/*
 * Purple Giraffe - Créer son app mobile avec Flutter et l'IA
 * Page-specific styles only - common styles are in common.css
 * REQUIRES: common.css to be loaded first
 * CSS prefix: pg-app-ia-
 */

/* ==========================================
   HEADER (dark background overrides)
   ========================================== */
.pg-app-ia-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

/* ==========================================
   HERO SECTION (Dark)
   ========================================== */
.pg-app-ia-hero {
    position: relative;
    background: linear-gradient(135deg, #0f0a1a 0%, #1a0f2e 50%, #0f1a2e 100%);
    padding: calc(var(--pg-spacing-xl) + 80px) 0 var(--pg-spacing-xl);
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

/* Ambient glow effects */
.pg-app-ia-hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
}

.pg-app-ia-hero-glow-1 {
    width: 600px;
    height: 600px;
    background: rgba(168, 85, 247, 0.15);
    top: -200px;
    left: -100px;
    animation: pg-app-ia-pulse 8s ease-in-out infinite;
}

.pg-app-ia-hero-glow-2 {
    width: 400px;
    height: 400px;
    background: rgba(6, 182, 212, 0.1);
    bottom: -100px;
    right: -50px;
    animation: pg-app-ia-pulse 10s ease-in-out infinite 2s;
}

.pg-app-ia-hero-glow-3 {
    width: 300px;
    height: 300px;
    background: rgba(168, 85, 247, 0.08);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pg-app-ia-pulse-center 12s ease-in-out infinite 4s;
}

@keyframes pg-app-ia-pulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

@keyframes pg-app-ia-pulse-center {
    0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

/* Grid pattern overlay */
.pg-app-ia-hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(168, 85, 247, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(168, 85, 247, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

/* Hero layout: 2-column */
.pg-app-ia-hero-layout {
    display: flex;
    align-items: center;
    gap: var(--pg-spacing-xl);
    position: relative;
    z-index: 1;
}

.pg-app-ia-hero-text {
    flex: 1;
    min-width: 0;
}

.pg-app-ia-hero-visual {
    flex: 0 0 480px;
}

/* Badge (Flutter × IA) */
.pg-app-ia-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(168, 85, 247, 0.15);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: 20px;
    padding: 6px 16px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #c084fc;
    margin-bottom: var(--pg-spacing-md);
}

.pg-app-ia-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #a855f7;
    animation: pg-app-ia-dot-pulse 2s ease-in-out infinite;
}

@keyframes pg-app-ia-dot-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(168, 85, 247, 0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(168, 85, 247, 0); }
}

/* Hero title */
.pg-app-ia-hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--pg-white);
    line-height: 1.1;
    margin-bottom: var(--pg-spacing-sm);
}

.pg-app-ia-gradient-text {
    background: linear-gradient(135deg, #a855f7, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pg-app-ia-hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: var(--pg-spacing-md);
}

/* Tag pills */
.pg-app-ia-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--pg-spacing-lg);
}

.pg-app-ia-tag {
    display: inline-block;
    padding: 5px 14px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
}

/* CTA button on dark bg */
.pg-app-ia-cta {
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    color: var(--pg-white);
    border: none;
    font-size: 1.1rem;
    padding: 16px 32px;
}

.pg-app-ia-cta:hover {
    background: linear-gradient(135deg, #9333ea, #6d28d9);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.35);
    color: var(--pg-white);
}

/* Hero image */
.pg-app-ia-hero-image {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* ==========================================
   INTRODUCTION SECTION
   ========================================== */
.pg-app-ia-intro {
    background-color: var(--pg-white);
}

.pg-app-ia-intro-content {
    max-width: 800px;
    margin: 0 auto;
}

.pg-app-ia-intro-text {
    font-size: 1.125rem;
    color: var(--pg-dark-gray);
    line-height: 1.8;
    margin-bottom: var(--pg-spacing-md);
}

/* ==========================================
   APP SHOWCASE SECTION
   ========================================== */
.pg-app-ia-showcase-layout {
    display: flex;
    align-items: center;
    gap: var(--pg-spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.pg-app-ia-showcase-image-wrapper {
    flex: 0 0 300px;
    text-align: center;
}

.pg-app-ia-showcase-image {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: var(--pg-border-radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.pg-app-ia-showcase-text {
    flex: 1;
    min-width: 0;
}

.pg-app-ia-showcase-description {
    font-size: 1.125rem;
    color: var(--pg-dark-gray);
    line-height: 1.8;
    margin-bottom: var(--pg-spacing-sm);
}

