:root {
    --bg: #fafafa;
    --card-bg: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --accent-light: rgba(79, 70, 229, 0.08);
    --success: #10b981;
    --danger: #ef4444;
    --warning-bg: #fffbeb;
    --warning-text: #92400e;
    --error-bg: #fef2f2;
    --error-text: #991b1b;
    --radius: 12px;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    padding: 24px 16px;
    -webkit-font-smoothing: antialiased;
    position: relative;
    min-height: 100vh;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
    background-size: 32px 32px;
    opacity: 0.4;
    z-index: -2;
    pointer-events: none;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black, transparent);
}

body::after {
    content: "";
    position: fixed;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 80vw;
    height: 60vh;
    background: radial-gradient(ellipse at center, rgba(79, 70, 229, 0.07) 0%, rgba(79, 70, 229, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

.container { max-width: 960px; margin: 0 auto; position: relative; z-index: 1; }

header { text-align: center; margin-bottom: 48px; padding: 20px 0; }
.logo { display: inline-flex; align-items: center; gap: 12px; font-size: 1.75rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; letter-spacing: -0.02em; }
.subtitle { color: var(--text-secondary); font-size: 1.05rem; font-weight: 400; }

.grid { display: grid; grid-template-columns: 1fr; gap: 24px; margin-bottom: 48px; }
@media (min-width: 768px) { .grid { grid-template-columns: 1fr 1fr; } }

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.card h2 { font-size: 1.125rem; font-weight: 600; color: var(--text-primary); letter-spacing: -0.01em; }

.hint-text { color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 20px; }
.hint-text.center { text-align: center; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.8125rem; font-weight: 500; margin-bottom: 6px; color: var(--text-primary); text-transform: uppercase; letter-spacing: 0.03em; }
.form-group .hint { font-size: 0.75rem; color: var(--text-secondary); margin-top: 6px; }

.input-wrapper { position: relative; }
.input-wrapper input {
    width: 100%;
    padding: 10px 40px 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.9375rem;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
    color: var(--text-primary);
    background: var(--card-bg);
    transition: all 0.2s ease;
}
.input-wrapper input:focus { border-color: var(--accent); outline: 2px solid var(--accent); outline-offset: 2px; }
.input-suffix { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); font-size: 0.875rem; font-weight: 500; pointer-events: none; }

.results-card { display: flex; flex-direction: column; }
.result-highlight {
    background: var(--accent-light);
    border: 1px solid rgba(79, 70, 229, 0.15);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 24px;
    text-align: center;
}
.result-highlight .result-label { display: block; font-size: 0.8125rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent); margin-bottom: 8px; }
.result-highlight .result-value { font-size: 2.25rem; font-weight: 700; color: var(--text-primary); font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace; letter-spacing: -0.02em; }

.results-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.results-grid dt, .results-grid dd { margin: 0; }

.result-label { font-size: 0.8125rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.03em; }
.result-value { font-size: 1.125rem; font-weight: 600; font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace; }
.result-value.highlight { color: var(--text-primary); }
.result-value.positive { color: var(--success); }
.result-value.negative { color: var(--danger); }

.breakeven-block { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.breakeven-block .result-label { font-size: 0.875rem; font-weight: 500; color: var(--text-primary); }
.breakeven-block .result-value { font-size: 1.25rem; font-weight: 700; font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace; }

.disclaimer {
    margin-top: auto;
    padding: 16px;
    background-color: var(--warning-bg);
    border-radius: 8px;
    font-size: 0.8125rem;
    color: var(--warning-text);
    line-height: 1.5;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.disclaimer svg { flex-shrink: 0; margin-top: 2px; }

.partners-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 40px 28px;
    margin-bottom: 48px;
    border: 1px solid var(--border);
    text-align: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.partners-section h2 { font-size: 1.25rem; font-weight: 600; margin-bottom: 8px; }
.partners-grid { display: grid; grid-template-columns: 1fr; gap: 20px; margin-top: 32px; }
@media (min-width: 768px) { .partners-grid { grid-template-columns: repeat(2, 1fr); max-width: 650px; margin-left: auto; margin-right: auto; } }

