/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header-inner {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: none;
}

.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-primary);
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 10px 30px var(--shadow);
    gap: 1.5rem;
    z-index: 999;
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
        gap: 2rem;
    }

    .nav-menu.active {
        position: static;
        flex-direction: row;
        padding: 0;
        border: none;
        box-shadow: none;
        width: auto;
    }
}

.nav-link {
    font-weight: 400;
    color: var(--text-primary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-btn);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: var(--transition);
}

.theme-toggle:hover {
    background-color: var(--bg-secondary);
}

.theme-toggle .sun {
    display: block;
}

.theme-toggle .moon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon {
    display: block;
}

/* Cards */
.card {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-card);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px var(--shadow);
    border-color: var(--primary-color);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-btn);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

/* Toast */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 2000;
}

.toast {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: var(--radius-btn);
    box-shadow: 0 10px 20px var(--shadow);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
}

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

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    padding: 80px 0 20px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    margin-bottom: 60px;
}

.footer-section h4 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
}

/* Mobile Menu Trigger */
.menu-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-primary);
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }
}