:root {
    --color-bg: #0D0C1D;
    --color-bg-panel: rgba(23, 22, 45, 0.7);
    --color-text: #E0E0E0;
    --color-text-muted: #A8A7B4;
    --color-primary: #8A44F2;
    --color-accent: #4DD9BF;
    --color-border: rgba(74, 74, 106, 0.5);
    --color-border-focus: var(--color-accent);
}

html.light {
    --color-bg: #F9FAFB;
    --color-bg-panel: rgba(255, 255, 255, 0.7);
    --color-text: #111827;
    --color-text-muted: #6B7280;
    --color-border: rgba(0, 0, 0, 0.08);
}


html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100%;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.contact-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    z-index: 10;
}

.back-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: bold;
    font-size: 1rem;
    transition: color 0.2s ease;
}

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

.contact-main {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 100vh;
    padding: 80px 20px 20px;
}

.form-container {
    width: 100%;
    max-width: 600px;
    background: var(--color-bg-panel);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 40px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

html.light .form-container {
    box-shadow: 0 10px 30px rgba(138, 68, 242, 0.1);
}

.form-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 10px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.form-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background-color: rgba(0,0,0,0.2);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease;
}

html.light .form-group input,
html.light .form-group textarea {
    background-color: rgba(255,255,255,0.8);
    border-color: #D1D5DB;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
    opacity: 0.7;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 15px rgba(77, 217, 191, 0.2);
}

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

.btn-submit {
    display: block;
    width: 100%;
    padding: 14px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    background-color: var(--color-primary);
    color: white;
}
.btn-submit:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

html.light .btn-submit:hover {
     box-shadow: 0 8px 24px rgba(138, 68, 242, 0.2);
}

.form-backend-note {
    margin-top: 20px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    opacity: 0.8;
}
.form-backend-note strong {
    color: var(--color-accent);
}

@media (max-width: 600px) {
    .form-container {
        padding: 25px;
    }
    .form-title {
        font-size: 2rem;
    }
}