/* ===================================
   CSS VARIABLES & RESET
   =================================== */
:root {
    /* Deep Space Background - Dynamic & Rich */
    --bg-primary: #050505;
    --bg-secondary: #0f0f0f;
    --bg-tertiary: #161616;

    /* Glassmorphism Surface */
    --glass-surface: rgba(20, 20, 20, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-highlight: rgba(255, 255, 255, 0.03);
    --glass-blur: blur(20px);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;

    /* Vibrant Neon Accents */
    --orange-primary: #FF5500;
    --orange-light: #FF9500;
    --orange-dark: #cc4400;
    --orange-glow: rgba(255, 85, 0, 0.5);
    --orange-super-glow: rgba(255, 85, 0, 0.8);

    /* Secondary Accents for Depth */
    --accent-blue: #2d00f7;
    --accent-purple: #7209b7;

    /* Status Colors */
    --success-color: #00ff88;
    --warning-color: #ffaa00;
    --gold-color: #ffd700;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);

    /* Modern Shadows */
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-neon: 0 0 20px var(--orange-glow), 0 0 40px rgba(255, 85, 0, 0.2);

    /* Global Components */
    --bg-card: rgba(255, 255, 255, 0.05);
    --border-color: var(--glass-border);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: radial-gradient(circle at 50% 0%, #1a1a1a 0%, var(--bg-primary) 60%);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 10% 20%, rgba(45, 0, 247, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(255, 85, 0, 0.03) 0%, transparent 40%);
    z-index: -1;
    pointer-events: none;
}

/* Skip to Content Link */
.skip-to-content {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--orange-primary);
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    font-weight: 600;
    z-index: 9999;
    border-radius: 0 0 var(--radius-sm) 0;
    transition: top 0.3s ease;
}

.skip-to-content:focus {
    top: 0;
    outline: 3px solid var(--orange-light);
    outline-offset: 2px;
}

/* ===================================
   CONTAINER & LAYOUT
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

/* ===================================
   HEADER
   =================================== */
.header {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.header-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
    animation: float 3s ease-in-out infinite;
}

.header-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #fff 0%, var(--orange-light) 50%, var(--orange-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
    filter: drop-shadow(0 0 20px rgba(255, 85, 0, 0.3));
    animation: titleGlow 3s ease-in-out infinite alternate;
}

.header-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--glass-surface);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.lang-btn:hover {
    color: var(--orange-light);
}

.lang-btn.active {
    color: var(--orange-primary);
}

.lang-divider {
    color: var(--glass-border);
    margin: 0 0.5rem;
}

/* ===================================
   MAIN CONTENT
   =================================== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ===================================
   PROGRESS BAR
   =================================== */
.progress-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-md);
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: var(--border-color);
    z-index: 0;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    position: relative;
    z-index: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #181818;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.progress-step.active .step-number {
    background: var(--orange-primary);
    border-color: var(--orange-primary);
    box-shadow: var(--shadow-glow);
    transform: scale(1.1);
}

.progress-step.completed .step-number {
    background: #181818;
    border-color: var(--orange-primary);
    color: #ffffff;
}

.step-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    transition: color var(--transition-normal);
}

.progress-step.active .step-label {
    color: var(--orange-primary);
}

/* ===================================
   WIZARD STEPS
   =================================== */
.wizard-section {
    background: var(--glass-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.5s ease;
    position: relative;
    overflow: hidden;
}

.wizard-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
}

.wizard-step {
    display: none;
    animation: slideIn 0.4s ease;
}

.wizard-step.active {
    display: block;
}

.step-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--text-primary);
}

/* ===================================
   OPTION CARDS
   =================================== */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.option-card {
    position: relative;
    cursor: pointer;
}

.option-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.card-content {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    backdrop-filter: blur(5px);
}

.option-card:hover .card-content {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--orange-glow);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 0 25px rgba(255, 85, 0, 0.25);
    /* box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 85, 0, 0.1);*/
}

.option-card input[type="radio"]:checked+.card-content {
    background: linear-gradient(145deg, rgba(255, 85, 0, 0.15), rgba(20, 20, 20, 0.8));
    border-color: var(--orange-primary);
    box-shadow: 0 0 0 2px var(--orange-primary), var(--shadow-neon);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    filter: grayscale(0.3);
    transition: filter var(--transition-normal);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 64px;
}