.partner-card {
    background: var(--bg);
    padding: 24px;
    border-radius: 10px;
    border: 1px solid var(--border);
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.partner-card:hover { transform: translateY(-2px); box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05); border-color: var(--accent); }
.partner-icon { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 16px; color: var(--text-secondary); }
.partner-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; color: var(--text-primary); }
.partner-card p { color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 20px; line-height: 1.5; }
.partner-btn { display: inline-block; background-color: var(--text-primary); color: white; padding: 8px 16px; border-radius: 6px; text-decoration: none; font-weight: 500; font-size: 0.8125rem; transition: background 0.2s ease; }
.partner-btn:hover { background-color: var(--accent); }
.partners-disclosure { margin-top: 32px; font-size: 0.75rem; color: var(--text-secondary); }

.testimonials { margin-bottom: 48px; }
.testimonials h2 { text-align: center; font-size: 1.25rem; font-weight: 600; margin-bottom: 32px; }
.testimonial-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 768px) { .testimonial-grid { grid-template-columns: repeat(3, 1fr); } }

.testimonial-card {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.testimonial-card blockquote { margin: 0 0 16px 0; font-size: 0.9375rem; line-height: 1.6; color: var(--text-primary); }
.testimonial-card blockquote p { margin: 0; font-style: italic; }
.testimonial-author { font-weight: 600; color: var(--text-primary); font-size: 0.875rem; }
.testimonial-date { font-size: 0.75rem; color: var(--text-secondary); margin-top: 4px; }

.review-form { margin-bottom: 48px; max-width: 600px; margin-left: auto; margin-right: auto; }
.review-form input, .review-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9375rem;
    margin-bottom: 16px;
    background: var(--card-bg);
    transition: all 0.2s ease;
}
.review-form input:focus, .review-form textarea:focus { border-color: var(--accent); outline: 2px solid var(--accent); outline-offset: 2px; }
.review-form textarea { resize: vertical; min-height: 120px; }

.consent-wrapper { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 20px; font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.5; }
.consent-wrapper input[type="checkbox"] { width: 16px; height: 16px; margin-top: 2px; accent-color: var(--accent); cursor: pointer; flex-shrink: 0; }
.consent-wrapper label { cursor: pointer; }
.consent-wrapper a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }

.btn {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, opacity 0.2s ease;
    width: 100%;
}
.btn:hover { background-color: var(--accent-hover); }
.btn:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled { opacity: 0.7; cursor: not-allowed; }

.btn-reset {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}
.btn-reset:hover { background: var(--bg); color: var(--text-primary); border-color: var(--text-secondary); }
.btn-reset:focus, .btn-reset:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.copy-email-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}
.copy-email-btn:hover {
    background: var(--bg);
    color: var(--accent);
    border-color: var(--accent);
}
.copy-email-btn:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.copy-email-btn.copied {
    background: #ecfdf5;
    color: #065f46;
    border-color: #a7f3d0;
}

.success-message, .error-message { display: none; padding: 12px; border-radius: 8px; margin-top: 16px; text-align: center; font-size: 0.875rem; font-weight: 500; }
.success-message { background-color: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.error-message { background-color: var(--error-bg); color: var(--error-text); border: 1px solid #fecaca; }

footer { text-align: center; padding: 32px 0; color: var(--text-secondary); font-size: 0.8125rem; border-top: 1px solid var(--border); }
.footer-links { margin-top: 12px; display: flex; justify-content: center; align-items: center; gap: 12px; flex-wrap: wrap; }
.footer-links a { color: var(--text-secondary); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-links .separator { color: var(--border); }

.back-link { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 24px; color: var(--text-secondary); text-decoration: none; font-size: 0.875rem; font-weight: 500; transition: color 0.2s; }
.back-link:hover { color: var(--accent); }
.back-link:focus { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.policy-content {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    max-width: 800px;
    margin: 0 auto;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.policy-content h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 24px; letter-spacing: -0.02em; }
.policy-content h2 { font-size: 1.125rem; font-weight: 600; margin-top: 32px; margin-bottom: 12px; color: var(--text-primary); }
.policy-content p, .policy-content li { margin-bottom: 12px; color: var(--text-secondary); line-height: 1.7; font-size: 0.9375rem; }
.policy-content ul { padding-left: 20px; }
.policy-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.update-date { font-size: 0.8125rem; color: var(--text-secondary); margin-bottom: 32px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}