/* Modern Landing Page Styles - shadcn UI Inspired */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --background: #ffffff;
    --foreground: #0f172a;
    --muted: #f1f5f9;
    --muted-foreground: #64748b;
    --border: #e2e8f0;
    --input: #f8fafc;
    --ring: #6366f1;
    --radius: 0.5rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700;800&display=swap');

body {
    font-family: 'Inter', 'Hind Siliguri', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--background);
    color: var(--foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Bangla text styling */
[lang="bn"],
.bangla-text {
    font-family: 'Hind Siliguri', 'Inter', sans-serif;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--foreground);
}

.brand-icon {
    font-size: 1.5rem;
}

.brand-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 0.625rem 1.25rem;
    background: transparent;
    border: 1px solid transparent;
    color: var(--foreground);
    font-weight: 500;
    cursor: pointer;
    border-radius: calc(var(--radius) + 2px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.9375rem;
}

.btn-ghost:hover {
    background: var(--muted);
    border-color: var(--border);
    color: var(--primary);
}

.btn-primary-nav {
    display: inline-flex;
    align-items: center;
    padding: 0.625rem 1.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    font-weight: 600;
    cursor: pointer;
    border-radius: calc(var(--radius) + 2px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.9375rem;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-primary-nav::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: left 0.5s;
}

.btn-primary-nav:hover::before {
    left: 100%;
}

.btn-primary-nav:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #7c3aed 100%);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-primary-nav:active {
    transform: translateY(0);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    top: -200px;
    left: -200px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    bottom: -150px;
    right: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #ec4899 0%, #f59e0b 100%);
    top: 50%;
    right: 10%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--foreground);
    letter-spacing: -0.02em;
}

.hero-title .bangla-text {
    font-family: 'Hind Siliguri', sans-serif;
    font-weight: 700;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    margin-bottom: 2rem;
    line-height: 1.7;
    font-family: 'Hind Siliguri', 'Inter', sans-serif;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary-large {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    font-weight: 600;
    font-size: 1.0625rem;
    border-radius: calc(var(--radius) + 4px);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.btn-primary-large::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: left 0.6s;
}

.btn-primary-large:hover::before {
    left: 100%;
}

.btn-primary-large:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #7c3aed 100%);
    box-shadow: 0 20px 25px -5px rgba(99, 102, 241, 0.3), 0 10px 10px -5px rgba(99, 102, 241, 0.2);
    transform: translateY(-3px) scale(1.02);
}

.btn-primary-large:active {
    transform: translateY(-1px) scale(1);
}

.btn-secondary-large {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background: white;
    color: var(--foreground);
    border: 2px solid var(--border);
    font-weight: 500;
    font-size: 1.0625rem;
    border-radius: calc(var(--radius) + 4px);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.btn-secondary-large:hover {
    background: var(--muted);
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.hero-visual {
    position: relative;
}

.feature-showcase {
    position: relative;
    height: 500px;
}

.showcase-card {
    position: absolute;
    background: white;
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    animation: cardFloat 6s ease-in-out infinite;
}

.card-1 {
    top: 0;
    left: 0;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    animation-delay: -2s;
}

.card-3 {
    bottom: 0;
    left: 20%;
    animation-delay: -4s;
}

@keyframes cardFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.card-title {
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--foreground);
}

.card-desc {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--muted);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--foreground);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: white;
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s;
}

.feature-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--primary);
}

.feature-icon-wrapper {
    width: 3.5rem;
    height: 3.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon {
    font-size: 1.75rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--foreground);
}

.feature-text {
    color: var(--muted-foreground);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-section .btn-primary-large {
    background: white;
    color: var(--primary);
}

.cta-section .btn-primary-large:hover {
    background: var(--muted);
}

/* Footer */
.footer {
    padding: 3rem 0;
    background: var(--foreground);
    color: white;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.125rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: fadeIn 0.2s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-container {
    background: white;
    border-radius: 1rem;
    width: 100%;
    max-width: 450px;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--foreground);
    font-family: 'Hind Siliguri', 'Inter', sans-serif;
}

.modal-close {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--muted-foreground);
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--muted);
    color: var(--foreground);
}

.modal-form {
    padding: 1.5rem;
}

.form-field {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--foreground);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9375rem;
    transition: all 0.2s;
    color: var(--foreground);
}

.form-input:focus {
    outline: none;
    border-color: var(--ring);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-error {
    padding: 0.75rem;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    color: #dc2626;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    display: none;
}

.form-error:not(:empty) {
    display: block;
}

.btn-primary-full {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: calc(var(--radius) + 2px);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-primary-full::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: left 0.5s;
}

.btn-primary-full:hover::before {
    left: 100%;
}

.btn-primary-full:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #7c3aed 100%);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-primary-full:active {
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0.75rem 1rem;
    }
    
    .nav-actions {
        gap: 0.5rem;
    }
    
    .btn-ghost {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .btn-primary-nav {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .btn-primary-nav svg {
        width: 14px;
        height: 14px;
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .btn-primary-large,
    .btn-secondary-large {
        width: 100%;
        justify-content: center;
        padding: 0.875rem 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .showcase-card {
        position: relative;
        margin-bottom: 1rem;
    }
    
    .feature-showcase {
        height: auto;
    }
    
    .modal-container {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-description {
        font-size: 0.9375rem;
    }
    
    .modal-container {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-form {
        padding: 1rem;
    }
    
    .btn-primary-nav {
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
    }
    
    .btn-ghost {
        padding: 0.5rem 0.625rem;
        font-size: 0.8125rem;
    }
}