:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .06);
    --shadow-lg: 0 10px 25px rgba(15, 23, 42, .08), 0 4px 10px rgba(15, 23, 42, .06);
    --max-width: 1100px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; }

/* Header */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 20;
}
.site-header__inner {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .85rem 1rem;
    flex-wrap: wrap;
}
.site-logo {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
}
.site-logo:hover { text-decoration: none; color: var(--color-primary); }
.site-header__tool {
    color: var(--color-text-muted);
    font-weight: 600;
}
.site-header__nav { margin-left: auto; }
.site-header__nav a { font-weight: 600; font-size: .95rem; }

/* Ads */
.ad-zone {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    align-items: center;
    justify-content: center;
    padding: .75rem 0;
}
.ad-mailpro {
    flex: 1 1 320px;
    display: flex;
    flex-direction: column;
    gap: .15rem;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    color: #fff;
    padding: .85rem 1.1rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.ad-mailpro:hover { text-decoration: none; opacity: .92; }
.ad-mailpro__badge {
    align-self: flex-start;
    font-size: .65rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    background: rgba(255,255,255,.15);
    padding: .1rem .5rem;
    border-radius: 999px;
}
.ad-mailpro__title { font-weight: 700; font-size: 1.05rem; }
.ad-mailpro__sub { font-size: .85rem; color: #cbd5e1; }

.ad-adsense {
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text-muted);
    font-size: .8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.ad-adsense--desktop { width: 300px; height: 250px; display: none; }
.ad-adsense--mobile { width: 100%; max-width: 320px; height: 50px; margin: 0 auto; }

@media (min-width: 768px) {
    .ad-adsense--desktop { display: flex; }
    .ad-adsense--mobile { display: none; }
}

/* Main */
.main-content { flex: 1; padding: 1.5rem 1rem 3rem; }

.page-header { margin-bottom: 1.5rem; }
.page-header h1 { margin: 0 0 .35rem; font-size: 1.6rem; }
.page-header p { color: var(--color-text-muted); margin: 0; }

/* Hero (homepage) */
.hero { text-align: center; padding: 2rem 1rem 1rem; }
.hero h1 { font-size: 2rem; margin: 0 0 .5rem; }
.hero p { color: var(--color-text-muted); font-size: 1.05rem; max-width: 640px; margin: 0 auto; }

/* Category / grid */
.category { margin-top: 2.5rem; }
.category h2 {
    font-size: 1.25rem;
    margin: 0 0 1rem;
    padding-bottom: .5rem;
    border-bottom: 2px solid var(--color-border);
}
.tool-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}
@media (min-width: 640px) {
    .tool-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
    .tool-grid { grid-template-columns: repeat(3, 1fr); }
}

.tool-card {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
    transition: transform .15s ease, box-shadow .15s ease;
    color: var(--color-text);
}
.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}
.tool-card__icon { font-size: 1.8rem; }
.tool-card__name { font-weight: 700; font-size: 1.05rem; }
.tool-card__desc { color: var(--color-text-muted); font-size: .9rem; margin: 0; }

.tool-card--soon {
    opacity: .65;
    cursor: default;
}
.tool-card--soon:hover { transform: none; box-shadow: var(--shadow); }
.tool-card__badge {
    align-self: flex-start;
    font-size: .65rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    background: var(--color-border);
    color: var(--color-text-muted);
    padding: .15rem .5rem;
    border-radius: 999px;
}

/* Generic tool panel styling shared by tool pages */
.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
}

.tabs {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}
.tab-btn {
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    padding: .55rem 1rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: .9rem;
    cursor: pointer;
}
.tab-btn.is-active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.field { margin-bottom: 1rem; }
.field label {
    display: block;
    font-weight: 600;
    font-size: .85rem;
    margin-bottom: .35rem;
    color: var(--color-text-muted);
}
.field input[type="number"],
.field input[type="text"],
.field select {
    width: 100%;
    padding: .6rem .7rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--color-surface);
    color: var(--color-text);
}
.field-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    border: 1px solid var(--color-primary);
    background: var(--color-primary);
    color: #fff;
    padding: .65rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
}
.btn:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn--ghost {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn--ghost:hover { background: var(--color-bg); }
.btn--danger { background: #dc2626; border-color: #dc2626; }
.btn--danger:hover { background: #b91c1c; }
.btn-row { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1rem; }