.card-icon img,
.card-icon svg {
    width: 64px;
    height: 64px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: all var(--transition-normal);
}

/* Icon specific colors */
.icon-indoor {
    color: #4CC9F0;
}

.icon-outdoor {
    color: #FFD93D;
}

.icon-heat {
    color: #FF6B6B;
}

.icon-visual {
    color: #F72585;
}

.icon-standard {
    color: #E0E0E0;
}

.icon-heavy {
    color: #41EAD4;
}

.icon-flexible {
    color: #FF9F1C;
}

.icon-rc {
    color: #4895EF;
}

.option-card input[type="radio"]:checked+.card-content .card-icon {
    filter: grayscale(0);
    animation: pulse 0.5s ease;
}

/* Generic glow fallback */
.option-card input[type="radio"]:checked+.card-content .card-icon img {
    filter: drop-shadow(0 0 10px var(--orange-glow));
}

/* Specific glows matching icon colors */
.option-card input[type="radio"]:checked+.card-content .card-icon .icon-indoor {
    filter: drop-shadow(0 0 15px rgba(76, 201, 240, 0.6));
}

.option-card input[type="radio"]:checked+.card-content .card-icon .icon-outdoor {
    filter: drop-shadow(0 0 15px rgba(255, 217, 61, 0.6));
}

.option-card input[type="radio"]:checked+.card-content .card-icon .icon-heat {
    filter: drop-shadow(0 0 15px rgba(255, 107, 107, 0.6));
}

.option-card input[type="radio"]:checked+.card-content .card-icon .icon-visual {
    filter: drop-shadow(0 0 15px rgba(247, 37, 133, 0.6));
}

.option-card input[type="radio"]:checked+.card-content .card-icon .icon-standard {
    filter: drop-shadow(0 0 15px rgba(224, 224, 224, 0.6));
}

.option-card input[type="radio"]:checked+.card-content .card-icon .icon-heavy {
    filter: drop-shadow(0 0 15px rgba(65, 234, 212, 0.6));
}

.option-card input[type="radio"]:checked+.card-content .card-icon .icon-flexible {
    filter: drop-shadow(0 0 15px rgba(255, 159, 28, 0.6));
}

.option-card input[type="radio"]:checked+.card-content .card-icon .icon-rc {
    filter: drop-shadow(0 0 15px rgba(72, 149, 239, 0.6));
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.card-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ===================================
   APP PROMOTION (MODAL & FOOTER)
   =================================== */

/* --- Footer Button --- */
.app-promo-footer {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 5;
}

.btn-app-download {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.03);
    padding: 12px 28px;
    border-radius: 50px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-app-download:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--orange-primary);
    box-shadow: 0 0 25px rgba(255, 85, 0, 0.25);
    color: var(--text-primary);
}

.app-icon {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: transform 0.4s ease;
}

/* --- Modal Overlay --- */
.app-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 5, 5, 0.85);
    backdrop-filter: blur(16px);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
}

.app-modal-overlay:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

/* --- Premium Modal Content --- */
.app-modal-content.premium-modal {
    background: linear-gradient(145deg, #121212, #000000);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    width: 95%;
    max-width: 500px;

    padding: 0;
    position: relative;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.7), 0 0 40px rgba(255, 85, 0, 0.15);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}

.app-modal-overlay:not(.hidden) .app-modal-content.premium-modal {
    transform: scale(1) translateY(0);
}

/* Modal Grid Layout - Simplified */
.modal-grid.centered-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

/* --- Text Column (Centered) --- */
.modal-text-col.centered-text {
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    z-index: 2;
    width: 100%;
}

.modal-badge-icon {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 24px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.modal-badge-icon img {
    width: 36px;
    height: 36px;
}

.app-modal-content h2 {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, #ddd 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
    line-height: 1.2;
}

.app-modal-content p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 25px;
    max-width: 80%;
}

/* Feature List (Centered) */
.modal-features.centered-features {
    list-style: none;
    display: flex;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    justify-content: center;

