/* ==========================================================================
   UI Components
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) var(--space-32);
    font-family: var(--font-body);
    font-weight: var(--weight-medium);
    font-size: var(--text-base);
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--duration-base) var(--ease-out);
    text-transform: uppercase;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-accent-primary);
    color: var(--color-bg-base);
    box-shadow: var(--shadow-md);
}

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

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-outline:hover {
    background-color: var(--color-bg-surface-hover);
    border-color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
    background-color: var(--color-bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-32);
    border: 1px solid var(--color-border);
    transition: all var(--duration-slow) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    background-color: var(--color-bg-surface-hover);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background-color: var(--color-bg-base);
    color: var(--color-accent-primary);
    margin-bottom: var(--space-24);
    font-size: 1.5rem;
    border: 1px solid var(--color-border);
}

.card-title {
    font-size: var(--text-h4);
    margin-bottom: var(--space-12);
    color: var(--color-text-primary);
}

.card-text {
    color: var(--color-text-secondary);
    font-size: var(--text-base);
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
.form-group {
    margin-bottom: var(--space-24);
}

.form-label {
    display: block;
    margin-bottom: var(--space-8);
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-control {
    width: 100%;
    padding: var(--space-16);
    background-color: var(--color-bg-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    transition: border-color var(--duration-base) var(--ease-out);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

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

/* --------------------------------------------------------------------------
   Navigation & App Bars
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-24) 0;
    transition: all var(--duration-base) var(--ease-out);
    /* Glass blur effect */
    background: rgba(10, 11, 13, 0.3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar.scrolled {
    background-color: rgba(10, 11, 13, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--space-16) 0;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--section-padding-x);
}

.brand {
    font-family: var(--font-heading);
    font-size: var(--text-h4);
    font-weight: var(--weight-regular);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.brand span {
    color: var(--color-accent-primary);
}

.nav-links {
    display: flex;
    gap: var(--space-32);
    align-items: center;
}

.nav-item {
    font-size: var(--text-small);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-secondary);
    font-weight: var(--weight-medium);
    position: relative;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent-primary);
    transition: width var(--duration-base) var(--ease-out);
}

.nav-item:hover {
    color: var(--color-text-primary);
}

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

/* --------------------------------------------------------------------------
   Mobile Menu
   -------------------------------------------------------------------------- */
.mobile-menu-btn {
    font-size: 2rem;
    color: var(--color-text-primary);
    cursor: pointer;
    position: relative;
    z-index: 1001;
    display: flex;
    align-items: center;
}

@media (max-width: 767px) {
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(5, 6, 7, 0.98);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-48);
        z-index: 999;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--duration-base) var(--ease-out);
    }

    .nav-links.active {
        opacity: 1;
        pointer-events: all;
    }

    .nav-links .nav-item {
        font-size: var(--text-h4);
    }
    
    .nav-links .btn {
        font-size: 1.25rem;
        padding: var(--space-16) var(--space-32);
    }
}

/* --------------------------------------------------------------------------
   Logo Carousel
   -------------------------------------------------------------------------- */
.logo-carousel-section {
    padding: var(--space-48) 0;
    border-top: 1px solid var(--color-border);
    background-color: rgba(255, 255, 255, 0.205);
    /* Very subtle white for dark glass */
    backdrop-filter: blur(12px);
    /* Glass Blur Effect */
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
    position: relative;
    width: 100%;
}

.logo-carousel-track {
    display: flex;
    gap: var(--space-64);
    width: max-content;
    animation: scroll-carousel 30s linear infinite;
}

.logo-carousel-group {
    display: flex;
    gap: var(--space-64);
    align-items: center;
}

.logo-item {
    flex-shrink: 0;
    width: 180px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.5;
    filter: grayscale(100%);
    transition: opacity var(--duration-base) var(--ease-out);
}

.logo-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

@keyframes scroll-carousel {
    to {
        transform: translateX(calc(-50% - (var(--space-64) / 2)));
    }
}

/* --------------------------------------------------------------------------
   Logo & WhatsApp Button
   -------------------------------------------------------------------------- */
.nav-logo {
    height: 48px;
    width: auto;
    transition: height var(--duration-base) var(--ease-out);
}

@media (max-width: 768px) {
    .navbar {
        padding: var(--space-12) 0;
    }
    .navbar.scrolled {
        padding: var(--space-8) 0;
    }
    .nav-logo {
        height: 32px;
    }
}

.whatsapp-btn {
    position: fixed;
    bottom: var(--space-24);
    right: var(--space-24);
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 32px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
    color: white;
}

@media (max-width: 768px) {
    .whatsapp-btn {
        width: 50px;
        height: 50px;
        font-size: 28px;
        bottom: var(--space-16);
        right: var(--space-16);
    }
}

/* --------------------------------------------------------------------------
   Scroll Indicators
   -------------------------------------------------------------------------- */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-48);
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    text-align: center;
}

.scroll-indicator a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-12);
    transition: color 0.3s ease;
}

.scroll-indicator a:hover {
    color: white;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    position: relative;
    transition: border-color 0.3s ease;
}

.scroll-indicator a:hover .mouse {
    border-color: white;
}

.wheel {
    width: 2px;
    height: 6px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 1.5s infinite;
    transition: background 0.3s ease;
}

.scroll-indicator a:hover .wheel {
    background: white;
}

@keyframes scroll-wheel {
    0% { transform: translate(-50%, 0); opacity: 1; }
    100% { transform: translate(-50%, 15px); opacity: 0; }
}

.scroll-indicator-mobile {
    position: absolute;
    bottom: var(--space-32);
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.scroll-indicator-mobile a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 2rem;
    display: block;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}