:root {
    --bg-body: #f8f9fa;
    --bg-surface: #ffffff;
    --text-main: #212529;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --nav-link: #6c757d;
    --nav-link-hover: #0d6efd;
    --durum-bg: rgba(13, 110, 253, 0.08);
    --durum-border: rgba(13, 110, 253, 0.2);
    --durum-text: #0d6efd;
    --durum-hover-bg: #0d6efd;
    --durum-hover-text: #ffffff;
    --header-info-bg: #0d233a;
    --header-info-text: #ffffff;
}

[data-theme="dark"] {
    --bg-body: #121212;
    --bg-surface: #1e1e1e;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --border-color: #333333;
    --nav-link: #a0a0a0;
    --nav-link-hover: #6ea8fe;
    --durum-bg: rgba(110, 168, 254, 0.1);
    --durum-border: rgba(110, 168, 254, 0.2);
    --durum-text: #6ea8fe;
    --durum-hover-bg: #6ea8fe;
    --durum-hover-text: #121212;
    --header-info-bg: #081320;
    --header-info-text: #e0e0e0;
}

@font-face {
    font-family: 'Euclid Circular B';
    src: local('Euclid Circular B'), local('EuclidCircularB-Regular');
}

body, h1, h2, h3, h4, h5, h6, p, a, span, div, input, button {
    font-family: 'Euclid Circular B', sans-serif !important;
    background-color: var(--bg-body);
    color: var(--text-main);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.card, 
.btn, 
.form-control, 
.form-select, 
.alert, 
.badge, 
.modal-content, 
.dropdown-menu,
.nav-pills .nav-link,
header,
footer,
.box-structure,
.btn-durum,
.theme-toggle,
.header-info-bar {
    border-radius: 5px !important;
    box-shadow: none !important;
}

.header-info-bar {
    background-color: var(--header-info-bg) !important;
    color: var(--header-info-text) !important;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.3px;
    border-bottom: 1px solid var(--border-color);
}

.header-info-bar span,
.header-info-bar i {
    background-color: transparent !important;
    color: var(--header-info-text) !important;
}

.navbar {
    box-shadow: none !important;
    background-color: var(--bg-surface) !important;
    border-bottom: 1px solid var(--border-color);
}

.btn:focus, .form-control:focus, .form-select:focus, .theme-toggle:focus {
    box-shadow: none !important;
    border-color: var(--nav-link-hover) !important;
}

.topbar {
    background-color: var(--bg-body);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
}

.ticker-wrapper {
    height: 24px;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
}

.ticker-item {
    position: absolute;
    left: 0;
    width: 100%;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.5s ease-in-out;
    pointer-events: none;
    background-color: transparent;
}

.ticker-item.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.ticker-item span.text-muted {
    color: var(--text-muted) !important;
    background-color: transparent;
}

.ticker-item span.fw-bold {
    background-color: transparent;
}

.topbar-right a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    background-color: transparent;
}

.topbar-right a:hover {
    color: var(--nav-link-hover);
}

.topbar-separator {
    color: var(--border-color);
    margin: 0 12px;
    background-color: transparent;
}

.main-nav .nav-link {
    color: var(--nav-link) !important;
    font-weight: 500;
    transition: color 0.3s ease;
    background-color: transparent;
}

.main-nav .nav-link:hover {
    color: var(--nav-link-hover) !important;
}

.btn-durum {
    position: relative;
    background-color: var(--durum-bg);
    color: var(--durum-text);
    border: 1px solid var(--durum-border);
    overflow: hidden;
    transition: color 0.4s ease, border-color 0.4s ease;
    z-index: 1;
    padding: 10px 24px;
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    font-weight: 600;
}

.btn-durum::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--durum-hover-bg);
    transition: left 0.4s ease-in-out;
    z-index: -1;
}

.btn-durum:hover {
    color: var(--durum-hover-text) !important;
    border-color: var(--durum-hover-bg);
}

.btn-durum:hover::before {
    left: 0;
}

@keyframes pulse-icon-anim {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

.pulse-icon {
    animation: pulse-icon-anim 1.5s infinite ease-in-out;
    margin-right: 10px;
    background-color: transparent;
}

.pulse-icon::before {
    background-color: transparent;
}

.theme-toggle {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--nav-link-hover);
    border-color: var(--nav-link-hover);
}

.navbar-brand img {
    background-color: transparent;
}

.navbar-toggler {
    border-color: var(--border-color);
}

.navbar-toggler-icon {
    filter: invert(var(--theme-invert, 0));
}

[data-theme="dark"] {
    --theme-invert: 1;
}