.pg-app-ia-showcase-list {
    list-style: none;
    padding: 0;
    margin: var(--pg-spacing-md) 0 0;
}

.pg-app-ia-showcase-list li {
    position: relative;
    padding: 6px 0 6px 24px;
    font-size: 1.05rem;
    color: var(--pg-dark-gray);
    line-height: 1.6;
}

.pg-app-ia-showcase-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--pg-purple);
    font-weight: 700;
}

/* ==========================================
   FREE PART SECTION
   ========================================== */
.pg-app-ia-free-part {
    background-color: var(--pg-white);
}

.pg-app-ia-free-part-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.pg-app-ia-free-badge-inline {
    display: inline-block;
    background: #22c55e;
    color: var(--pg-white);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--pg-spacing-md);
}

.pg-app-ia-free-part-details {
    text-align: left;
    max-width: 600px;
    margin: var(--pg-spacing-lg) auto;
}

.pg-app-ia-checklist {
    list-style: none;
    padding: 0;
    margin-bottom: var(--pg-spacing-md);
}

.pg-app-ia-checklist li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    font-size: 1.05rem;
    color: var(--pg-dark-gray);
    line-height: 1.6;
}

.pg-app-ia-checklist svg {
    color: #22c55e;
    flex-shrink: 0;
    margin-top: 3px;
}

.pg-app-ia-cta-free {
    background: #22c55e;
    border: none;
    color: var(--pg-white);
}

.pg-app-ia-cta-free:hover {
    background: #16a34a;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.3);
    color: var(--pg-white);
}

/* ==========================================
   PROGRAM SECTION (PAID)
   ========================================== */
.pg-app-ia-program-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--pg-spacing-md);
    margin-top: var(--pg-spacing-lg);
}

.pg-app-ia-program-card {
    background: var(--pg-white);
    border-radius: var(--pg-border-radius-lg);
    padding: var(--pg-spacing-lg);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--pg-border-color);
    transition: var(--pg-transition);
}

.pg-app-ia-program-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(156, 56, 108, 0.12);
}

.pg-app-ia-program-card-header {
    margin-bottom: var(--pg-spacing-sm);
}

.pg-app-ia-program-chapter {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--pg-purple);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pg-app-ia-program-card-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--pg-black);
    margin-bottom: var(--pg-spacing-sm);
}

.pg-app-ia-program-card-description {
    font-size: 0.95rem;
    color: var(--pg-dark-gray);
    line-height: 1.6;
}

/* ==========================================
   METHOD SECTION
   ========================================== */
.pg-app-ia-method {
    background-color: var(--pg-white);
}

.pg-app-ia-method-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--pg-spacing-md);
    margin-top: var(--pg-spacing-lg);
}

.pg-app-ia-method-card {
    text-align: center;
    padding: var(--pg-spacing-lg) var(--pg-spacing-md);
}

.pg-app-ia-method-icon {
    color: var(--pg-purple);
    margin-bottom: var(--pg-spacing-md);
}

.pg-app-ia-method-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--pg-black);
    margin-bottom: var(--pg-spacing-sm);
}

.pg-app-ia-method-description {
    font-size: 0.95rem;
    color: var(--pg-dark-gray);
    line-height: 1.6;
}

/* ==========================================
   INSTRUCTOR SECTION
   ========================================== */
.pg-app-ia-instructor {
    padding: var(--pg-spacing-xl) 0;
    background-color: var(--pg-light-gray);
}

/* ==========================================
   FEATURES SECTION
   ========================================== */
.pg-app-ia-features {
    padding: var(--pg-spacing-xl) 0;
    background-color: var(--pg-white);
}

.pg-app-ia-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--pg-spacing-lg);
    margin-top: var(--pg-spacing-lg);
}

.pg-app-ia-feature {
    background-color: var(--pg-white);
    padding: var(--pg-spacing-lg);
    border-radius: var(--pg-border-radius);
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--pg-transition);
}

.pg-app-ia-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(156, 56, 108, 0.15);
}

.pg-app-ia-feature-image {
    width: 100px;
    height: 100px;
    object-fit: contain;
    margin-bottom: var(--pg-spacing-md);
}

.pg-app-ia-feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--pg-black);
    margin-bottom: var(--pg-spacing-sm);
}

.pg-app-ia-feature-description {
    font-size: 1rem;
    color: var(--pg-dark-gray);
    line-height: 1.6;
}

/* ==========================================
   FAQ SECTION
   ========================================== */
.pg-app-ia-faq {
    background-color: var(--pg-white);
}

.pg-app-ia-faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.pg-app-ia-faq-item {
    background-color: var(--pg-white);
    border-radius: var(--pg-border-radius);
    margin-bottom: var(--pg-spacing-md);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: var(--pg-transition);
}

