/* ============================================
   GENERAL STYLES & RESET
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1e3a8a;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: sticky;
    top: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--secondary-color);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 6px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 3rem;
    padding: 6rem 0;
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}

.hero-content {
    padding: 2rem;
}

.hero-headline {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subheadline {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--primary-color);
    color: white;
    border: 2px solid var(--primary-color);
}

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

.hero-image {
    padding: 2rem;
}

.hero-image svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(var(--shadow));
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: 6rem 0;
    background-color: var(--bg-white);
}

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

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 3rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--secondary-color);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

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

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.service-category {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.service-card p:not(.service-category) {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.service-features span {
    font-size: 0.9rem;
    color: var(--text-dark);
    text-align: left;
}

/* ============================================
   ABOUT US SECTION
   ============================================ */
.about {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.about-text h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    margin-top: 0;
}

.about-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.vision-mission {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.vision-box,
.mission-box {
    background-color: var(--bg-white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--secondary-color);
}

.vision-box h4,
.mission-box h4 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.vision-box p,
.mission-box p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

.values-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.value-item {
    background-color: var(--bg-white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 1rem;
}

.value-icon {
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.value-item strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.value-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

.about-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.info-card h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.info-detail p {
    color: var(--text-dark);
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.info-detail p strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.3rem;
}

.k3-commitment p {
    color: var(--text-light);
    line-height: 1.7;
}

.k3-commitment ul {
    color: var(--text-light);
    line-height: 1.8;
}

.k3-commitment ul li {
    margin-bottom: 0.8rem;
}

/* ============================================
   ADVANTAGES SECTION
   ============================================ */
.advantages {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.advantage-item {
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    box-shadow: var(--shadow-lg);
}

.advantage-number {
    display: inline-block;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-size: 2rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.advantage-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.advantage-item p {
    color: var(--text-light);
    line-height: 1.8;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature-row {
    display: flex;
    align-items: flex-start;
    background-color: var(--bg-white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.feature-icon {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-right: 1rem;
    font-weight: bold;
    flex-shrink: 0;
}

.feature-row span:last-child {
    color: var(--text-dark);
    font-weight: 500;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects {
    padding: 6rem 0;
    background-color: var(--bg-white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.project-card {
    background-color: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-top: 4px solid var(--secondary-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    width: 100%;
    height: 200px;
    background-color: var(--bg-light);
    overflow: hidden;
}

.project-image svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-card h3 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin: 1.5rem 1.5rem 0.5rem;
}

.project-meta {
    display: flex;
    gap: 1.5rem;
    padding: 0 1.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
    flex-wrap: wrap;
}

.project-location,
.project-year {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.project-type {
    padding: 0.5rem 1.5rem 0 1.5rem;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.project-desc {
    padding: 0.8rem 1.5rem;
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

.project-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-light);
}

.detail-item {
    text-align: center;
}

.detail-item strong {
    display: block;
    color: var(--primary-color);
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
}

.detail-item {
    color: var(--text-dark);
    font-size: 0.85rem;
    font-weight: 500;
}

.projects-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    margin-top: 3rem;
}

.projects-cta p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

/* ============================================
   CONTACT & CTA SECTION
   ============================================ */
.contact-cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: white;
}

.contact-cta .section-title,
.contact-cta .section-subtitle {
    color: white;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-left {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--secondary-color);
}

.contact-item p {
    line-height: 1.8;
    opacity: 0.95;
    font-size: 0.95rem;
}

.contact-item a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: #fcd34d;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
}

.contact-form input,
.contact-form textarea {
    padding: 12px 15px;
    border: none;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.95rem;
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--text-dark);
    transition: all 0.3s ease;
    width: 100%;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-light);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.3);
    background-color: rgba(255, 255, 255, 1);
}

.contact-right {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.maps-container {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    min-height: 400px;
}

.maps-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.quick-contact-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.quick-contact-card h3 {
    color: white;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.quick-contact-card p {
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.quick-buttons {
    display: flex;
    gap: 1rem;
    flex-direction: column;
}

.btn-whatsapp,
.btn-phone {
    display: inline-block;
    padding: 12px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-whatsapp {
    background-color: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background-color: #20ba5a;
    transform: translateY(-2px);
}

.btn-phone {
    background-color: var(--secondary-color);
    color: white;
}

.btn-phone:hover {
    background-color: #d97706;
    transform: translateY(-2px);
}

/* ============================================
   FLOATING WHATSAPP BUTTON
   ============================================ */
.whatsapp-floating {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: white;
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    z-index: 999;
}

.whatsapp-floating:hover {
    background-color: #20ba5a;
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-floating svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.footer-section p {
    line-height: 1.7;
    opacity: 0.9;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
    opacity: 0.9;
}

.footer-section a:hover {
    color: var(--secondary-color);
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    opacity: 0.8;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        flex-direction: column;
        gap: 0;
        box-shadow: var(--shadow);
        padding: 1rem 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .nav-menu.active {
        max-height: 300px;
    }

    .nav-menu a {
        display: block;
        padding: 1rem 20px;
        border-bottom: 1px solid var(--border-color);
    }

    /* Hero Section */
    .hero {
        grid-template-columns: 1fr;
        padding: 3rem 0;
    }

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

    .hero-subheadline {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    /* Section Title */
    .section-title {
        font-size: 2rem;
    }

    /* Services Grid */
    .services-grid {
        grid-template-columns: 1fr;
    }

    /* About Section */
    .about-content {
        grid-template-columns: 1fr;
    }

    .vision-mission {
        grid-template-columns: 1fr;
    }

    .values-list {
        grid-template-columns: 1fr;
    }

    /* Advantages Grid */
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .features-list {
        grid-template-columns: 1fr;
    }

    /* Projects Grid */
    .projects-grid {
        grid-template-columns: 1fr;
    }

    /* Contact Section */
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .maps-container {
        min-height: 300px;
    }

    .project-details {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
    }

    /* General Padding */
    .services,
    .advantages,
    .projects,
    .contact-cta {
        padding: 3rem 0;
    }

    .hero-content,
    .hero-image {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    /* Typography */
    .hero-headline {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
    }

    /* Buttons */
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    /* Advantage Number */
    .advantage-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    /* Projects */
    .project-image {
        height: 200px;
    }

    .project-details {
        grid-template-columns: 1fr;
    }

    .detail-item {
        padding: 0.5rem 0;
    }

    /* Contact Section */
    .contact-item p {
        font-size: 0.9rem;
    }

    .quick-buttons {
        flex-direction: column;
    }

    .maps-container {
        min-height: 250px;
    }

    .whatsapp-floating {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-floating svg {
        width: 26px;
        height: 26px;
    }

    /* Footer */
    .footer-section h3,
    .footer-section h4 {
        font-size: 1rem;
    }
}

/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.service-card,
.advantage-item,
.project-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* ============================================
   SCROLL BEHAVIOR
   ============================================ */
html {
    scroll-behavior: smooth;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center {
    text-align: center;
}

.mt-2 {
    margin-top: 2rem;
}

.mb-2 {
    margin-bottom: 2rem;
}