/* ============================================
   OBBA Landing Page - Modern UI/UX Styles
   ============================================ */

/* === CSS Variables === */
:root {
    /* Primary Colors */
    --primary-color: #487fff;
    --primary-dark: #487fff;
    --primary-light: #487fff;

    /* Secondary Colors */
    --secondary-color: #06b6d4;
    --secondary-dark: #0891b2;

    /* Accent Colors */
    --accent-color: #f59e0b;
    --accent-green: #10b981;

    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #487fff 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #487fff 0%, #00f2fe 100%);
    --gradient-hero: linear-gradient(135deg, #487fff 0%, #764ba2 50%, #f093fb 100%);

    /* Spacing */
    --section-padding: 100px 0;
    --card-padding: 2rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Transitions */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Global Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-900);
    line-height: 1.6;
    overflow-x: hidden;
    background: #ffffff;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

section {
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
}

/* === Navigation === */
.navbar {
    padding: 1.25rem 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: var(--transition-base);
}

.navbar-scrolled {
    padding: 0.75rem 0;
    box-shadow: var(--shadow-md);
}

.navbar-brand .logo-text {
    font-family: 'Poppins', sans-serif;
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700) !important;
    transition: var(--transition-base);
    padding: 0.5rem 1rem !important;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    font-weight: 600;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* === Hero Section === */
.hero-section {
    padding: 140px 0 100px;
    background: linear-gradient(135deg, #f6f9fc 0%, #e9f2fa 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    padding: 2rem 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.hero-buttons .btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.hero-features {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-600);
    font-size: 0.95rem;
}

.hero-feature-item i {
    color: var(--accent-green);
    font-size: 1.2rem;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.hero-image-wrapper img {
    border-radius: var(--radius-xl);
    width: 100%;
    height: auto;
}

/* Floating Cards */
.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: float 3s ease-in-out infinite;
}

.floating-card i {
    font-size: 2rem;
    color: var(--primary-color);
}

.floating-card small {
    display: block;
    color: var(--gray-500);
    font-size: 0.75rem;
}

.floating-card strong {
    display: block;
    font-size: 1.5rem;
    color: var(--gray-900);
}

.floating-card-1 {
    top: 10%;
    right: -5%;
    animation-delay: 0s;
}

.floating-card-2 {
    bottom: 10%;
    left: -5%;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Background Shapes */
.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 500px;
    height: 500px;
    background: var(--gradient-primary);
    top: -250px;
    right: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--gradient-accent);
    bottom: -150px;
    left: -100px;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: var(--gradient-secondary);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* === Section Headers === */
.section-header {
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
}

/* === Features Section === */
.features-section {
    background: #ffffff;
}

.feature-card {
    padding: 2.5rem;
    background: #ffffff;
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-smooth);
    transform-origin: left;
}

.feature-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

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

.feature-card.featured {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.feature-card.featured .feature-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.feature-card.featured .feature-title,
.feature-card.featured .feature-description,
.feature-card.featured .feature-list li {
    color: white;
}

.feature-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    background: rgba(79, 70, 229, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: var(--transition-base);
}

.feature-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.feature-description {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-list i {
    color: var(--accent-green);
    font-size: 1.1rem;
}

/* === How It Works Section === */
.how-it-works-section {
    background: linear-gradient(135deg, #f6f9fc 0%, #e9f2fa 100%);
}

.step-card {
    text-align: center;
    padding: 2rem;
    position: relative;
}

.step-number {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    box-shadow: var(--shadow-lg);
}

.step-icon {
    width: 100px;
    height: 100px;
    margin: 4rem auto 1.5rem;
    border-radius: 50%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.step-icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.step-card:hover .step-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.step-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.step-description {
    color: var(--gray-600);
    line-height: 1.7;
}

/* === Pricing Section === */
.pricing-section {
    background: #ffffff;
}

.pricing-card {
    padding: 2.5rem;
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
    height: 100%;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-color);
}

