-table th:nth-child(2) {
    color: var(--idf-accent-primary);
}

.idf-compare-table th:nth-child(3) {
    color: var(--idf-accent-gold);
}

.idf-compare-table td {
    color: var(--idf-text-secondary);
    font-size: 0.9rem;
}

.idf-compare-table td:nth-child(2),
.idf-compare-table td:nth-child(3) {
    text-align: center;
}

.idf-compare-table tr:last-child td {
    border-bottom: none;
}

.idf-compare-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.idf-compare-cta {
    display: flex;
    justify-content: center;
    margin-top: var(--idf-spacing-lg);
}

.idf-compare-cta__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: #000;
    background: linear-gradient(135deg, var(--idf-accent-gold), #ffca28);
    border-radius: var(--idf-radius-md);
    text-decoration: none;
    transition: all var(--idf-transition-normal);
    box-shadow: 0 4px 20px rgba(255, 213, 79, 0.3);
}

.idf-compare-cta__btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 213, 79, 0.4);
}

/* ============================================================================
   FAQ SECTION
   ============================================================================ */

.idf-faq-section {
    padding: var(--idf-spacing-xl) var(--idf-spacing-md);
    background: var(--idf-bg-secondary);
}

.idf-faq-section__inner {
    max-width: 800px;
    margin: 0 auto;
}

.idf-faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--idf-spacing-sm);
    margin-top: var(--idf-spacing-lg);
}

.idf-faq-item {
    background: var(--idf-gradient-card);
    border: 1px solid var(--idf-border-color);
    border-radius: var(--idf-radius-md);
    overflow: hidden;
    transition: all var(--idf-transition-normal);
}

.idf-faq-item:hover {
    border-color: var(--idf-border-glow);
}

.idf-faq-item--open {
    border-color: var(--idf-accent-primary);
}

.idf-faq-item__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--idf-spacing-sm);
    padding: 1.25rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--idf-text-primary);
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: all var(--idf-transition-fast);
}

.idf-faq-item__question:hover {
    background: rgba(255, 255, 255, 0.02);
}

.idf-faq-item__icon {
    flex-shrink: 0;
    color: var(--idf-accent-primary);
    transition: transform var(--idf-transition-normal);
}

.idf-faq-item__icon.rotated {
    transform: rotate(180deg);
}

.idf-faq-item__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--idf-transition-normal);
}

.idf-faq-item--open .idf-faq-item__answer {
    max-height: 300px;
}

.idf-faq-item__answer p {
    padding: 0 1.25rem 1.25rem;
    color: var(--idf-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ============================================================================
   CTA SECTION
   ============================================================================ */

.idf-cta-section {
    padding: var(--idf-spacing-xl) var(--idf-spacing-md);
    background: linear-gradient(135deg, #0d1b2a 0%, var(--idf-bg-primary) 100%);
    text-align: center;
}

.idf-cta-section__inner {
    max-width: 700px;
    margin: 0 auto;
}

.idf-cta-section__title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--idf-spacing-sm);
    background: linear-gradient(135deg, #ffffff 0%, var(--idf-accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.idf-cta-section__description {
    font-size: 1.125rem;
    color: var(--idf-text-secondary);
    margin-bottom: var(--idf-spacing-lg);
    line-height: 1.7;
}

.idf-cta-section__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--idf-spacing-sm);
    justify-content: center;
}

.idf-cta-section__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--idf-radius-md);
    transition: all var(--idf-transition-normal);
}

.idf-cta-section__btn--primary {
    background: linear-gradient(135deg, var(--idf-accent-primary), #42a5f5);
    color: #000;
    box-shadow: 0 4px 20px rgba(100, 181, 246, 0.4);
}

.idf-cta-section__btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(100, 181, 246, 0.5);
}

.idf-cta-section__btn--secondary {
    background: transparent;
    color: var(--idf-text-primary);
    border: 2px solid var(--idf-border-color);
}

.idf-cta-section__btn--secondary:hover {
    background: rgba(100, 181, 246, 0.1);
    border-color: var(--idf-accent-primary);
}

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

@media (max-width: 768px) {
    .idf-hero {
        min-height: 80vh;
        padding: var(--idf-spacing-lg) var(--idf-spacing-sm);
    }

    .idf-hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .idf-hero__btn {
        justify-content: center;
    }

    .idf-process-step {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .idf-process-step__number {
        margin: 0 auto var(--idf-spacing-sm);
    }

    .idf-compare-table th,
    .idf-compare-table td {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }

    .idf-section-spacer {
        height: var(--idf-spacing-md);
    }

    .idf-cta-section__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .idf-cta-section__btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .idf-process-flow {
        flex-direction: column;
    }

    .idf-process-flow svg {
        transform: rotate(90deg);
    }
}