.pg-app-ia-faq-item-active {
    box-shadow: 0 4px 20px rgba(156, 56, 108, 0.15);
}

.pg-app-ia-faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--pg-spacing-md);
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--pg-black);
    transition: var(--pg-transition);
}

.pg-app-ia-faq-question:hover {
    background-color: var(--pg-light-gray);
}

.pg-app-ia-faq-question:focus {
    outline: 2px solid var(--pg-purple);
    outline-offset: -2px;
}

.pg-app-ia-faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--pg-purple);
}

.pg-app-ia-faq-question[aria-expanded="true"] .pg-app-ia-faq-icon {
    transform: rotate(180deg);
}

.pg-app-ia-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.pg-app-ia-faq-answer p {
    padding: 0 var(--pg-spacing-md) var(--pg-spacing-md);
    margin: 0;
    color: var(--pg-dark-gray);
    line-height: 1.7;
}

.pg-app-ia-faq-answer p + p {
    padding-top: var(--pg-spacing-sm);
}

/* ==========================================
   FINAL CTA SECTION (Dark)
   ========================================== */
.pg-app-ia-final-cta {
    position: relative;
    background: linear-gradient(135deg, #0f0a1a 0%, #1a0f2e 50%, #0f1a2e 100%);
    padding: var(--pg-spacing-xl) 0;
    overflow: hidden;
    text-align: center;
}

.pg-app-ia-final-cta-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: rgba(168, 85, 247, 0.12);
    filter: blur(120px);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.pg-app-ia-final-cta-content {
    position: relative;
    z-index: 1;
}

.pg-app-ia-final-cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--pg-white);
    margin-bottom: var(--pg-spacing-sm);
}

.pg-app-ia-final-cta-text {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--pg-spacing-lg);
}

/* ==========================================
   MADE IN FRANCE SECTION
   ========================================== */
.pg-app-ia-made-in-france {
    padding: var(--pg-spacing-xl) 0;
    background-color: var(--pg-light-gray);
    text-align: center;
}

/* ==========================================
   RESPONSIVE - TABLET (max-width: 1024px)
   ========================================== */
@media (max-width: 1024px) {
    .pg-app-ia-hero-visual {
        flex: 0 0 400px;
    }

    .pg-app-ia-hero-title {
        font-size: 2.6rem;
    }

    .pg-app-ia-program-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pg-app-ia-method-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================
   RESPONSIVE - TABLET (max-width: 768px)
   ========================================== */
@media (max-width: 768px) {
    .pg-app-ia-hero {
        min-height: auto;
        padding-top: calc(var(--pg-spacing-xl) + 60px);
    }

    .pg-app-ia-hero-layout {
        flex-direction: column;
        text-align: center;
    }

    .pg-app-ia-hero-visual {
        flex: none;
        width: 100%;
        max-width: 420px;
    }

    .pg-app-ia-hero-title {
        font-size: 2.2rem;
    }

    .pg-app-ia-hero-subtitle {
        font-size: 1.1rem;
    }

    .pg-app-ia-tags {
        justify-content: center;
    }

    .pg-app-ia-showcase-layout {
        flex-direction: column;
        text-align: center;
    }

    .pg-app-ia-showcase-image-wrapper {
        flex: none;
        width: 100%;
        max-width: 250px;
        margin: 0 auto;
    }

    .pg-app-ia-showcase-list {
        text-align: left;
    }

    .pg-app-ia-program-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    .pg-app-ia-method-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .pg-app-ia-final-cta-title {
        font-size: 2rem;
    }

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

/* ==========================================
   RESPONSIVE - MOBILE (max-width: 480px)
   ========================================== */
@media (max-width: 480px) {
    .pg-app-ia-hero-title {
        font-size: 1.75rem;
    }

    .pg-app-ia-hero-subtitle {
        font-size: 1rem;
    }

    .pg-app-ia-final-cta-title {
        font-size: 1.6rem;
    }

    .pg-app-ia-cta {
        width: 100%;
        text-align: center;
    }

    .pg-app-ia-faq-question {
        font-size: 1rem;
    }
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */
@media (prefers-reduced-motion: reduce) {
    .pg-app-ia-hero-glow,
    .pg-app-ia-badge-dot {
        animation: none;
    }

    .pg-app-ia-faq-item,
    .pg-app-ia-program-card {
        transition: none;
    }

    .pg-app-ia-cta:hover,
    .pg-app-ia-cta-free:hover {
        transform: none;
    }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--pg-purple);
    outline-offset: 2px;
}