}

.modal-features li {
    background: rgba(255, 85, 0, 0.1);
    color: var(--orange-light);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    border: 1px solid rgba(255, 85, 0, 0.2);
}

.modal-features .check {
    font-size: 0.8rem;
}

/* CTA Button */
.btn-modal-download.premium-btn {
    width: auto;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(255, 85, 0, 0.4);
    color: white !important;
    text-decoration: none !important;
}

.btn-modal-download.premium-btn:visited,
.btn-modal-download.premium-btn:active,
.btn-modal-download.premium-btn:focus {
    color: white !important;
    text-decoration: none !important;
    outline: none;
}

.btn-modal-download.premium-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 85, 0, 0.6);
    background: linear-gradient(135deg, var(--orange-light), var(--orange-primary));
}

.btn-icon-small {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .app-modal-content.premium-modal {
        max-width: 90%;
        margin: 20px;
    }

    .modal-image-col {
        padding: 40px 20px 20px;
        min-height: 250px;
    }

    .modal-hero-img {
        max-width: 180px;
        transform: rotate(-5deg) translateY(10px);
    }

    .modal-text-col {
        padding: 25px;
        align-items: center;
        text-align: center;
    }

    .modal-features {
        justify-content: center;
    }

    .btn-modal-download.premium-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Close Button */
.close-modal-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s;
}

.close-modal-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ===================================
   BUTTONS
   =================================== */
.button-group {
    display: flex;
    gap: var(--spacing-md);
    justify-content: space-between;
}

.button-group.right-aligned {
    justify-content: flex-end;
}

.btn-next,
.btn-back,
.btn-restart {
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: inherit;
}

.btn-next {
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(255, 85, 0, 0.3);
    flex: 1;
    max-width: 300px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.btn-next::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.btn-next:hover:not(:disabled)::before {
    left: 100%;
}

.btn-next:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--orange-light), var(--orange-primary));
    box-shadow: 0 0 20px var(--orange-glow);
    transform: translateY(-2px);
}

.btn-next:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-back {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    padding: 0.875rem 1.5rem;
}

.btn-back:hover {
    border-color: var(--orange-primary);
    color: var(--orange-primary);
}

.btn-restart {
    background: transparent;
    color: var(--orange-primary);
    border: 2px solid var(--orange-primary);
    padding: 0.75rem 1.5rem;
}

.btn-restart:hover {
    background: var(--orange-primary);
    color: white;
}

/* ===================================
   RESULTS SECTION
   =================================== */
.results-section {
    margin-top: 3rem;
    animation: fadeIn 0.5s ease;
}

.results-section.hidden {
    display: none;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.results-title {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.results-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.result-category {
    margin-bottom: var(--spacing-md);
}

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.category-title.best-match {
    color: var(--gold-color);
}

.category-title.alternatives {
    color: var(--text-secondary);
}

.filament-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.filament-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    animation: scaleIn 0.4s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.filament-card.best-match {
    border-color: var(--gold-color);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2), var(--shadow-md);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), transparent);
}

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

.filament-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
}

.filament-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--orange-primary);
}

.best-badge {
    background: var(--gold-color);
    color: #000;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filament-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
    min-height: 8rem;
    /* approx 5-6 lines to align tags */
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.filament-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem 1rem;
    margin-bottom: var(--spacing-md);
}

.spec-badge {
    background: transparent;
    border: none;
    padding: 0;
    border-radius: 0;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.spec-label {
    color: var(--text-muted);
    min-width: 80px;
}

.spec-value {
    color: var(--text-primary);
    font-weight: 600;
}

.filament-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    background: rgba(255, 107, 53, 0.15);
    color: var(--orange-light);
    padding: 0.25rem 0.625rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ===================================
   RECOMMENDATION SECTIONS
   =================================== */
.filament-recommendations {
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.recommendation-section {
    background: rgba(255, 107, 53, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
}

.recommendation-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--orange-primary);
    margin-bottom: 0.375rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.recommendation-placeholder {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    margin: 0;
}

