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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background-color: #f9fafb;
}

/* Header Styles */
.header {
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

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

.logo-icon {
    background: #f97316;
    padding: 0.5rem;
    border-radius: 0.5rem;
    color: white;
    font-size: 1.5rem;
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1f2937;
}

.logo-text p {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: -0.25rem;
}

.nav {
    display: none;
    gap: 2rem;
}

.nav a {
    color: #374151;
    text-decoration: none;
    transition: color 0.3s;
}

.nav a:hover {
    color: #f97316;
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #fef3e2 0%, #fef9c3 100%);
    padding: 5rem 1rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.05;
}

.hero-icon {
    position: absolute;
    font-size: 4rem;
    color: #f97316;
    animation: pulse 2s infinite;
}

.hero-icon:nth-child(1) {
    top: 2.5rem;
    left: 2.5rem;
}

.hero-icon:nth-child(2) {
    top: 8rem;
    right: 5rem;
    animation-delay: 1s;
}

.hero-icon:nth-child(3) {
    bottom: 5rem;
    left: 25%;
    animation-delay: 0.5s;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.3;
    }

    50% {
        opacity: 0.7;
    }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 10;
}

.dev-banner {
    display: inline-flex;
    align-items: center;
    background: #fef3c7;
    border: 1px solid #fcd34d;
    border-radius: 9999px;
    padding: 0.5rem 1.5rem;
    margin-bottom: 2rem;
}

.dev-banner-icon {
    color: #d97706;
    margin-right: 0.5rem;
}

.dev-banner-text {
    color: #92400e;
    font-weight: 500;
}

.hero h2 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero .highlight {
    color: #f97316;
    display: block;
}

.hero p {
    font-size: 1.25rem;
    color: #6b7280;
    margin-bottom: 2rem;
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.hero-feature {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.hero-feature-icon {
    padding: 0.5rem;
    border-radius: 9999px;
    font-size: 1.25rem;
}

.green-bg {
    background: #dcfce7;
    color: #16a34a;
}

.blue-bg {
    background: #dbeafe;
    color: #2563eb;
}

@media (min-width: 640px) {
    .hero-features {
        flex-direction: row;
    }

    .hero h2 {
        font-size: 3.75rem;
    }
}

/* About Section */
.about {
    padding: 5rem 1rem;
    background: white;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
}

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

.section-header h2 {
    font-size: 2.25rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 48rem;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
}

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

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    text-align: center;
    padding: 1.5rem;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    transition: box-shadow 0.3s;
}

.feature-card:hover {
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    background: #fed7aa;
    color: #f97316;
    width: 4rem;
    height: 4rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: #6b7280;
}

.progress-section {
    background: #f9fafb;
    border-radius: 1rem;
    padding: 3rem 2rem;
    text-align: center;
}

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

.progress-section p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

.progress-bar-container {
    display: flex;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.progress-bar {
    background: #f97316;
    height: 0.5rem;
    width: 8rem;
    border-radius: 9999px;
    overflow: hidden;
}

.progress-fill {
    background: #ea580c;
    height: 100%;
    width: 25%;
    border-radius: 9999px;
    animation: pulse 2s infinite;
}

.progress-text {
    font-size: 0.875rem;
    color: #6b7280;
}

/* Feedback Section */
.feedback {
    padding: 5rem 1rem;
    background: #f9fafb;
}

.feedback-container {
    max-width: 64rem;
    margin: 0 auto;
}

.feedback-card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.feedback-header {
    text-align: center;
    padding: 2rem;
    border-bottom: 1px solid #e5e7eb;
}

.feedback-icon {
    background: #fed7aa;
    color: #f97316;
    width: 4rem;
    height: 4rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
}

.feedback-header h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.feedback-header p {
    color: #6b7280;
}

.feedback-content {
    padding: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #f97316;
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

.submit-btn {
    width: 100%;
    background: #f97316;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-btn:hover {
    background: #ea580c;
}

.submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.success-message {
    text-align: center;
    padding: 2rem;
}

.success-icon {
    color: #10b981;
    font-size: 4rem;
    margin-bottom: 1rem;
}

.success-message h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.success-message p {
    color: #6b7280;
}

.hidden {
    display: none;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

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

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

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

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

.footer-logo-icon {
    background: #f97316;
    padding: 0.5rem;
    border-radius: 0.5rem;
    color: white;
    font-size: 1.5rem;
}

.footer-logo-text h3 {
    font-size: 1.25rem;
    font-weight: bold;
}

.footer-logo-text p {
    font-size: 0.875rem;
    color: #9ca3af;
}

.footer-section p {
    color: #9ca3af;
    font-size: 0.875rem;
}

.progress-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.progress-item span:last-child {
    color: #f97316;
}

.footer-progress-bar {
    width: 100%;
    background: #374151;
    border-radius: 9999px;
    height: 0.5rem;
    margin-bottom: 0.5rem;
}

.footer-progress-fill {
    background: #f97316;
    height: 100%;
    width: 75%;
    border-radius: 9999px;
}

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

.contact-icon {
    color: #f97316;
    font-size: 1rem;
}

.contact-item span {
    font-size: 0.875rem;
    color: #9ca3af;
}

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

.footer-bottom p {
    font-size: 0.875rem;
    color: #9ca3af;
}

/* Icons using Unicode symbols */
.icon-helmet::before {
    content: "⛑️";
}

.icon-warning::before {
    content: "⚠️";
}

.icon-crane::before {
    content: "🏗️";
}

.icon-shield::before {
    content: "🛡️";
}

.icon-users::before {
    content: "👥";
}

.icon-target::before {
    content: "🎯";
}

.icon-zap::before {
    content: "⚡";
}

.icon-message::before {
    content: "💬";
}

.icon-send::before {
    content: "📤";
}

.icon-check::before {
    content: "✅";
}

.icon-mail::before {
    content: "📧";
}

.icon-location::before {
    content: "📍";
}

textarea {
    resize: none;
}