/* Catppuccin Mocha Palette */
:root {
    --ctp-base: #1e1e2e;
    --ctp-mantle: #181825;
    --ctp-crust: #11111b;
    --ctp-surface0: #313244;
    --ctp-surface1: #45475a;
    --ctp-surface2: #585b70;
    --ctp-overlay0: #6c7086;
    --ctp-overlay1: #7f849c;
    --ctp-overlay2: #9399b2;
    --ctp-subtext0: #a6adc8;
    --ctp-subtext1: #bac2de;
    --ctp-text: #cdd6f4;
    --ctp-rosewater: #f5e0dc;
    --ctp-flamingo: #f2cdcd;
    --ctp-pink: #f5c2e7;
    --ctp-mauve: #cba6f7;
    --ctp-red: #f38ba8;
    --ctp-maroon: #eba0ac;
    --ctp-peach: #fab387;
    --ctp-yellow: #f9e2af;
    --ctp-green: #a6e3a1;
    --ctp-teal: #94e2d5;
    --ctp-sky: #89dceb;
    --ctp-sapphire: #74c7ec;
    --ctp-blue: #89b4fa;
    --ctp-lavender: #b4befe;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--ctp-base);
    color: var(--ctp-text);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0;
    margin: 0;
}

.top-nav {
    width: 100%;
    background-color: var(--ctp-mantle);
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: center;
    border-bottom: 1px solid var(--ctp-surface1);
}

.back-link {
    color: var(--ctp-blue);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.15s ease;
}

.back-link:hover {
    color: var(--ctp-lavender);
}

.container {
    width: 100%;
    max-width: 900px;
    padding: 2rem 1rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    color: var(--ctp-blue);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

header p {
    color: var(--ctp-subtext0);
    font-size: 0.95rem;
}

main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.editor-panels {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.input-section,
.output-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

h2 {
    color: var(--ctp-subtext1);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.metadata-section {
    background-color: var(--ctp-mantle);
    border: 2px solid var(--ctp-surface0);
    border-radius: 8px;
    padding: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

label {
    color: var(--ctp-subtext1);
    font-size: 0.9rem;
    font-weight: 600;
}

input[type="text"],
select {
    background-color: var(--ctp-surface0);
    color: var(--ctp-text);
    border: 2px solid var(--ctp-surface1);
    border-radius: 8px;
    padding: 0.6rem 0.8rem;
    font-family: var(--font-family);
    font-size: 0.9rem;
    transition: border-color 0.2s ease;
}

input[type="text"]:focus,
select:focus {
    outline: none;
    border-color: var(--ctp-blue);
}

input[type="text"]::placeholder {
    color: var(--ctp-overlay0);
}

select {
    cursor: pointer;
    appearance: none;
    padding-right: 1.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239399b2' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
}

textarea {
    background-color: var(--ctp-surface0);
    color: var(--ctp-text);
    border: 2px solid var(--ctp-surface1);
    border-radius: 8px;
    padding: 1rem;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.9rem;
    resize: vertical;
    min-height: 300px;
    transition: border-color 0.2s ease;
}

textarea:focus {
    outline: none;
    border-color: var(--ctp-blue);
}

textarea::placeholder {
    color: var(--ctp-overlay0);
}

.button-row {
    display: flex;
    gap: 0.75rem;
}

button {
    background-color: var(--ctp-blue);
    color: var(--ctp-crust);
    border: none;
    border-radius: 8px;
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

button:hover:not(:disabled) {
    background-color: var(--ctp-lavender);
    transform: translateY(-1px);
}

button:active:not(:disabled) {
    transform: translateY(0);
}

button:disabled {
    background-color: var(--ctp-surface1);
    color: var(--ctp-overlay0);
    cursor: not-allowed;
}

button.secondary {
    background-color: var(--ctp-surface1);
    color: var(--ctp-subtext0);
}

button.secondary:hover:not(:disabled) {
    background-color: var(--ctp-surface2);
    color: var(--ctp-text);
}

button.success-flash {
    background-color: var(--ctp-green) !important;
    color: var(--ctp-crust) !important;
}

footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--ctp-surface0);
}

footer p {
    color: var(--ctp-overlay0);
    font-size: 0.8rem;
}

@media (min-width: 768px) {
    .editor-panels {
        flex-direction: row;
    }

    .input-section,
    .output-section {
        flex: 1;
    }
}