/* ============================================
   KPS Logistics - Corporate Stylesheet
   ============================================ */

/* --- Variables & Reset --- */
:root {
    --navy: #0a1628;
    --navy-medium: #132a4a;
    --navy-light: #1b3a5c;
    --blue-accent: #1e5a96;
    --blue-highlight: #2980b9;
    --gray-100: #f7f8fa;
    --gray-200: #e8ecf1;
    --gray-300: #cdd4de;
    --gray-500: #6b7a8d;
    --gray-700: #3d4f63;
    --white: #ffffff;
    --text-primary: #1a2332;
    --text-secondary: #4a5568;
    --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.06);
    --shadow-md: 0 8px 24px rgba(10, 22, 40, 0.08);
    --shadow-lg: 0 16px 48px rgba(10, 22, 40, 0.12);
    --radius: 0.5rem;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

img {
    max-width: 100%;
    display: block;
}

ul {
    list-style: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

/* --- Utility --- */
.container {
    width: min(1200px, 92%);
    margin: 0 auto;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--blue-accent);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--navy);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 640px;
    line-height: 1.7;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}

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

.btn-primary:hover {
    background: var(--blue-highlight);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(30, 90, 150, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.btn-dark {
    background: var(--navy);
    color: var(--white);
}

.btn-dark:hover {
    background: var(--navy-medium);
    transform: translateY(-1px);
}

.btn-whatsapp {
    background: #25d366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #1fb855;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.3);
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo-mark {
    width: 38px;
    height: 38px;
    background: var(--navy);
    border-radius: 6px;
    display: grid;
    place-items: center;
    color: var(--white);
    font-weight: 800;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.logo-text {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--navy);
}

.logo-text span {
    font-weight: 400;
    color: var(--gray-500);
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.main-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: color var(--transition);
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue-accent);
    transition: width var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--navy);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.header-cta {
    padding: 0.65rem 1.4rem;
    font-size: 0.85rem;
}

.menu-toggle {
    display: none;
    border: none;
    background: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    position: relative;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--navy);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: all var(--transition);
}

.menu-toggle span {
    top: 50%;
    transform: translate(-50%, -50%);
}

.menu-toggle span::before {
    content: '';
    top: -7px;
    left: 0;
    transform: none;
}

.menu-toggle span::after {
    content: '';
    top: 7px;
    left: 0;
    transform: none;
}

.menu-toggle.open span {
    background: transparent;
}

.menu-toggle.open span::before {
    top: 0;
    transform: rotate(45deg);
}

.menu-toggle.open span::after {
    top: 0;
    transform: rotate(-45deg);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(160deg, rgba(10, 22, 40, 0.88) 0%, rgba(19, 42, 74, 0.78) 50%, rgba(27, 58, 92, 0.7) 100%),
        url('https://images.unsplash.com/photo-1601584115197-04ecc0da31d7?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 10rem 0 6rem;
    max-width: 700px;
}

.hero-content h1 {
    font-size: clamp(2.8rem, 6vw, 4rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.05;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.hero-content p {
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    color: rgba(255, 255, 255, 0.85);
    font-weight: 300;
    margin-bottom: 2.5rem;
    max-width: 520px;
}

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

.hero-stats {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 3rem;
    margin-top: 4rem;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat {
    text-align: left;
}

.hero-stat strong {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
}

.hero-stat span {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
}

/* --- Servicios --- */
.servicios {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: var(--white);
}

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

.servicios-header .section-desc {
    margin: 0 auto;
}

.servicios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

.servicio-card {
    border-radius: 0.75rem;
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
}

.servicio-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
    transform: translateY(-4px);
}

.servicio-img {
    height: 240px;
    overflow: hidden;
}

.servicio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.servicio-card:hover .servicio-img img {
    transform: scale(1.03);
}

.servicio-body {
    padding: 2rem;
}

.servicio-body h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.75rem;
}

.servicio-body > p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.servicio-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.servicio-feature {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

.servicio-feature svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    color: var(--blue-accent);
}

/* --- Flota --- */
.flota {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: var(--gray-100);
}

.flota-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.flota-header .section-desc {
    margin: 0 auto;
}

.flota-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.flota-card {
    background: var(--white);
    border-radius: 0.75rem;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
}

.flota-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.flota-card-img {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.flota-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.flota-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--navy);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.4rem 0.9rem;
    border-radius: 4px;
}

