/* General Styles */
body {
    padding-top: 56px; /* Adjust for fixed navbar height */
    transition: background-color 0.3s ease, color 0.3s ease;
}

main {
    min-height: calc(100vh - 56px - 72px); /* Full height minus navbar and footer */
}

.navbar {
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.navbar-brand {
    letter-spacing: -0.5px;
}

.section-divider {
    margin-top: 3rem;
    margin-bottom: 3rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.accordion-button:focus {
    box-shadow: none;
    border-color: rgba(0,0,0,.125);
}

.accordion-button:not(.collapsed) {
    color: var(--bs-primary);
    background-color: var(--bs-primary-bg-subtle);
}

footer {
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Input and Button Styles */
#youtubeUrl {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

#convertBtn {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* Loader Style */
#loader .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Result Styles */
#result img {
    border: 1px solid #dee2e6;
}

/* Dark Mode Styles */
[data-bs-theme="dark"] {
    color-scheme: dark;
    --bs-body-color: var(--bs-gray-300);
    --bs-body-bg: var(--bs-gray-900);
    --bs-border-color: var(--bs-gray-700);
    --bs-emphasis-color: var(--bs-gray-100);
    --bs-secondary-bg: var(--bs-gray-800);
    --bs-tertiary-bg: #2b3035; /* Slightly lighter dark background */
    --bs-primary-bg-subtle: rgba(var(--bs-primary-rgb), 0.15);
    --bs-light-rgb: 222, 226, 230; /* Adjust light color for dark mode */
    --bs-dark-rgb: 33, 37, 41; /* Adjust dark color for dark mode */
}

[data-bs-theme="dark"] .navbar {
    background-color: var(--bs-gray-800) !important; /* Override light bg */
    border-bottom: 1px solid var(--bs-gray-700);
}

[data-bs-theme="dark"] .navbar-brand,
[data-bs-theme="dark"] .nav-link {
    color: var(--bs-gray-300);
}

[data-bs-theme="dark"] .nav-link:hover,
[data-bs-theme="dark"] .nav-link:focus {
    color: var(--bs-white);
}

[data-bs-theme="dark"] .nav-link.active {
    color: var(--bs-primary);
}

[data-bs-theme="dark"] .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .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%28255, 255, 255, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-bs-theme="dark"] .form-control {
    background-color: var(--bs-tertiary-bg);
    color: var(--bs-body-color);
    border-color: var(--bs-gray-700);
}

[data-bs-theme="dark"] .form-control::placeholder {
    color: var(--bs-gray-500);
}

[data-bs-theme="dark"] .form-control:focus {
     background-color: var(--bs-tertiary-bg);
     color: var(--bs-body-color);
     border-color: var(--bs-primary);
     box-shadow: 0 0 0 0.25rem rgba(var(--bs-primary-rgb), 0.25);
}

[data-bs-theme="dark"] .input-group-text {
    background-color: var(--bs-gray-700);
    border-color: var(--bs-gray-700);
    color: var(--bs-gray-300);
}

[data-bs-theme="dark"] .border {
    border-color: var(--bs-gray-700) !important;
}

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

[data-bs-theme="dark"] .accordion-item {
    background-color: var(--bs-secondary-bg);
    border-color: var(--bs-gray-700);
}

[data-bs-theme="dark"] .accordion-header {
     /* No specific change needed, inherits button style */
}

[data-bs-theme="dark"] .accordion-button {
    background-color: var(--bs-secondary-bg);
    color: var(--bs-gray-300);
}

[data-bs-theme="dark"] .accordion-button:not(.collapsed) {
    color: var(--bs-primary); /* Keep primary color for active */
    background-color: var(--bs-primary-bg-subtle); /* Use subtle primary bg */
}

[data-bs-theme="dark"] .accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23adb5bd'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

[data-bs-theme="dark"] .accordion-button:not(.collapsed)::after {
     background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230d6efd'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
     transform: rotate(-180deg);
}

[data-bs-theme="dark"] .accordion-body {
    color: var(--bs-gray-400);
}

[data-bs-theme="dark"] footer {
    background-color: #1c1e21 !important; /* Darker footer */
    color: var(--bs-gray-400);
}

[data-bs-theme="dark"] footer .text-white {
     color: var(--bs-gray-300) !important;
}

[data-bs-theme="dark"] hr {
    border-top-color: var(--bs-gray-700);
}

[data-bs-theme="dark"] #result img {
    border-color: var(--bs-gray-700);
}

/* Smooth Transitions */
.navbar, body, footer, .form-control, .btn, .accordion-button, .p-3.border.rounded {
    transition: all 0.3s ease-in-out;
}