/* BiTA Components - Premium Apple-Level Design */

/* =================================
   NAVIGATION - REFINED
   ================================= */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-5) 0;
    transition: all 0.5s var(--ease-out-expo);
}

.nav.scrolled {
    background: rgba(3, 14, 59, 0.85);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: var(--space-3) 0;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    transition: opacity 0.3s;
}

.nav-logo:hover {
    opacity: 0.85;
}

.nav-logo-img {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
}

.nav-logo-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    letter-spacing: -0.01em;
}

.nav-logo-text-accent {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-10);
}

.nav-links a {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s var(--ease-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s var(--ease-out-expo);
}

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

.nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-2);
    cursor: pointer;
}

.nav-mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all 0.3s var(--ease-smooth);
    border-radius: 1px;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-cta {
        display: none;
    }
    
    .nav-mobile-toggle {
        display: flex;
    }
}

/* =================================
   BUTTONS - PREMIUM
   ================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.4s var(--ease-out-expo);
    white-space: nowrap;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.35s var(--ease-spring);
}

.btn:hover .btn-icon {
    transform: translateX(5px);
}

/* Button ripple effect */
.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s var(--ease-out-expo), height 0.5s var(--ease-out-expo);
}

.btn:active::before {
    width: 400px;
    height: 400px;
}

/* Primary Button */
.btn-primary {
    background: var(--color-white);
    color: var(--color-primary);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.92);
    transform: translateY(-3px);
}

/* Gold Button - Main CTA */
.btn-gold {
    background: linear-gradient(135deg, var(--color-accent) 0%, #f5a623 100%);
    color: var(--color-primary);
}

.btn-gold:hover {
    background: linear-gradient(135deg, #ffe082 0%, var(--color-accent) 100%);
    transform: translateY(-3px);
}

/* Ghost Button */
.btn-ghost {
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-ghost:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
}

.btn-outline:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-3px);
}

/* Button Sizes */
.btn-large {
    padding: var(--space-5) var(--space-10);
    font-size: var(--font-size-base);
}

.btn-xlarge {
    padding: var(--space-6) var(--space-12);
    font-size: var(--font-size-lg);
}

.btn-full {
    width: 100%;
}

/* =================================
   FEATURE CARDS - PREMIUM
   ================================= */

.feature-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-3xl);
    padding: var(--space-10);
    transition: all 0.5s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

/* Gradient overlay on hover */
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg, 
        rgba(255, 255, 255, 0.03) 0%, 
        transparent 60%
    );
    opacity: 0;
    transition: opacity 0.5s var(--ease-smooth);
}

/* Subtle glow on hover */
.feature-card::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(255, 193, 7, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s var(--ease-smooth);
    pointer-events: none;
}

.feature-card:hover {
    transform: translateY(-12px);
    border-color: rgba(255, 193, 7, 0.2);
    background: rgba(255, 255, 255, 0.04);
}

.feature-card:hover::before,
.feature-card:hover::after {
    opacity: 1;
}

.feature-card.featured {
    border-color: rgba(255, 193, 7, 0.4);
    background: rgba(255, 193, 7, 0.04);
}

.feature-badge {
    position: absolute;
    top: var(--space-5);
    right: var(--space-5);
    background: linear-gradient(135deg, var(--color-accent) 0%, #f5a623 100%);
    color: var(--color-primary);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.feature-icon-wrapper {
    margin-bottom: var(--space-8);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #f5a623 100%);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    position: relative;
}

.feature-icon::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.4), transparent);
    z-index: -1;
    filter: blur(8px);
}

.feature-icon svg {
    width: 30px;
    height: 30px;
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    color: var(--color-white);
    letter-spacing: -0.01em;
}

.feature-description {
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: var(--space-8);
    line-height: 1.75;
    font-size: var(--font-size-base);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.feature-list li {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.feature-list li::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
}

/* =================================
   TESTIMONIAL CARDS - PREMIUM
   ================================= */

.testimonial-card {
    background: var(--color-white);
    border-radius: var(--radius-3xl);
    padding: var(--space-10);
    border: 1px solid var(--color-gray-100);
    transition: all 0.5s var(--ease-out-expo);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: var(--space-6);
    right: var(--space-8);
    font-size: 5rem;
    font-family: Georgia, serif;
    color: rgba(255, 193, 7, 0.1);
    line-height: 1;
    pointer-events: none;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 193, 7, 0.3);
}

.testimonial-stars {
    color: var(--color-accent);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-5);
    letter-spacing: 3px;
}

.testimonial-text {
    font-size: var(--font-size-base);
    color: var(--text-light-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-8);
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.author-avatar {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent) 0%, #f5a623 100%);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-base);
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.author-name {
    font-weight: var(--font-weight-semibold);
    color: var(--text-light-primary);
    font-size: var(--font-size-base);
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--text-light-muted);
}

/* =================================
   PRICING CARDS - PREMIUM
   ================================= */

.pricing-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    transition: all 0.5s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: transparent;
    transition: background 0.4s var(--ease-smooth);
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
}

.pricing-card:hover::before {
    background: linear-gradient(90deg, transparent, rgba(255, 193, 7, 0.5), transparent);
}

.pricing-card.featured {
    border: 2px solid var(--color-accent);
    background: rgba(255, 193, 7, 0.03);
    transform: scale(1.03);
}

.pricing-card.featured::before {
    background: linear-gradient(90deg, var(--color-accent), #ffe082, var(--color-accent));
}

.pricing-card.featured:hover {
    transform: scale(1.03) translateY(-12px);
}

.pricing-badge {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, var(--color-accent) 0%, #f5a623 100%);
    color: var(--color-primary);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.pricing-name {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-3);
    color: rgba(255, 255, 255, 0.6);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-1);
    margin-bottom: var(--space-3);
}

.price-amount {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    letter-spacing: -0.03em;
}

.price-period {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.4);
}

.pricing-description {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.4);
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.6);
}

.pricing-features li .check {
    color: var(--color-accent);
    font-weight: var(--font-weight-bold);
}

.pricing-features li .x {
    color: rgba(255, 255, 255, 0.25);
}

.pricing-features li.disabled {
    color: rgba(255, 255, 255, 0.3);
}

/* Discount Styles */
.pricing-discount-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: #22c55e;
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-md);
    z-index: 2;
}

.price-original {
    text-decoration: line-through;
    color: rgba(255, 255, 255, 0.4);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    margin-right: var(--space-2);
}

.price-amount.discounted {
    color: #22c55e;
}

.discount-label {
    display: inline-block;
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    margin-top: var(--space-2);
}

/* =================================
   SECTION HEADERS - REFINED
   ================================= */

.section-header {
    text-align: center;
    margin-bottom: var(--space-20);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-5);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-5);
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.55);
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Light section subtitle */
.how-it-works .section-subtitle,
.testimonials .section-subtitle {
    color: var(--text-light-secondary);
}

/* =================================
   PRICING SKELETON LOADERS
   ================================= */

.pricing-card-skeleton {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-2xl);
    height: 420px;
    position: relative;
    overflow: hidden;
}

.pricing-card-skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.03) 50%,
        transparent 100%
    );
    animation: shimmer 1.8s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}