/* Базови променливи за светла тема */
:root, [data-bs-theme="light"] {
    --primary-color: #0f2942; /* Deep Navy - солидно бизнес синьо */
    --primary-hover: #173d61;
    --hero-bg-gradient: radial-gradient(circle at top left, #ffffff 0%, #f1f5f9 100%);
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --navbar-border: transparent;
    --navbar-scrolled-border: #e2e8f0;
    --navbar-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --card-hover-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --contact-panel-bg: var(--primary-color);
}

/* Променливи за тъмна тема */
[data-bs-theme="dark"] {
    --primary-color: #3b82f6; /* По-светло синьо за акцент в тъмната тема, за да е четимо */
    --primary-hover: #60a5fa;
    --hero-bg-gradient: radial-gradient(circle at top left, #1e293b 0%, #0f172a 100%);
    --navbar-bg: rgba(15, 23, 42, 0.95);
    --navbar-border: transparent;
    --navbar-scrolled-border: #334155;
    --navbar-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --card-hover-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    --contact-panel-bg: #1e293b;
}

body {
    font-family: 'Inter', sans-serif;
    padding-top: 80px; 
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    letter-spacing: -0.02em;
}

.tracking-wide {
    letter-spacing: 0.05em;
}

.max-w-700 {
    max-width: 700px;
}

.text-primary, .brand-text {
    color: var(--primary-color) !important;
}

/* Навигация */
.custom-navbar {
    background-color: var(--navbar-bg);
    backdrop-filter: blur(12px);
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--navbar-border);
}

.custom-navbar.scrolled {
    box-shadow: var(--navbar-shadow);
    border-bottom: 1px solid var(--navbar-scrolled-border);
}

.custom-navbar .nav-link {
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    transition: color 0.2s ease;
}

.custom-navbar .nav-link:hover,
.custom-navbar .nav-link.active {
    color: var(--primary-color);
}

/* Бутони */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}

.btn-primary.custom-btn {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
}

.btn-primary.custom-btn:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

/* Theme Toggle Button */
.theme-toggle-btn {
    transition: transform 0.3s ease, background-color 0.3s ease;
}
.theme-toggle-btn:hover {
    transform: rotate(15deg);
}

/* Hero Section */
.hero-section {
    min-height: 85vh;
    background: var(--hero-bg-gradient);
    padding: 4rem 0;
}

.hero-title {
    line-height: 1.15;
}

.hero-image-wrapper {
    background-color: #cbd5e1;
    min-height: 500px;
    border: 1px solid rgba(128, 128, 128, 0.2);
}

.hero-image-wrapper img {
    object-fit: cover;
    height: 100%;
}

/* Анимация за елемента в Hero */
.animate-float {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* Карти за услуги */
.service-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-hover-shadow);
}

.contact-card-special {
    background-color: var(--primary-color);
}

/* Контакти */
.contact-info-panel {
    background-color: var(--contact-panel-bg);
}

.form-control:focus, .form-select:focus {
    box-shadow: 0 0 0 0.25rem rgba(15, 41, 66, 0.15);
    border-color: var(--primary-color) !important;
}

.hover-text-white:hover {
    color: #ffffff !important;
}

/* Карта филтър за тъмна/светла тема */
.map-container iframe {
    filter: grayscale(80%) contrast(1.2);
    transition: filter 0.3s ease;
}
[data-bs-theme="dark"] .map-container iframe {
    filter: grayscale(100%) invert(90%) contrast(1.2);
}

/* Footer */
.footer {
    border-top: 1px solid var(--navbar-scrolled-border);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    border-radius: 50%;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}