/* ══════════════════════════════════════════════════════════
   Calculadora PJ vs CLT — Dark Tech Palette
   ══════════════════════════════════════════════════════════ */

:root {
    --navy-deep: #0F172A;
    --navy-mid: #1E293B;
    --slate: #334155;
    --blue: #3B82F6;
    --cyan: #22D3EE;
    --muted: #94A3B8;
    --white: #F8FAFC;

    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
    background-color: var(--navy-deep);
    background-image:
        radial-gradient(ellipse at 20% 0%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 0%, rgba(34, 211, 238, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 100%, rgba(59, 130, 246, 0.03) 0%, transparent 40%);
    color: var(--white);
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--navy-deep); }
::-webkit-scrollbar-thumb { background: var(--slate); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 3rem;
}

/* ── Ads laterais ───────────────────────────────────────── */

.ads-side {
    position: fixed;
    top: 148px;
    width: 120px;
    min-height: 600px;
    z-index: 5;
}

.ads-left {
    left: 10px;
}

.ads-right {
    right: 10px;
}

.ads-side .adsbygoogle {
    width: 120px;
    min-height: 600px;
    border: 1px solid rgba(51, 65, 85, 0.45);
    border-radius: var(--radius-sm);
    background: rgba(15, 23, 42, 0.35);
}

/* ── Header ──────────────────────────────────────────────── */

header {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

header::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--blue), var(--cyan), transparent);
    border-radius: 2px;
}

header h1 {
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.text-pj  {
    color: var(--cyan);
    text-shadow: 0 0 30px rgba(34, 211, 238, 0.3);
}
.text-clt {
    color: var(--blue);
    text-shadow: 0 0 30px rgba(59, 130, 246, 0.3);
}

header h1 .vs {
    font-size: 1rem;
    font-weight: 400;
    color: var(--muted);
    vertical-align: middle;
    margin: 0 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

header .subtitle {
    color: var(--muted);
    font-size: 1rem;
    margin-top: 0.35rem;
}

/* ── Cards base ──────────────────────────────────────────── */

.card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.9), rgba(30, 41, 59, 0.7));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(51, 65, 85, 0.6);
    border-radius: var(--radius);
    padding: 1.75rem;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.card--clt {
    border-left: 3px solid var(--blue);
}
.card--clt:hover {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.08);
}

.card--pj {
    border-left: 3px solid var(--cyan);
}
.card--pj:hover {
    border-color: rgba(34, 211, 238, 0.4);
    box-shadow: 0 8px 32px rgba(34, 211, 238, 0.08);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.card-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.card-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.2rem 0.7rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.tag--clt {
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.tag--pj {
    background: rgba(34, 211, 238, 0.15);
    color: var(--cyan);
    border: 1px solid rgba(34, 211, 238, 0.3);
}

/* ── Inputs section ──────────────────────────────────────── */

.inputs-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.input-group {
    margin-bottom: 1.1rem;
}

.input-group:last-child {
    margin-bottom: 0;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--muted);
    margin-bottom: 0.4rem;
}

.input-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
    margin-top: 0.3rem;
    opacity: 0.7;
}

.hidden { display: none !important; }

/* ── VT Toggle ───────────────────────────────────────────── */

.vt-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.4rem;
}

.vt-header label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--muted);
    margin-bottom: 0;
}

.toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.toggle-label {
    font-size: 0.72rem;
    color: var(--muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.toggle-track {
    position: relative;
    width: 36px;
    height: 20px;
    background: var(--slate);
    border-radius: 10px;
    transition: background var(--transition);
}

.toggle-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: var(--muted);
    border-radius: 50%;
    transition: all var(--transition);
}

.toggle.active .toggle-track {
    background: var(--cyan);
}

.toggle.active .toggle-thumb {
    left: 18px;
    background: var(--white);
}

.input-wrapper {
    display: flex;
    align-items: center;
    background: var(--navy-deep);
    border: 1px solid var(--slate);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.input-wrapper:focus-within {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.card--pj .input-wrapper:focus-within {
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
}