.flota-card-body {
    padding: 1.75rem;
}

.flota-card-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 1.25rem;
}

.flota-specs {
    display: grid;
    gap: 0.6rem;
}

.flota-spec {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.flota-spec svg {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--blue-accent);
}

/* --- Licitaciones --- */
.licitaciones {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: var(--navy);
    color: var(--white);
}

.licitaciones-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.licitaciones .section-label {
    color: rgba(255, 255, 255, 0.5);
}

.licitaciones .section-title {
    color: var(--white);
}

.licitaciones .section-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
}

.licitaciones-list {
    display: grid;
    gap: 1.25rem;
}

.licitaciones-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all var(--transition);
}

.licitaciones-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
}

.licitaciones-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(30, 90, 150, 0.3);
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.licitaciones-icon svg {
    width: 20px;
    height: 20px;
    color: var(--blue-highlight);
}

.licitaciones-item h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.licitaciones-item p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.5;
}

.licitaciones-visual {
    position: relative;
    border-radius: 0.75rem;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.licitaciones-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.licitaciones-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(10, 22, 40, 0.4));
}

/* --- Sobre KPS --- */
.about {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: var(--white);
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-card {
    background: var(--gray-100);
    border-radius: 0.75rem;
    padding: 2.5rem;
    border: 1px solid var(--gray-200);
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.5rem;
}

.about-card .about-tagline {
    font-size: 0.95rem;
    color: var(--blue-accent);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.about-divisions {
    display: grid;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.about-division {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
}

.about-division.active {
    border-color: var(--blue-accent);
    background: rgba(30, 90, 150, 0.04);
}

.about-division-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-300);
    flex-shrink: 0;
}

.about-division.active .about-division-dot {
    background: var(--blue-accent);
}

.about-division span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.about-division small {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-left: auto;
}

.about-text .section-desc {
    margin-bottom: 1.5rem;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-top: 2rem;
}

.about-highlight {
    padding: 1.25rem;
    background: var(--gray-100);
    border-radius: var(--radius);
}

.about-highlight strong {
    display: block;
    font-size: 1.5rem;
    color: var(--navy);
    margin-bottom: 0.25rem;
}

.about-highlight span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* --- Contacto --- */
.contacto {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: var(--gray-100);
}

.contacto-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.contacto-header .section-desc {
    margin: 0 auto;
}

.contacto-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 2.5rem;
    align-items: start;
}

.contacto-form {
    background: var(--white);
    border-radius: 0.75rem;
    padding: 2.5rem;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--navy);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.8rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    background: var(--gray-100);
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: all var(--transition);
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-accent);
    box-shadow: 0 0 0 3px rgba(30, 90, 150, 0.1);
    background: var(--white);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.contacto-sidebar {
    display: grid;
    gap: 1.5rem;
}

.contacto-info-card {
    background: var(--white);
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid var(--gray-200);
}

.contacto-info-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 1.25rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    color: var(--blue-accent);
    margin-top: 2px;
}

.info-item strong {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.info-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* --- Footer --- */
.site-footer {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 0 1.5rem;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-mark {
    background: rgba(255, 255, 255, 0.1);
}

.footer-brand p {
    font-size: 0.88rem;
    margin-top: 1rem;
    max-width: 320px;
    line-height: 1.6;
}

.footer-col h5 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.footer-col a {
    display: block;
    font-size: 0.88rem;
    padding: 0.3rem 0;
    transition: color var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    font-size: 0.82rem;
}

.footer-bottom a {
    transition: color var(--transition);
}

.footer-bottom a:hover {
    color: var(--white);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .servicios-grid {
        gap: 2rem;
    }

    .licitaciones-inner,
    .about-inner {
        gap: 3rem;
    }
}

@media (max-width: 900px) {
    .menu-toggle {
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(340px, 85vw);
        height: 100vh;
        background: var(--white);
        box-shadow: -8px 0 40px rgba(10, 22, 40, 0.15);
        padding: 5rem 2rem 2rem;
        transition: right 0.35s ease;
        z-index: 999;
    }

    .main-nav.open {
        right: 0;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .main-nav a {
        font-size: 1.05rem;
    }

    .header-cta {
        display: none;
    }

    .hero-stats {
        gap: 2rem;
    }

    .servicios-grid,
    .flota-grid {
        grid-template-columns: 1fr;
    }

    .licitaciones-inner,
    .about-inner {
        grid-template-columns: 1fr;
    }

    .licitaciones-visual {
        order: -1;
        max-height: 300px;
    }

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

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    .hero-content {
        padding: 8rem 0 4rem;
    }

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

    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

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

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

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}