:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --muted-color: #94a3b8;
    --primary-color: #0ea5e9;
    --danger-color: #ef4444;
    --radius: 8px;
    --transition: 0.3s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding-bottom: 60px;
}

main {
    max-width: 600px;
    margin: 0 auto;
    padding: 40px 20px;
}

h1 {
    font-weight: 300;
    letter-spacing: 2px;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-color);
    text-shadow: 0 0 10px rgba(14, 165, 233, 0.3);
}

form {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 30px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

form p {
    text-align: center;
    color: var(--muted-color);
    font-size: 0.9em;
    margin-bottom: 20px;
}

.success-msg {
    color: #15803d;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid #22c55e;
    padding: 12px 20px;
    border-radius: var(--radius);
    text-align: center;
    margin-bottom: 20px;
    font-weight: 500;
    box-shadow: 0 0 10px rgba(34, 197, 94, 0.2);
}

label {
    display: block;
    margin: 20px 0 8px;
    color: var(--muted-color);
    font-weight: 500;
    font-size: 0.9rem;
}

label:first-of-type {
    margin-top: 0;
}

input:not([type='submit']):not([type='file']):not([type='radio']):not([type='checkbox']),
textarea,
select {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid #334155;
    border-radius: var(--radius);
    color: var(--text-color);
    font: inherit;
    transition: all var(--transition);
}

select option {
    background-color: var(--bg-color);
    color: var(--text-color);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px rgba(14, 165, 233, 0.3);
}

.invalid {
    border-color: var(--danger-color) !important;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.3) !important;
}

textarea {
    resize: vertical;
    min-height: 120px;
}

fieldset {
    border: 1px solid #334155;
    border-radius: var(--radius);
    padding: 20px;
    margin-top: 30px;
    background: rgba(0, 0, 0, 0.2);
}

legend {
    color: var(--primary-color);
    padding: 0 10px;
    font-weight: bold;
}

fieldset p {
    font-size: 0.9em;
    color: var(--muted-color);
    margin-top: 0;
}

fieldset label {
    display: flex;
    align-items: center;
    margin: 12px 0;
    color: var(--text-color);
    font-weight: normal;  
    cursor: pointer;
}

fieldset input[type="radio"] {
    margin: 0 10px 0 0;
    cursor: pointer;
    width: auto;
}

button[type='submit'],
input[type='submit'] {
    width: 100%;
    margin-top: 30px;
    padding: 12px;
    background: var(--primary-color);
    color: var(--text-color);
    border: none;
    border-radius: var(--radius);
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition);
}

button[type='submit']:hover,
input[type='submit']:hover {
    background: #0284c7;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.5);
}

form a {
    display: block;
    text-align: center;
    margin-top: 15px;
    color: var(--muted-color);
    text-decoration: none;
    font-size: 0.9rem;
}

form a:hover {
    color: var(--text-color);
    text-decoration: underline;
}

#file_input_container {
    margin-top: 15px;
    padding: 20px;
    text-align: center;
    border: 2px dashed #334155;
    border-radius: var(--radius);
}

.media-preview {
    margin-top: 15px;
    text-align: center;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius);
}

.media-preview img,
.media-preview video {
    max-width: 100%;
    max-height: 300px;
    border-radius: 4px;
}

.error-msg {
    color: #fca5a5;
    background: rgba(127, 29, 29, 0.25);
    border: 1px solid var(--danger-color);
    padding: 12px;
    border-radius: var(--radius);
    text-align: center;
    margin-bottom: 25px;
    font-weight: bold;
}

.hidden {
    display: none !important;
}

.elem-row {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
}

.elem-row select {
    flex-grow: 1;
    margin-bottom: 0;
}

.remove-btn {
    flex-shrink: 0;
    width: 45px;
    height: 45px;
    cursor: pointer;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    border-radius: var(--radius);
    font-weight: bold;
}

.remove-btn:hover {
    background: var(--danger-color);
    color: #fff;
}

#add-btn {
    width: 100%;
    margin: 10px 0 30px;
    padding: 12px;
    cursor: pointer;
    background: transparent;
    border: 1px dashed #334155;
    color: var(--primary-color);
    border-radius: var(--radius);
    font-weight: 600;
}

#add-btn:hover {
    border-color: var(--primary-color);
    background: rgba(14, 165, 233, 0.05);
}