/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --corporate-blue: #1e40af;
    --corporate-blue-dark: #1e3a8a;
    --corporate-gray: #6b7280;
    --light-gray: #f3f4f6;
    --accent: #10b981;
    --accent-dark: #059669;
    --white: #ffffff;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2rem;
    }
}

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--corporate-blue);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 2rem;
    width: auto;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu li a {
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu li a:hover {
    color: var(--corporate-blue);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: 0.3s;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: 0.3s;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        width: 100%;
        padding: 0.75rem 0;
    }

    .nav-menu li a {
        display: block;
        padding: 0.5rem;
    }
}

/* Buttons */
.btn-primary {
    background: var(--corporate-blue);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: background 0.3s;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--corporate-blue-dark);
}

/* Navigation button - ensure visibility */
.nav-menu li a.btn-primary {
    background: var(--accent) !important;
    color: var(--white) !important;
    border: none;
}

.nav-menu li a.btn-primary:hover {
    background: var(--accent-dark) !important;
    color: var(--white) !important;
}

.btn-accent {
    background: var(--accent);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1.125rem;
    transition: background 0.3s;
    display: inline-block;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-accent:hover {
    background: var(--accent-dark);
}

/* Hero Section */
.hero {
    position: relative;
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: 1;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
}

.hero-content h1 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .hero {
        padding: 8rem 0;
    }

    .hero-content h1 {
        font-size: 3.75rem;
    }

    .hero-content p {
        font-size: 1.5rem;
    }
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    max-width: 48rem;
    margin: 0 auto 2rem;
    text-align: center;
}

@media (min-width: 768px) {
    .section {
        padding: 6rem 0;
    }

    .section-title {
        font-size: 2.5rem;
    }
}

.bg-light {
    background: var(--light-gray);
}

/* Grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-3 {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

.grid-2 {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Cards */
.card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
}

.card p {
    font-size: 1.125rem;
    color: var(--text-dark);
}

.icon-red {
    color: #ef4444;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-card {
    background: linear-gradient(135deg, #eff6ff 0%, var(--white) 100%);
    padding: 2rem;
    border-radius: 0.5rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s, transform 0.3s;
}

.feature-card:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-4px);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: bold;
    margin: 1rem 0;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-gray);
}

.icon-large {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s, transform 0.3s;
    display: block;
    text-align: center;
}

.service-card:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-8px);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin: 1rem 0;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.link-text {
    color: var(--corporate-blue);
    font-weight: 600;
}

.highlight-card {
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.highlight-card.accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
}

.highlight-card:not(.accent) {
    background: #eff6ff;
    color: var(--text-dark);
}

.highlight-card h3 {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.75rem;
}

.highlight-card p {
    opacity: 0.9;
}

/* Case Study Grid */
.case-study-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    max-width: 100%;
    margin: 0 auto;
}

.case-study-item {
    background: var(--white);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s, transform 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 4 / 3;
    padding: 0.5rem;
}

.case-study-item:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.case-study-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

@media (max-width: 768px) {
    .case-study-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .case-study-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 0.5rem;
    }
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--corporate-blue) 0%, #2563eb 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .cta-section {
        padding: 6rem 0;
    }

    .cta-section h2 {
        font-size: 2.5rem;
    }
}

/* Footer */
.footer {
    background: #111827;
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-col h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.footer-col h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-col p {
    color: #9ca3af;
    margin-bottom: 0.5rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul li a {
    color: #9ca3af;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-5 {
    margin-bottom: 3rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.form-group label span {
    color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--corporate-blue);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background: #d1fae5;
    border-left: 4px solid var(--accent);
    color: #065f46;
}

.alert-warning {
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    color: #92400e;
}

.notice-box {
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
}

.notice-box h2 {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.notice-box p {
    color: #92400e;
    line-height: 1.6;
}

.notice-box strong {
    color: var(--corporate-blue);
}

/* Process Steps */
.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    margin-bottom: 4rem;
}

@media (min-width: 768px) {
    .process-step {
        flex-direction: row;
    }
}

.step-number {
    width: 6rem;
    height: 6rem;
    background: var(--corporate-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    flex-shrink: 0;
}

.process-content {
    flex: 1;
    background: #eff6ff;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.process-content h2 {
    font-size: 1.875rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.process-content p {
    font-size: 1.125rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.process-content ul {
    list-style: none;
    padding-left: 0;
}

.process-content ul li {
    padding: 0.5rem 0;
    color: var(--text-gray);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.process-content ul li:before {
    content: "•";
    color: var(--accent);
    font-weight: bold;
}

.process-highlight {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    padding: 3rem 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.process-highlight .step-number {
    background: var(--white);
    color: var(--accent);
}

.process-highlight h2 {
    color: var(--white);
    font-size: 2rem;
}

.process-highlight p {
    color: rgba(255, 255, 255, 0.9);
}

.highlight-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
}

.highlight-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.highlight-box h3 {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.75rem;
}

.highlight-box ul {
    list-style: none;
    padding-left: 0;
}

.highlight-box ul li {
    padding: 0.5rem 0;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.highlight-box ul li:before {
    content: "✓";
}