:root {
    --igcg-bg: #f5f7fb;
    --igcg-panel: #ffffff;
    --igcg-text: #1f2937;
    --igcg-muted: #4b5563;
    --igcg-border: #d8dee9;
    --igcg-accent: #2563eb;
    --igcg-accent-dark: #1d4ed8;
    --igcg-accent-soft: #eff6ff;
    --igcg-secondary: #374151;
    --igcg-secondary-dark: #1f2937;
    --igcg-success: #176b3a;
    --igcg-error: #b42318;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--igcg-bg);
    color: var(--igcg-text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
}

.igcg-page {
    min-height: 100vh;
}

.igcg-container {
    width: min(1200px, calc(100% - 30px));
    margin: 0 auto;
}

.igcg-hero {
    padding: 70px 0 45px;
    color: #ffffff;
    background: #1f2937;
}

.igcg-hero h1 {
    max-width: 850px;
    margin: 0 0 16px;
    font-size: clamp(36px, 6vw, 64px);
    line-height: 1.05;
    font-weight: 800;
}

.igcg-hero p:not(.igcg-kicker) {
    max-width: 760px;
    margin: 0;
    color: rgba(255, 255, 255, 0.86);
    font-size: 18px;
}

.igcg-kicker {
    display: inline-block;
    margin: 0 0 16px;
    padding: 8px 14px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.6px;
    text-transform: uppercase;
}

.igcg-generator {
    padding: 35px 0 60px;
}

.igcg-panel {
    position: relative;
    margin-bottom: 24px;
    padding: 22px;
    border: 1px solid var(--igcg-border);
    border-radius: 14px;
    background: var(--igcg-panel);
    box-shadow: 0 12px 30px rgba(31, 41, 55, 0.08);
}

.igcg-panel:before {
    content: "";
    position: absolute;
    top: 0;
    left: 18px;
    right: 18px;
    height: 4px;
    border-radius: 0 0 999px 999px;
    background: var(--igcg-accent);
}

.igcg-help {
    background: #ffffff;
}

.igcg-help h2,
.igcg-panel h2,
.igcg-panel h3 {
    margin-top: 0;
}

.igcg-help ol {
    margin-bottom: 18px;
}

.igcg-help code {
    display: inline-block;
    max-width: 100%;
    margin: 2px 0;
    padding: 2px 6px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    background: #f8fafc;
    color: #111827;
    overflow-wrap: anywhere;
}

.igcg-field {
    margin-bottom: 20px;
}

.igcg-field label {
    display: block;
    margin-bottom: 7px;
    font-weight: 700;
}

.igcg-field select,
.igcg-field textarea {
    width: 100%;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 11px;
    background: #ffffff;
    color: var(--igcg-text);
    font: inherit;
}

.igcg-field select:focus,
.igcg-field textarea:focus {
    border-color: var(--igcg-accent);
    outline: 3px solid rgba(37, 99, 235, 0.18);
}

.igcg-field textarea {
    min-height: 190px;
    resize: vertical;
    font-family: Consolas, Monaco, monospace;
    font-size: 14px;
    line-height: 1.45;
}

.igcg-output {
    min-height: 380px;
}

.igcg-button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.igcg-button {
    display: inline-block;
    border: 0;
    border-radius: 8px;
    background: var(--igcg-accent);
    color: #ffffff;
    padding: 11px 18px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.igcg-button:hover,
.igcg-button:focus {
    background: var(--igcg-accent-dark);
    outline: none;
    transform: translateY(-1px);
}

.igcg-button-secondary {
    background: var(--igcg-secondary);
}

.igcg-button-secondary:hover,
.igcg-button-secondary:focus {
    background: var(--igcg-secondary-dark);
}

.igcg-status {
    min-height: 24px;
    margin-bottom: 18px;
    font-weight: 700;
}

.igcg-status.success {
    color: var(--igcg-success);
}

.igcg-status.error {
    color: var(--igcg-error);
}

.igcg-preview-frame {
    width: 100%;
    min-height: 1000px;
    border: 1px solid var(--igcg-border);
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 10px 24px rgba(31, 41, 55, 0.07);
}

@media (max-width: 767px) {
    .igcg-hero {
        padding: 45px 0 35px;
    }

    .igcg-panel {
        padding: 18px;
    }

    .igcg-button {
        width: 100%;
    }
}