.input-prefix {
    padding: 0 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
    user-select: none;
    background: rgba(51, 65, 85, 0.5);
    line-height: 2.75rem;
    flex-shrink: 0;
}

.input-wrapper input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--white);
    font-size: 1rem;
    font-family: inherit;
    padding: 0.65rem 0.75rem;
    line-height: 1.4;
    min-width: 0;
}

input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type=number] {
    -moz-appearance: textfield;
    appearance: textfield;
}

select {
    width: 100%;
    background: var(--navy-deep);
    border: 1px solid var(--slate);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 1rem;
    font-family: inherit;
    padding: 0.65rem 0.75rem;
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition);
}

select:focus {
    border-color: var(--cyan);
}

select option {
    background: var(--navy-mid);
    color: var(--white);
}

/* ── Action button ───────────────────────────────────────── */

.action-bar {
    text-align: center;
    margin-bottom: 2.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

#btnCalcular {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--blue), #2563EB);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.9rem 3rem;
    font-size: 1.05rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.25);
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

#btnCalcular::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -60%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        115deg,
        transparent 30%,
        rgba(255, 255, 255, 0.08) 50%,
        transparent 70%
    );
    animation: btnShimmer 3s ease-in-out infinite;
}

@keyframes btnShimmer {
    0%, 100% { transform: translateX(-80%); }
    50%      { transform: translateX(80%); }
}

#btnCalcular:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4), 0 0 60px rgba(59, 130, 246, 0.15);
}

#btnCalcular:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.2);
}

#btnExportar {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--cyan);
    border: 1px solid var(--cyan);
    border-radius: var(--radius-sm);
    padding: 0.9rem 2rem;
    font-size: 1.05rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
    letter-spacing: 0.01em;
}

#btnExportar.hidden { display: none; }

#btnExportar:hover {
    background: rgba(34, 211, 238, 0.1);
    box-shadow: 0 4px 20px rgba(34, 211, 238, 0.15);
    transform: translateY(-2px);
}

#btnExportar:active {
    transform: translateY(0);
}

/* ── Results section ─────────────────────────────────────── */

.results-section {
    display: none;
}

.results-section.visible {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

/* ── Result cards ────────────────────────────────────────── */

.result-card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.9), rgba(30, 41, 59, 0.7));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(51, 65, 85, 0.6);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    animation: slideUp 0.5s ease both;
}

.results-grid .result-card:nth-child(1) { animation-delay: 0.1s; }
.results-grid .result-card:nth-child(2) { animation-delay: 0.2s; }
.results-grid .result-card:nth-child(3) { animation-delay: 0.35s; }

.result-card .card-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--slate);
}

.card-title--clt { color: var(--blue); }
.card-title--pj  { color: var(--cyan); }

.result-card--annual {
    grid-column: 1 / -1;
}

/* ── Line items ──────────────────────────────────────────── */

.line-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0;
    font-size: 0.9rem;
    border-radius: 4px;
    transition: background var(--transition);
}

.line-item:hover {
    background: rgba(51, 65, 85, 0.25);
    padding-left: 0.4rem;
    padding-right: 0.4rem;
}

.line-item .label {
    color: var(--muted);
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.line-item .value {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.line-item .value.negative { color: var(--muted); }
.line-item .value.positive { color: var(--cyan); }

.line-item--total {
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid var(--slate);
}

.line-item--total .label {
    color: var(--white);
    font-weight: 600;
}

.line-item--total .value {
    font-size: 1.15rem;
}

.line-item--total.clt .value { color: var(--blue); }
.line-item--total.pj .value  { color: var(--cyan); }

/* ── Annual items grid ───────────────────────────────────── */

.annual-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.annual-item {
    text-align: center;
    padding: 1rem 0.75rem;
    background: var(--navy-deep);
    border-radius: var(--radius-sm);
    border: 1px solid var(--slate);
    transition: border-color var(--transition), transform var(--transition);
}

