/* --- Global Styles & Variables --- */
:root {
    --color-green: #10b981; /* Modern green */
    --color-blue: #3b82f6;   /* Modern blue */
    --color-dark: #1f2937;   /* Deep gray-black */
    --color-grey: #6b7280;      /* Modern gray */
    --color-light-grey: #f9fafb; /* Subtle light background */
    --color-white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --border-radius: 12px;
    --border-radius-lg: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding-top: 100px; /* Offset for fixed navbar */
    color: var(--color-grey);
    background-color: var(--color-white);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3 {
    color: var(--color-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 { 
    font-size: 3.5rem; 
    font-weight: 800;
}
h2 { 
    font-size: 2.5rem; 
    text-align: center; 
    margin-bottom: 1.5rem;
    font-weight: 700;
}
h3 { 
    font-size: 1.5rem; 
    color: var(--color-dark);
    font-weight: 600;
}

p { 
    margin-bottom: 1rem; 
    line-height: 1.7;
}
a { 
    color: var(--color-blue); 
    text-decoration: none;
    transition: all 0.3s ease;
}
a:hover {
    color: var(--color-green);
}
.text-center { text-align: center; margin-top: 2rem; }
.section-subtitle { 
    text-align: center; 
    max-width: 650px; 
    margin: -0.5rem auto 3rem auto; 
    font-size: 1.2rem; 
    color: var(--color-grey);
    line-height: 1.7;
}
.divider { border: 0; height: 1px; background: #e5e7eb; margin: 4rem 0; }

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: var(--shadow-sm);
}
.btn-primary {
    background: linear-gradient(135deg, var(--color-green), #059669);
    color: var(--color-white);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}
.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-blue);
    border: 2px solid #e5e7eb;
}
.btn-secondary:hover {
    background-color: var(--color-blue);
    color: var(--color-white);
    border-color: var(--color-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* --- Navigation Bar --- */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    height: 100px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
.nav-logo {
    display: flex;
    align-items: center;
    height: 100%;
}
.logo-img {
    height: 80px;
    width: auto;
    max-width: 280px;
    display: block;
    object-fit: contain;
    background: transparent !important;
    mix-blend-mode: normal;
    padding: 10px 0;
}
.nav-menu {
    list-style: none;
    display: flex;
    gap: 32px;
    margin: 0;
    padding: 0;
}
.nav-menu a {
    color: var(--color-grey);
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    position: relative;
}
.nav-menu a.active, .nav-menu a:hover {
    color: var(--color-dark);
}
.nav-menu a.active::after,
.nav-menu a:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-green), var(--color-blue));
    border-radius: 2px;
}
.nav-cta {
    padding: 10px 24px;
}
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
}
.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--color-dark);
    margin: 3px 0;
    border-radius: 2px;
    transition: all 0.3s ease;
}
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}
.logo-img {
    height: 60px;
    max-width: 250px;
    object-fit: contain;
}
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    z-index: 98;
}
.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, #f0f9ff 0%, #f9fafb 100%);
    padding: 100px 0 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.hero .container {
    position: relative;
    z-index: 1;
}
.hero h1 {
    color: var(--color-dark);
    margin-bottom: 1.5rem;
}
.hero .subtitle {
    font-size: 1.3rem;
    max-width: 700px;
    margin: 0 auto 2.5rem auto;
    color: var(--color-grey);
}
.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* --- Page Header (for other pages) --- */
.page-header {
    background: linear-gradient(135deg, #f0f9ff 0%, #f9fafb 100%);
    padding: 60px 0;
    text-align: center;
    border-bottom: 1px solid #e5e7eb;
}
.page-header h1 {
    margin-bottom: 1rem;
}
.page-header p {
    font-size: 1.25rem;
    color: var(--color-grey);
    max-width: 700px;
    margin: 0 auto;
}
.page-content {
    padding: 80px 20px;
}

/* --- How It Works Section --- */
.how-it-works {
    padding: 80px 20px;
    background: var(--color-white);
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}
.step-card {
    text-align: center;
    padding: 2.5rem;
    background: var(--color-white);
    border: 1px solid #e5e7eb;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}
.step-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-green);
}
.step-icon {
    font-size: 3rem;
    color: var(--color-green);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(59, 130, 246, 0.1));
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
}

