/* Variables CSS */
:root {
    /* Colores principales */
    --primary-color: #691D13;
    --primary-dark: #4f140e;
    --primary-light: #8B4513;
    --secondary-color: #FFD700;
    --secondary-dark: #E8C600;
    --secondary-light: #FFE44D;
    
    /* Colores de texto */
    --text-light: #ffffff;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-muted: #888888;
    
    /* Colores de fondo */
    --bg-light: #f8f8f8;
    --bg-dark: #1a1a1a;
    --bg-overlay: rgba(0, 0, 0, 0.6);
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Bordes */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Tipografía */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    
    /* Breakpoints */
    --mobile: 480px;
    --tablet: 768px;
    --laptop: 1024px;
    --desktop: 1200px;
    
    /* Contenedores */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
}

/* Reset y Estilos Base */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.5;
}

/* Utilidades */
.container {
    width: 90%;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }
.gap-4 { gap: var(--spacing-xl); }

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(105, 29, 19, 0.95);
    padding: 15px 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(105, 29, 19, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
}

.nav-container {
    width: 85%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo:hover .logo-img {
    transform: scale(1.05);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin: 0 10px;
}

.nav-links li a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    padding: 10px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

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

.nav-links li a:hover::after {
    width: 100%;
}

.btn-nav {
    background: var(--secondary-color);
    color: var(--primary-color);
    padding: 0.75rem 2rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
    display: inline-block;
    min-width: 120px;
}

.btn-nav:hover {
    background: var(--text-light);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.lang-selector {
    position: relative;
    background: transparent;
    color: var(--text-light);
    padding: 0.6rem 2rem 0.6rem 1rem;
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23FFD700' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    min-width: 120px;
    text-align: left;
    transition: all 0.3s ease;
}

.lang-selector:hover {
    background-color: rgba(255, 215, 0, 0.1);
    border-color: var(--secondary-light);
    transform: translateY(-1px);
}

.lang-selector:focus {
    outline: none;
    border-color: var(--secondary-light);
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.2);
}

.lang-selector option {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

/* Estilos del menú hamburguesa */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    z-index: 1002;
    background: none;
    border: none;
    padding: 0.5rem;
    position: fixed;
    right: 1.5rem;
    top: 1.5rem;
}

/* Media queries para responsividad */
@media (max-width: 768px) {
    .navbar {
        background: rgba(105, 29, 19, 0.98);
        padding: 10px 0;
    }

    .navbar.scrolled {
        background: rgba(105, 29, 19, 0.98);
    }

    .nav-links {
        display: none;
    }

    .nav-right {
        gap: 10px;
    }

    .lang-selector {
        min-width: 100px;
        padding: 0.5rem 1.5rem 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    .nav-container {
        width: 90%;
    }

    .logo-img {
        height: 40px;
    }
}

@media (max-width: 1024px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: #691D13;
        flex-direction: column;
        padding: 20px 0;
        text-align: center;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        margin: 10px 0;
        width: 100%;
        justify-content: center;
    }

    .nav-links li a {
        padding: 10px 20px;
        display: block;
        width: 100%;
    }

    .lang-selector {
        margin: 10px 0;
        width: 80%;
        max-width: 200px;
    }

    .btn-nav {
        margin: 10px 0;
        width: 80%;
        max-width: 200px;
    }
}

@media (max-width: 768px) {
    .logo-img {
        height: 40px;
    }

    .nav-links {
        top: 60px;
    }

    .nav-links li a {
        font-size: 16px;
    }

    .lang-selector {
        width: 100%;
        max-width: 200px;
        margin: 0.5rem auto;
        text-align: center;
        padding: 0.75rem 2rem 0.75rem 1rem;
        background-color: transparent;
        border-color: var(--secondary-color);
    }

    .btn-nav {
        width: 100%;
        padding: 1rem;
        font-size: 1rem;
        min-width: unset;
    }
}

/* HEADER */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    position: relative;
    overflow: hidden;
    background: url('../images/logistica-bg.jpg') no-repeat center center/cover;
    padding-top: 80px;
    margin: 0;
}

.overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(105, 29, 19, 0.7);
    top: 0;
    left: 0;
}

.hero-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
    gap: 4rem;
}

.hero-text {
    width: 50%;
}

.hero-text h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #FFD700;
}

.hero-text h1 {
    font-size: 52px;
    font-weight: bold;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-text p {
    font-size: 20px;
    margin-bottom: 10px;
    opacity: 0.9;
    max-width: 600px;
    line-height: 1.5;
}

.hero-text .note {
    font-size: 18px;
    font-style: italic;
    color: #FFD700;
    margin-bottom: 25px;
}

.hero-text .btn {
    display: inline-block;
    background: #FFD700;
    color: #691D13;
    padding: 16px 36px;
    font-size: 20px;
    font-weight: bold;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s, transform 0.2s;
}

