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

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-focus-ring: rgba(37, 99, 235, 0.25);
    --bg-page: #f1f5f9;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #cbd5e1;
    --border-focus: #2563eb;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
    --danger-border: #fecaca;
    --success: #16a34a;
    --success-bg: #f0fdf4;
    --success-border: #bbf7d0;
    --radius: 12px;
    --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    line-height: 1.5;
}

.page-wrapper {
    width: 100%;
    max-width: 580px;
}

.card-container {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 36px 32px;
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.card-header {
    text-align: center;
    margin-bottom: 24px;
}

.icon-bubble {
    width: 56px;
    height: 56px;
    background: #eff6ff;
    color: var(--primary);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

h1 {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 0.925rem;
    color: var(--text-muted);
    line-height: 1.45;
}

/* Alert Notification Banner */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 20px;
    transition: all 0.2s ease-in-out;
}

.alert.hidden {
    display: none;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.alert-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.alert-icon svg {
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
    word-break: break-word;
}

/* Form Styles */
.form-group {
    margin-bottom: 18px;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: #334155;
    margin-bottom: 6px;
}

.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.char-count {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.form-row {
    display: flex;
    gap: 16px;
}

.flex-1 {
    flex: 1;
}

.required {
    color: var(--danger);
}

.optional {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.8rem;
}

.input-wrapper input,
.input-wrapper textarea {
    width: 100%;
    font-family: inherit;
    font-size: 0.925rem;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: #ffffff;
    color: var(--text-main);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    outline: none;
}

.input-wrapper input:focus,
.input-wrapper textarea:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-focus-ring);
}

.input-wrapper input.input-error,
.input-wrapper textarea.input-error {
    border-color: var(--danger);
    background-color: #fffafa;
}

.input-wrapper input.input-error:focus,
.input-wrapper textarea.input-error:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.input-wrapper textarea {
    resize: vertical;
    min-height: 100px;
}

.error-msg {
    display: block;
    font-size: 0.8rem;
    color: var(--danger);
    margin-top: 4px;
    min-height: 18px;
}

/* reCAPTCHA container */
#recaptcha-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 16px 0;
}

#recaptcha-wrapper.hidden {
    display: none;
}

/* Submit Button */
.btn-primary {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--primary);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s ease, transform 0.05s ease;
    margin-top: 8px;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(1px);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
}

.btn-spinner.hidden {
    display: none;
}

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

.card-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 0.775rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 6px;
    line-height: 1.5;
}

@media (max-width: 480px) {
    .card-container {
        padding: 24px 18px;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    h1 {
        font-size: 1.4rem;
    }
}