.pricing-card.featured {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.08) translateY(-10px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: 2rem;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    padding-bottom: 2rem;
    border-bottom: 2px solid rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.pricing-card.featured .pricing-header {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.pricing-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.pricing-card.featured .pricing-name {
    color: white;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.pricing-price .currency {
    font-size: 1.5rem;
    font-weight: 600;
}

.pricing-price .amount {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
}

.pricing-price .period {
    font-size: 1.125rem;
    color: var(--gray-500);
}

.pricing-card.featured .pricing-price .period {
    color: rgba(255, 255, 255, 0.8);
}

.pricing-description {
    color: var(--gray-600);
    font-size: 0.95rem;
}

.pricing-card.featured .pricing-description {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features i {
    font-size: 1.25rem;
    color: var(--accent-green);
}

.pricing-card.featured .pricing-features i {
    color: white;
}

.pricing-features li.disabled {
    color: var(--gray-400);
}

.pricing-features li.disabled i {
    color: var(--gray-300);
}

.pricing-card.featured .btn {
    background: white;
    color: var(--primary-color);
    border: none;
}

.pricing-card.featured .btn:hover {
    background: rgba(255, 255, 255, 0.9);
}

/* === Testimonials Section === */
.testimonials-section {
    background: linear-gradient(135deg, #f6f9fc 0%, #e9f2fa 100%);
}

.testimonial-card {
    padding: 2rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    height: 100%;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.testimonial-rating {
    margin-bottom: 1.5rem;
}

.testimonial-rating i {
    color: #fbbf24;
    font-size: 1.1rem;
}

.testimonial-text {
    font-size: 1.125rem;
    color: var(--gray-700);
    margin-bottom: 1.5rem;
    font-style: italic;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--gray-100);
}

.testimonial-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.testimonial-role {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin: 0;
}

/* === FAQ Section === */
.faq-section {
    background: #ffffff;
}

.accordion-item {
    border: 2px solid var(--gray-100);
    border-radius: var(--radius-md) !important;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-button {
    font-size: 1.125rem;
    font-weight: 600;
    padding: 1.25rem 1.5rem;
    background: white;
    color: var(--gray-900);
}

.accordion-button:not(.collapsed) {
    background: var(--gradient-primary);
    color: white;
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--gray-100);
}

.accordion-body {
    padding: 1.5rem;
    color: var(--gray-700);
    line-height: 1.7;
}

/* === CTA Section === */
.cta-section {
    padding: 100px 0;
    background: var(--gradient-primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: white;
}

.cta-description {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.cta-buttons {
    margin-bottom: 1.5rem;
}

.cta-buttons .btn-light {
    background: white;
    color: var(--primary-color);
    font-weight: 700;
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-buttons .btn-light:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.cta-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin-top: 1rem;
}

.cta-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.cta-bg-shapes .shape {
    opacity: 0.15;
}

.cta-bg-shapes .shape-1 {
    width: 400px;
    height: 400px;
    background: white;
    top: -200px;
    right: -100px;
}

.cta-bg-shapes .shape-2 {
    width: 300px;
    height: 300px;
    background: white;
    bottom: -150px;
    left: -100px;
}

/* === Footer === */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 30px;
}

.footer-title {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-text {
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition-base);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
    color: white;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
    padding: 0;
}

.footer-contact li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-contact i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.footer-contact a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-contact a:hover {
    color: white;
}

.footer-divider {
    border-color: var(--gray-800);
    margin: 2.5rem 0;
}

.footer-copyright {
    color: var(--gray-500);
    font-size: 0.95rem;
    margin: 0;
}

/* === Responsive === */
@media (max-width: 991px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

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

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

    .cta-title {
        font-size: 2rem;
    }
}

@media (max-width: 767px) {
    section {
        padding: 60px 0;
    }

    .hero-section {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .floating-card {
        display: none;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }
}