.annual-item:hover {
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.annual-item .item-label {
    font-size: 0.78rem;
    color: var(--muted);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.annual-item .item-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    font-variant-numeric: tabular-nums;
}

.annual-totals {
    display: flex;
    justify-content: space-around;
    padding-top: 1rem;
    border-top: 1px solid var(--slate);
}

.annual-total {
    text-align: center;
}

.annual-total .item-label {
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 0.35rem;
}

.annual-total .item-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blue);
    font-variant-numeric: tabular-nums;
}

/* ── Badges ──────────────────────────────────────────────── */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    white-space: nowrap;
}

.badge--isento {
    background: rgba(34, 211, 238, 0.15);
    color: var(--cyan);
}

.badge--parcial {
    background: rgba(251, 191, 36, 0.15);
    color: #FBBF24;
}

.badge--integral {
    background: rgba(148, 163, 184, 0.15);
    color: var(--muted);
}

/* ── Verdict ─────────────────────────────────────────────── */

.verdict {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.95), rgba(30, 41, 59, 0.8));
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    position: relative;
    animation: slideUp 0.6s ease both;
    animation-delay: 0.45s;
}

.verdict--pj {
    border: 2px solid var(--cyan);
    box-shadow: 0 0 60px rgba(34, 211, 238, 0.1), 0 0 120px rgba(34, 211, 238, 0.04), var(--shadow);
}

.verdict--clt {
    border: 2px solid var(--blue);
    box-shadow: 0 0 60px rgba(59, 130, 246, 0.1), 0 0 120px rgba(59, 130, 246, 0.04), var(--shadow);
}

.verdict h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.verdict--pj h3 {
    color: var(--cyan);
    text-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
}
.verdict--clt h3 {
    color: var(--blue);
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.verdict-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.verdict-col { text-align: center; }

.verdict-label {
    display: block;
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 0.3rem;
}

.verdict-value {
    font-size: 1.4rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.verdict-value--pj  { color: var(--cyan); }
.verdict-value--clt { color: var(--blue); }

.verdict-vs {
    font-size: 0.85rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.diff {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.diff-item {
    font-size: 0.9rem;
    color: var(--muted);
}

.diff-item strong {
    color: var(--white);
    font-weight: 600;
}

/* ── Breakeven ───────────────────────────────────────────── */

.breakeven {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--slate);
}

.breakeven-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
    padding: 1rem 2rem;
    background: var(--navy-deep);
    border-radius: var(--radius-sm);
    border: 1px solid var(--slate);
    transition: border-color var(--transition), transform var(--transition);
}

.breakeven-item:hover {
    transform: translateY(-2px);
    border-color: rgba(148, 163, 184, 0.4);
}

.breakeven-label {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.4;
}

.breakeven-value {
    font-size: 1.35rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.breakeven-value small {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--muted);
    margin-left: 0.2rem;
}

/* ── Disclaimer ──────────────────────────────────────────── */

.disclaimer {
    display: none;
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid var(--slate);
    margin-top: 0.5rem;
}

.disclaimer.visible {
    display: block;
}

.disclaimer p {
    font-size: 0.78rem;
    color: var(--muted);
    line-height: 1.75;
    max-width: 700px;
    margin: 0 auto;
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1rem 2rem;
    }

    header h1 {
        font-size: 2rem;
    }

    .inputs-section,
    .results-grid {
        grid-template-columns: 1fr;
    }

    .result-card--annual {
        grid-column: auto;
    }

    .annual-items {
        grid-template-columns: 1fr;
    }

    .annual-totals {
        flex-direction: column;
        gap: 1rem;
    }

    .verdict-comparison {
        flex-direction: column;
        gap: 0.75rem;
    }

    .verdict-vs {
        font-size: 0.75rem;
    }

    .diff {
        flex-direction: column;
        gap: 0.5rem;
    }

    .breakeven {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1380px) {
    .ads-side {
        display: none;
    }
}