/* Reset and Base Styles */
:root {
    --primary-color: #1a73e8;
    --secondary-color: #4285f4;
    --text-color: #202124;
    --border-color: #dadce0;
    --error-color: #d93025;
    --success-color: #188038;
    --background-color: #f8f9fa;
    --input-background: #ffffff;
    --hover-color: rgba(26, 115, 232, 0.1);
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    min-height: 100vh;
}

/* Container and Layout */
.container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Header Styles */
header {
    text-align: center;
    padding: 1.5rem 0 0;
    margin-bottom: 1rem;
}

.logo {
    max-width: 180px;
    height: auto;
    margin-bottom: 1rem;
    transition: transform var(--transition-speed);
}

.logo:hover {
    transform: scale(1.05);
}

h1 {
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

/* Form Styles */
.feedback-form {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2.5rem;
    background-color: var(--input-background);
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.feedback-form:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--background-color);
    border-radius: 12px;
    transition: transform var(--transition-speed), background-color var(--transition-speed);
}

.form-group:hover {
    transform: translateY(-2px);
    background: #f0f2f5;
}

label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
    color: var(--text-color);
    font-size: 1.1rem;
}

.required {
    color: var(--error-color);
    margin-left: 4px;
}

/* Input Styles */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all var(--transition-speed);
    background: white;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(26, 115, 232, 0.1);
}

/* Star Rating */
.star-rating {
    display: flex;
    gap: 0.75rem;
    font-size: 2rem;
    margin: 1rem 0;
}

.star-rating i {
    cursor: pointer;
    transition: all var(--transition-speed);
    color: #ffd700;
}

.star-rating i:hover {
    transform: scale(1.2);
    filter: brightness(1.1);
}

/* Checkbox and Multi-select */
.checkbox-group {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.checkbox-label:hover {
    background: var(--hover-color);
    transform: translateX(4px);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    transition: all var(--transition-speed);
}

.checkbox-label input[type="checkbox"]:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Submit Button */
.submit-button {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.submit-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.2);
}

.submit-button:active {
    transform: translateY(0);
}

/* Back Button */
.back-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    transition: all var(--transition-speed);
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.back-button:hover {
    background: var(--hover-color);
    transform: translateX(-4px);
}

.back-button i {
    font-size: 1.1rem;
}

/* Error Messages */
.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
    padding: 0.5rem;
    background: rgba(217, 48, 37, 0.1);
    border-radius: 4px;
}

.error-message.visible {
    display: block;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Language switch at bottom center (round, soft) */
.language-switch-wrap {
    text-align: center;
    padding: 1.25rem 0 0.5rem;
}

.language-switch-bottom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    border: 1px solid rgba(0, 0, 0, 0.1);
    background: rgba(0, 0, 0, 0.06);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.language-switch-bottom:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

/* Lobby language splash */
.language-splash {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1100;
}

.language-splash.visible {
    display: flex;
}

.language-splash-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(4px);
}

.language-splash-content {
    position: relative;
    max-width: 360px;
    width: 90%;
    padding: 2rem 2.5rem;
    border-radius: 18px;
    background: #ffffff;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
    text-align: center;
    z-index: 1;
}

.language-splash-content h2 {
    font-size: 1.8rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.language-splash-subtitle {
    margin-bottom: 1.75rem;
    color: var(--text-color);
    font-size: 0.95rem;
}

.language-splash-subtitle-es {
    display: block;
    margin-top: 0.25rem;
}

.language-splash-title-bilingual {
    font-size: 1.6rem;
}

.language-splash-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.language-splash-btn {
    padding: 0.9rem 1.5rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.language-splash-btn.primary {
    background: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
}

.language-splash-btn.primary:hover {
    background: var(--secondary-color);
}

.language-splash-btn.secondary {
    background: #ffffff;
    color: var(--primary-color);
}

.language-splash-btn.secondary:hover {
    background: var(--hover-color);
}

/* Kiosk config modal */
.kiosk-config {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1200;
}

.kiosk-config.visible {
    display: flex;
}

.kiosk-config-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
}

.kiosk-config-content {
    position: relative;
    z-index: 1;
    max-width: 360px;
    width: 90%;
    padding: 1.5rem 1.75rem;
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.25);
    font-size: 0.9rem;
}

.kiosk-config-content h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.kiosk-config-note {
    margin-bottom: 0.75rem;
    color: #555;
}

.kiosk-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.75rem 0 0.5rem;
    font-weight: 500;
}

.kiosk-config-help {
    color: #666;
    line-height: 1.4;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .feedback-form {
        padding: 1.5rem;
        margin: 1rem;
    }

    .form-group {
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .star-rating {
        font-size: 1.75rem;
    }

    .submit-button {
        padding: 0.875rem 1.5rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.feedback-form {
    animation: fadeIn 0.5s ease-out;
}

/* Success Message */
.success-message {
    background-color: var(--success-color);
    color: white;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    display: none;
}

.success-message.visible {
    display: block;
}

/* Department Logo */
.department-logo {
    max-width: 200px;
    margin: 0 auto 2rem;
    display: block;
}

footer {
    font-size: 0.8rem;
    text-align: center;
    padding: 2rem 0;
}

@media (max-width: 768px) {
    .department-logo {
        max-width: 150px;
    }
}