.warning-message {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.15), rgba(255, 152, 0, 0.1));
    border: 2px solid var(--warning-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: 15px;
    text-align: center;
    animation: shake 0.5s ease;
}

.warning-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.warning-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--warning-color);
    margin-bottom: var(--spacing-sm);
}

.warning-text {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===================================
   COLLAPSIBLE ALTERNATIVES
   =================================== */
.collapsible-header {
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.collapsible-header:hover {
    background: rgba(255, 107, 53, 0.1);
}

.chevron {
    font-size: 1rem;
    transition: transform var(--transition-normal);
    color: var(--orange-primary);
}

.collapsible-content {
    display: grid;
    grid-template-rows: 0fr;
    overflow: hidden;
    overflow-x: hidden;
    transition: grid-template-rows 0.5s ease-out, opacity 0.3s ease-out, padding-top 0.3s ease;
    opacity: 0;
}

.collapsible-content.open {
    grid-template-rows: 1fr;
    opacity: 1;
    transition: grid-template-rows 0.5s ease-in, opacity 0.5s ease-in, padding-top 0.3s ease;
}

.collapsible-wrapper {
    min-height: 0;
    padding-top: 15px;
    padding-bottom: 15px;
    margin-top: -10px;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

.footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer a:hover {
    color: var(--text-secondary);
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes titleGlow {
    0% {
        filter: drop-shadow(0 0 10px rgba(255, 85, 0, 0.2));
    }

    100% {
        filter: drop-shadow(0 0 25px rgba(255, 85, 0, 0.6));
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(30px);
        filter: blur(5px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
        filter: blur(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
        text-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    }

    50% {
        transform: translateY(-15px);
        text-shadow: 0 20px 30px rgba(0, 0, 0, 0.5);
    }
}

@keyframes pulse {

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

    50% {
        transform: scale(1.1);
    }
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-10px);
    }

    75% {
        transform: translateX(10px);
    }
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 768px) {
    .header-title {
        font-size: 2rem;
    }

    .header-icon {
        font-size: 3rem;
    }

    .wizard-section {
        padding: var(--spacing-md);
    }

    .step-title {
        font-size: 1.5rem;
    }

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

    .progress-bar {
        padding: 0;
    }

    .step-label {
        font-size: 0.75rem;
    }

    .step-number {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }

    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .results-title {
        font-size: 1.5rem;
    }

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

    .button-group {
        flex-direction: column;
    }

    .btn-next {
        max-width: 100%;
    }


    .header {
        position: relative;
        display: flex;
        flex-direction: column;
        padding-top: 7rem;
    }

    .lang-toggle {
        position: absolute;
        top: 0.2rem;
        right: 0.2rem;
        margin: 0;
        justify-content: center;
        width: fit-content;
        font-size: 0.5rem;
        padding: 0.30rem 0.60rem;
    }

    /* Mobile Result Card Compactness */
    .filament-card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
    }

    .filament-name {
        font-size: 1.2rem;
    }

    .filament-description {
        font-size: 0.9rem;
        margin-bottom: var(--spacing-sm);
        display: -webkit-box;
        -webkit-line-clamp: 3;
        line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .filament-specs {
        grid-template-columns: 1fr 1fr;
        gap: 0.25rem 0.5rem;
        margin-bottom: var(--spacing-sm);
    }

    .spec-badge {
        font-size: 0.8rem;
    }

    .spec-label {
        min-width: 70px;
    }

    .filament-tags {
        gap: 0.25rem;
    }

    .tag {
        font-size: 0.75rem;
        padding: 0.2rem 0.5rem;
    }

    .card-content {
        padding: var(--spacing-sm);
    }

    .card-icon {
        font-size: 2.5rem;
        height: 50px;
        margin-bottom: 0.5rem;
    }

    .card-icon img,
    .card-icon svg {
        width: 50px;
        height: 50px;
    }

    .card-title {
        font-size: 1.1rem;
    }

    .category-title {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-xs);
    }

    .header {
        padding: var(--spacing-lg) 0;
    }

    .wizard-section {
        padding: var(--spacing-sm);
    }

    .filament-card {
        padding: var(--spacing-sm);
    }

    .filament-specs {
        grid-template-columns: 1fr;
    }

    .card-content {
        padding: var(--spacing-sm);
    }

    .card-icon {
        font-size: 2.5rem;
    }
}

/* ===================================
   RECOMMENDED PRODUCTS
   =================================== */
.filament-recommendations {
    margin-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
}