.hero-text .btn:hover {
    background: white;
    color: #691D13;
    transform: scale(1.05);
}

.hero-form {
    width: 45%;
    background: var(--text-light);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.15);
}

.hero-form h3 {
    color: var(--primary-color);
    text-align: center;
    font-size: var(--h3-size);
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group input {
    width: 50%;
}

.hero-form input,
.hero-form select,
.hero-form textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: var(--small-size);
    background: #f9f9f9;
    color: var(--text-dark);
    transition: border var(--transition);
    box-sizing: border-box;
}

.hero-form input:focus,
.hero-form select:focus,
.hero-form textarea:focus {
    border: 1px solid var(--primary-color);
    outline: none;
    background: #fff;
}

.hero-form textarea {
    resize: none;
    height: 100px;
}

.hero-form button {
    width: 100%;
    padding: 0.875rem;
    background: var(--primary-color);
    color: var(--text-light);
    font-size: var(--small-size);
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background var(--transition);
}

.hero-form button:hover {
    background: #4f140e;
}

@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }

    .hero-text {
        width: 100%;
        margin-bottom: 2rem;
    }

    .hero-text p {
        margin: 0 auto 1rem;
    }

    .hero-form {
        width: 100%;
        max-width: 500px;
        margin: 0 auto;
        padding: 1.5rem;
    }

    .form-group {
        flex-direction: column;
        gap: 0.75rem;
    }

    .form-group input {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 60px 0 2rem;
        margin: 0;
    }

    .hero-content {
        width: 95%;
        padding: 1rem 0;
    }

    .hero-form {
        padding: 1rem;
        margin: 0;
        width: 100%;
        max-width: none;
    }

    .hero-form h3 {
        font-size: var(--h3-size);
        margin-bottom: 1rem;
    }

    .hero-form input,
    .hero-form select,
    .hero-form textarea {
        padding: 0.625rem;
        margin-bottom: 0.625rem;
        font-size: var(--small-size);
    }

    .hero-form textarea {
        height: 80px;
    }

    .hero-form button {
        padding: 0.75rem;
        font-size: var(--small-size);
    }
}

/* SECCIÓN EFICIENCIA */
.efficiency {
    background: #E8DCD2;
    padding: 100px 0;
    text-align: center;
    color: #691D13;
}

.section-title {
    font-size: 50px;
    font-weight: bold;
    margin-bottom: 40px;
}

.efficiency-image {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
}

.efficiency-image img {
    width: 50%;
    max-width: 600px;
    height: auto;
}

.efficiency-metrics {
    display: flex;
    justify-content: space-around;
    max-width: 900px;
    margin: auto;
    gap: 40px;
}

.metric {
    text-align: center;
    flex: 1;
    min-width: 200px;
}

.metric h3 {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 5px;
    text-transform: uppercase;
}

.percent {
    font-size: 55px;
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
}

.red {
    color: #B22222;
}

.yellow {
    color: #FFD700;
}

.btn {
    display: inline-block;
    background: #FFD700;
    color: #691D13;
    padding: 16px 36px;
    font-size: 22px;
    font-weight: bold;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s, transform 0.2s;
    margin-top: 50px;
}

.btn:hover {
    background: #E8C600;
    transform: scale(1.05);
}

@media (max-width: 1024px) {
    .efficiency-metrics {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .section-title {
        font-size: 45px;
    }

    .percent {
        font-size: 50px;
    }

    .metric h3 {
        font-size: 20px;
    }

    .metric p {
        font-size: 18px;
    }

    .btn {
        font-size: 20px;
        padding: 14px 30px;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 40px;
    }

    .percent {
        font-size: 45px;
    }

    .metric h3 {
        font-size: 18px;
    }

    .metric p {
        font-size: 16px;
    }

    .btn {
        font-size: 18px;
        padding: 12px 28px;
    }
}

/* SECCIÓN PROPUESTAS */
.proposals {
    background: #f5f5f5;
    padding: 60px 0;
    text-align: center;
}

.section-title {
    font-size: 28px;
    color: #691D13;
    font-weight: bold;
    margin-bottom: 10px;
}

.section-subtitle {
    font-size: 18px;
    color: #555;
    margin-bottom: 30px;
}

.proposal-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    width: 85%;
    margin: auto;
}

.proposal-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.proposal-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.proposal-content {
    padding: 15px;
}

.proposal-content h3 {
    font-size: 20px;
    color: #691D13;
    margin-bottom: 10px;
}

.proposal-content p {
    font-size: 16px;
    color: #666;
}

.proposal-card:hover {
    transform: scale(1.05);
    box-shadow: 0px 6px 15px rgba(0, 0, 0, 0.2);
}

@media (max-width: 1024px) {
    .proposal-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .proposal-grid {
        grid-template-columns: 1fr;
    }
}

