/* Minimal custom styles, trying to use Bootstrap utilities where possible. */

:root {
    --bs-primary-rgb: 79, 172, 254;
    --bs-secondary-rgb: 108, 117, 125;
    --bs-body-font-family: 'Ubuntu', sans-serif;
}

body {
    background-color: var(--bs-tertiary-bg);
}

.app-header {
    background-color: rgba(var(--bs-dark-rgb), .85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.app-header .navbar-brand,
.app-header .nav-link,
.app-header #settings-controls .btn,
.app-header .navbar-toggler {
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.2);
}
.app-header .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.app-header .nav-link:hover,
.app-header #settings-controls .btn:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.app-header .nav-link.active {
    color: #fff;
    font-weight: bold;
}
[data-bs-theme="dark"] .app-header .nav-link {
    color: rgba(255, 255, 255, 0.85);
}

/* Contrast fix for nav-pills */
.nav-pills .nav-link {
    color: var(--bs-body-color);
}
.nav-pills .nav-link.active {
    color: #fff;
}

/* main card container */
.main-container {
    border: 1px solid var(--bs-border-color-translucent);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.05);
}
[data-bs-theme="dark"] .main-container {
     box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.2);
}

/* results cards */
.cycle-card {
    transition: all 0.2s ease-in-out;
    background-color: var(--bs-light-bg-subtle);
    border: 1px solid var(--bs-border-color);
}

.cycle-card.optimal {
    border-color: var(--bs-primary);
    border-width: 2px;
}

[data-bs-theme="dark"] .cycle-card {
     background-color: var(--bs-dark-bg-subtle);
}

.cycle-card:hover {
    transform: scale(1.02);
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,.1)!important;
}

.cycle-time {
    font-weight: 500;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.5s ease-out forwards; }

/* Toast notifications */
.toast-container { z-index: 1080; }

/* Mobile fixes */
@media (max-width: 600px) {
    .navbar-collapse {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }
    .main-container { margin: 0.5rem; }
    .card-body { padding: 1.5rem !important; }
}