.recommendation-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    border: none;
    padding: 0.5rem 0;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s;
}

.recommendation-toggle:hover,
.recommendation-toggle.active {
    color: var(--primary-color);
}

.recommendation-title-text {
    font-size: 1rem;
    font-weight: 600;
}

.recommendation-toggle .chevron {
    transition: transform 0.3s ease;
}

.recommendation-content {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    overflow: hidden;
    overflow-x: hidden;
    margin-top: 0;
    transition: grid-template-rows 0.3s ease-out, opacity 0.3s ease-out, margin-top 0.3s ease-out;
}

.recommendation-content.open {
    grid-template-rows: 1fr;
    opacity: 1;
    margin-top: 1rem;
}

.recommendation-list {
    min-height: 0;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    overflow-y: hidden;
}

.product-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: var(--transition);
    overflow: visible;
}

.product-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}


/* Disable only product-card hover animation in recommendation-list */
.recommendation-list .product-card:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.05);
    transform: none;
}

.product-icon-wrapper {
    width: 86px;
    height: 86px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: 8px;
    padding: 5px;
}

.filament-icon {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
}

.product-details {
    flex-grow: 1;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    min-width: 0;
    flex-wrap: wrap;
    gap: 1rem;
}

.product-brand-container {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex-shrink: 0;
}

.product-brand {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
}

.product-website {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.product-website:hover {
    color: var(--orange-primary);
}

/* Discount Reveal Button */
.discount-container {
    position: relative;
    flex-shrink: 0;
    min-width: 120px;
    margin-left: 0;
}

.btn-reveal-code {
    background: var(--bg-card);
    border: 1px dashed var(--gold-color);
    color: var(--gold-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-family: monospace;
    font-size: 1rem;
    width: 140px;
    height: 40px;
    max-width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-sizing: border-box;
    line-height: 1.2;

}

.btn-reveal-code:hover {
    background: rgba(255, 215, 0, 0.1);
}

.btn-reveal-code.revealed {
    background: rgba(255, 215, 0, 0.15);
    border-color: var(--gold-color);
    color: var(--gold-color);
    border-style: solid;
    cursor: default;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.1);
}

.code-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

.code-text.copied {
    color: var(--text-primary);
    font-weight: 700;
    font-family: monospace;
}

.blur-code {
    font-family: monospace;
    font-weight: bold;
    color: var(--primary-color);
    filter: blur(5px);
    user-select: none;
    transition: filter 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    padding: 0 4px;
    border-radius: 4px;
}

.revealed-code {
    filter: blur(0);
    color: #4CAF50;
    background: transparent;
}

.discount-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--primary-color);
    color: white;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 2px 6px;
    border-bottom-left-radius: 6px;
    border-top-right-radius: 7px;
    flex-shrink: 0;
    white-space: nowrap;
    z-index: 10;
    box-shadow: -2px 2px 4px rgba(0, 0, 0, 0.2);
}

.verified-badge {
    position: absolute;
    top: 0;
    left: 8px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: white;
    font-size: 0.95rem;
    font-weight: 700;
    flex-shrink: 0;
    white-space: nowrap;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 30px;
    padding-top: 0px;
    line-height: 1;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 50% 100%, 0 85%);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .product-card {
        flex-direction: column;
        text-align: center;
        padding: 1.25rem 1rem;
    }

    .product-details {
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: 0.75rem;
        flex-wrap: nowrap;
        width: 100%;
    }

    .product-brand-container {
        align-items: center;
        text-align: center;
        width: 100%;
    }

    .product-brand {
        font-size: 1rem;
        white-space: normal;
        text-overflow: unset;
        overflow: visible;
        max-width: 100%;
    }

    .product-website {
        font-size: 1rem;
    }

    .discount-container {
        width: 100%;
    }

    .btn-reveal-code {
        justify-content: center;
        width: 50%;
        max-width: 100%;
    }
}