/* --- Services Preview Section --- */
.services-preview {
    padding: 80px 20px;
    background: var(--color-light-grey);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}
.service-card {
    background: var(--color-white);
    padding: 2.5rem;
    text-align: center;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-blue);
}
.service-card i {
    font-size: 3rem;
    color: var(--color-blue);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
}
.service-card h3 {
    color: var(--color-dark);
    margin-bottom: 0.75rem;
    font-size: 1.3rem;
}
.service-card p {
    color: var(--color-grey);
    line-height: 1.6;
}

/* --- Why Choose Us Section --- */
.why-choose-us {
    padding: 80px 20px;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 3rem;
}
.feature-item {
    text-align: center;
}
.feature-item i {
    font-size: 3rem;
    color: var(--color-green);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05));
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
}
.feature-item h3 {
    color: var(--color-dark);
    margin-bottom: 0.75rem;
    font-size: 1.4rem;
}
.feature-item p {
    color: var(--color-grey);
    line-height: 1.7;
}

/* --- CTA Section --- */
.cta-section {
    background: linear-gradient(135deg, var(--color-blue), #2563eb);
    padding: 80px 20px;
    text-align: center;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.cta-section h2 {
    color: var(--color-white);
}
.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
}
.cta-section .btn-primary {
    background: var(--color-white);
    color: var(--color-blue);
    border: 2px solid var(--color-white);
}
.cta-section .btn-primary:hover {
    background: var(--color-green);
    color: var(--color-white);
    border-color: var(--color-green);
}
.cta-section .btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}
.cta-section .btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-blue);
    border-color: var(--color-white);
}

/* --- Footer --- */
.footer {
    background: #111827;
    color: #9ca3af;
    padding: 60px 20px 30px 20px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 40px;
    margin-bottom: 3rem;
}
.footer-col h3 {
    color: var(--color-white);
    margin-bottom: 1.2rem;
    font-size: 1.2rem;
    font-weight: 600;
}
.footer-col p {
    color: #9ca3af;
    line-height: 1.7;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col ul li {
    margin-bottom: 12px;
}
.footer-col ul a {
    color: #9ca3af;
    transition: color 0.3s ease;
}
.footer-col ul a:hover {
    color: var(--color-green);
}
.social-icons {
    display: flex;
    gap: 12px;
}
.social-icons a {
    color: #9ca3af;
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}
.social-icons a:hover {
    color: var(--color-white);
    background: var(--color-green);
    transform: translateY(-3px);
}
.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #6b7280;
}

/* --- Services Page --- */
.services-list .service-item {
    display: flex;
    align-items: center;
    gap: 24px;
    background: var(--color-white);
    padding: 24px;
    border-radius: var(--border-radius-lg);
    margin-bottom: 20px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}
.services-list .service-item:hover {
    box-shadow: var(--shadow);
    transform: translateX(4px);
}
.services-list .service-item i {
    font-size: 2.5rem;
    color: var(--color-blue);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
    border-radius: 50%;
    flex-shrink: 0;
}
.services-list .service-item h3 {
    color: var(--color-dark);
    margin-bottom: 8px;
    font-size: 1.3rem;
}
.services-list .service-item p {
    color: var(--color-grey);
}
.prohibited-items h2 {
    text-align: left;
    color: #ef4444;
    margin-top: 2rem;
}
.prohibited-items ul {
    list-style: none;
    padding: 0;
}
.prohibited-items li {
    font-size: 1.1rem;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-grey);
}
.prohibited-items li i {
    color: #ef4444;
    font-size: 1.2rem;
}

/* --- How-It-Works Page --- */
.how-it-works-detailed .how-step {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    margin-bottom: 3rem;
    padding: 24px;
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}
.how-it-works-detailed .how-step:hover {
    box-shadow: var(--shadow);
    transform: translateX(4px);
}
.how-step-icon {
    font-size: 3rem;
    color: var(--color-green);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(59, 130, 246, 0.1));
    min-width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}
.how-step-text h3 {
    color: var(--color-dark);
    margin-bottom: 0.75rem;
    font-size: 1.4rem;
}
.how-step-text p {
    color: var(--color-grey);
    line-height: 1.7;
}