/* SECCIÓN DISTRIBUCIÓN */
.distribution {
    background: url('../images/fondo2.jpg') no-repeat center center/cover;
    position: relative;
    padding: 120px 0;
    color: white;
}

.distribution::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.distribution-content {
    position: relative;
    z-index: 2;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.text-content {
    width: 100%;
}

.text-content h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    font-weight: bold;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.text-content p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.image-content {
    width: 100%;
    height: 100%;
}

.image-content img {
    width: 100%;
    height: auto;
    min-height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 1024px) {
    .distribution {
        padding: 80px 0;
    }

    .distribution-content {
        width: 95%;
        gap: 3rem;
    }

    .text-content h2 {
        font-size: 2rem;
    }

    .text-content p {
        font-size: 1.1rem;
    }

    .image-content img {
        min-height: 350px;
    }
}

@media (max-width: 768px) {
    .distribution {
        padding: 60px 0;
    }

    .distribution-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .text-content {
        text-align: center;
    }

    .text-content h2 {
        font-size: 1.8rem;
    }

    .image-content img {
        min-height: 300px;
    }
}

/* SECCIÓN SOCIOS */
.partners {
    background: #dbcdc6;
    padding: 60px 0;
    text-align: center;
}

.section-title {
    font-size: 28px;
    color: #691D13;
    font-weight: bold;
    margin-bottom: 30px;
}

.partner-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    width: 85%;
    margin: auto;
}

.partner-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #691D13;
}

.partner-card:hover {
    transform: scale(1.05);
    box-shadow: 0px 6px 15px rgba(0, 0, 0, 0.2);
}

.stars {
    font-size: 20px;
    color: #FFD700;
    margin-bottom: 10px;
}

.partner-card h3 {
    font-size: 20px;
    color: #691D13;
    margin-bottom: 10px;
}

.partner-card p {
    font-size: 16px;
    color: #666;
}

@media (max-width: 1024px) {
    .partner-grid {
        grid-template-columns: 1fr;
    }
}

/* FOOTER */
#footer {
    background-color: #4f140e;
    color: white;
    padding: 60px 5%;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: auto;
    gap: 50px;
}

.footer-subscribe {
    flex: 1;
    text-align: left;
    min-width: 300px;
}

.footer-subscribe h3 {
    font-size: 1.8em;
    margin-bottom: 10px;
}

.footer-subscribe p {
    font-size: 1.2em;
    margin-bottom: 15px;
}

#subscribe-form {
    display: flex;
    align-items: center;
    gap: 10px;
}

#email-subscribe {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
}

#subscribe-form button {
    background: #FFB5A7;
    color: white;
    border: none;
    padding: 12px 18px;
    font-size: 1.1em;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
}

#subscribe-form button:hover {
    background: #E5989B;
}

.footer-contact {
    flex: 1;
    text-align: left;
    min-width: 300px;
}

.footer-contact h3 {
    font-size: 1.8em;
    margin-bottom: 10px;
}

.footer-contact p {
    font-size: 1.2em;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact i {
    color: #FFB5A7;
    font-size: 1.3em;
}

.footer-bottom {
    text-align: center;
    margin-top: 40px;
    font-size: 1em;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    padding-top: 20px;
}

@media (max-width: 900px) {
    #footer {
        padding: 40px 20px;
    }

    .footer-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 30px;
    }

    .footer-subscribe, 
    .footer-contact {
        text-align: center;
        width: 100%;
        max-width: 500px;
        margin: 0 auto;
    }

    #subscribe-form {
        flex-direction: column;
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    #email-subscribe {
        width: 100%;
    }

    .footer-contact p {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    #footer {
        padding: 30px 15px;
    }

    .footer-subscribe h3,
    .footer-contact h3 {
        font-size: 1.5em;
    }

    .footer-subscribe p,
    .footer-contact p {
        font-size: 1em;
    }

    #subscribe-form button {
        width: 100%;
        padding: 10px;
    }
}

/* Notificaciones */
.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 15px 25px;
    border-radius: var(--border-radius-md);
    background: var(--text-light);
    color: var(--text-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    z-index: 1000;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification.success {
    background: #4CAF50;
    color: var(--text-light);
}

.notification.error {
    background: #f44336;
    color: var(--text-light);
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Clases de animación */
.animate {
    animation: fadeIn 0.6s ease forwards;
}

.animate-slide {
    animation: slideIn 0.6s ease forwards;
}

.animate-scale {
    animation: scaleIn 0.6s ease forwards;
}

/* Navbar Scroll Effects */
.navbar {
    transition: transform var(--transition-normal), background var(--transition-normal);
}

.navbar.scroll-down {
    transform: translateY(-100%);
}

.navbar.scroll-up {
    transform: translateY(0);
    background: var(--primary-color);
}

/* Form Validation Styles */
.error {
    border-color: #f44336 !important;
}

.error-message {
    color: #f44336;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--text-light);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}