/* --- About Page --- */
.mission-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin: 3rem 0;
}
.mission-card {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--color-blue);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}
.mission-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.mission-card h3 {
    color: var(--color-dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}
.mission-card p {
    color: var(--color-grey);
    line-height: 1.7;
}
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px;
    text-align: center;
    margin-top: 3rem;
}
.value-item i {
    font-size: 3rem;
    color: var(--color-green);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05));
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
}
.value-item h3 {
    color: var(--color-dark);
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}
.value-item p {
    color: var(--color-grey);
    line-height: 1.6;
}

/* --- Contact Page --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
}
.contact-info {
    padding: 24px;
}
.contact-info h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
}
.contact-info p {
    color: var(--color-grey);
    line-height: 1.7;
    margin-bottom: 2rem;
}
.contact-info i {
    color: var(--color-green);
    margin-right: 12px;
    width: 24px;
    text-align: center;
    font-size: 1.2rem;
}
.contact-spacing {
    margin-top: 2rem;
}
.contact-form-container {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid #e5e7eb;
}
.contact-form-container h3 {
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.6rem;
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-dark);
    font-size: 0.95rem;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    font-size: 1rem;
    box-sizing: border-box;
    font-family: inherit;
    transition: all 0.3s ease;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.form-group textarea {
    resize: vertical;
    min-height: 120px;
}
.contact-form .btn {
    width: 100%;
    margin-top: 0.5rem;
}

/* --- Responsive Media Queries --- */
@media (max-width: 992px) {
    .navbar .container {
        position: relative;
    }
    .hamburger {
        display: flex;
    }
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(240, 249, 255, 0.92));
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        flex-direction: column;
        padding: 2rem 0;
        gap: 0;
        box-shadow: -2px 0 30px rgba(0, 0, 0, 0.15);
        transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 99;
        overflow-y: auto;
        border-left: 1px solid rgba(255, 255, 255, 0.3);
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-menu li {
        width: 100%;
        text-align: center;
        padding: 0;
        margin: 0.3rem 0;
    }
    .nav-menu a {
        display: block;
        padding: 1.2rem 2rem;
        font-size: 1.2rem;
        border-bottom: 1px solid rgba(229, 231, 235, 0.3);
        transition: all 0.3s ease;
        position: relative;
    }
    .nav-menu a:hover {
        background: rgba(16, 185, 129, 0.08);
        transform: translateX(5px);
    }
    .nav-menu a.active {
        background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(59, 130, 246, 0.12));
        font-weight: 600;
    }
    .nav-menu a::after {
        display: none;
    }
    .nav-cta {
        display: none;
    }
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }
    .hero {
        padding: 80px 0 100px 0;
    }
    .hero h1 { font-size: 2.5rem; }
    .mission-vision { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    .navbar {
        height: 70px;
    }
    .nav-menu {
        top: 70px;
        height: calc(100vh - 70px);
    }
    .logo-img {
        height: 45px;
        max-width: 180px;
    }
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .hero {
        padding: 60px 0 80px 0;
    }
    .hero h1 { font-size: 2rem; }
    .hero .subtitle { font-size: 1.1rem; }
    .page-header h1 { font-size: 2rem; }
    .page-header p { font-size: 1rem; }
    .steps-grid, .services-grid, .features-grid, .values-grid {
        grid-template-columns: 1fr;
    }
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    .btn {
        width: 100%;
        max-width: 300px;
    }
    .how-it-works-detailed .how-step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .services-list .service-item {
        flex-direction: column;
        text-align: center;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-col ul {
        text-align: center;
    }
    .social-icons {
        justify-content: center;
    }
    .section-subtitle {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    body {
        padding-top: 65px;
    }
    .navbar {
        height: 65px;
    }
    .nav-menu {
        top: 65px;
        height: calc(100vh - 65px);
    }
    .logo-img {
        height: 40px;
        max-width: 160px;
    }
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.2rem; }
    .hero h1 { font-size: 1.8rem; }
    .hero .subtitle { font-size: 1rem; }
    .page-header h1 { font-size: 1.8rem; }
    .page-header p { font-size: 0.95rem; }
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
    .step-icon, .service-card i, .feature-item i {
        font-size: 2.5rem;
        width: 60px;
        height: 60px;
    }
    .page-content {
        padding: 60px 20px;
    }
}