.display {
    font-variant-numeric: tabular-nums;
    font-size: clamp(2.5rem, 12vw, 4.5rem);
    font-weight: 700;
    text-align: center;
    padding: 1rem 0;
    letter-spacing: .02em;
}

.laps { list-style: none; margin: 0; padding: 0; }
.laps li {
    display: flex;
    justify-content: space-between;
    padding: .5rem .25rem;
    border-bottom: 1px solid var(--color-border);
    font-variant-numeric: tabular-nums;
}
.laps li:first-child { font-weight: 700; }

.result-box {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1rem;
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
    word-break: break-word;
}

.code-box {
    display: flex;
    align-items: center;
    gap: .6rem;
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 8px;
    padding: .85rem 1rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 1.1rem;
    overflow-x: auto;
}
.code-box code { flex: 1; }
.code-box .btn { flex-shrink: 0; padding: .4rem .8rem; font-size: .85rem; }

.natural-preview {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e3a8a;
    border-radius: 8px;
    padding: .85rem 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.hint { color: var(--color-text-muted); font-size: .85rem; margin-top: .5rem; }

.legal h2 { margin-top: 2rem; font-size: 1.15rem; }
.legal p, .legal li { color: var(--color-text); }
.legal { max-width: 760px; }

/* Footer */
.site-footer {
    background: #0f172a;
    color: #cbd5e1;
    margin-top: 3rem;
}
.site-footer__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2.5rem 1rem 1.5rem;
}
@media (min-width: 720px) {
    .site-footer__inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.site-footer .site-logo { color: #fff; }
.site-footer__col h3 {
    color: #fff;
    font-size: .9rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    margin: 0 0 .75rem;
}
.site-footer__col ul { list-style: none; margin: 0; padding: 0; }
.site-footer__col li { margin-bottom: .45rem; }
.site-footer__col a { color: #cbd5e1; }
.site-footer__col a:hover { color: #fff; }
.site-footer p { font-size: .85rem; }
.site-footer__bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding: 1rem;
    font-size: .8rem;
    text-align: center;
}

/* Cookie banner */
.cookie-banner {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 16px rgba(15,23,42,.1);
    z-index: 50;
    padding: 1rem;
}
.cookie-banner__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
}
.cookie-banner__inner p { margin: 0; font-size: .85rem; flex: 1 1 320px; }
.cookie-banner__actions { display: flex; gap: .6rem; }

@media (max-width: 480px) {
    .field-row { grid-template-columns: 1fr; }
}

/* CronTool: accounts, forms, dashboard */
.form { display: flex; flex-direction: column; gap: .9rem; max-width: 440px; }
.form label { font-weight: 600; font-size: .85rem; color: var(--color-text-muted); }
.form input[type="text"],
.form input[type="email"],
.form input[type="password"],
.form input[type="number"],
.form input[type="url"],
.form select,
.form textarea {
    width: 100%;
    padding: .6rem .7rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--color-surface);
    color: var(--color-text);
    font-family: inherit;
}
.form__hint { color: var(--color-text-muted); font-size: .8rem; margin: -.5rem 0 0; }
.checkbox-label { display: flex; gap: .5rem; align-items: flex-start; font-size: .85rem; color: var(--color-text-muted); }
.checkbox-label input { margin-top: .2rem; }
.inline-form { display: inline-block; margin: .5rem .5rem 0 0; }

.alert { padding: .85rem 1rem; border-radius: 8px; margin-bottom: 1.25rem; font-size: .9rem; }
.alert p { margin: 0; }
.alert--success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
.alert--error { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.alert--warn { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }

.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.25rem; margin-bottom: 1.25rem; }
.card h2 { margin-top: 0; font-size: 1.1rem; }

.balance { font-size: 2rem; font-weight: 700; margin: .25rem 0 1rem; }

.table { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: .9rem; }
.table th, .table td { text-align: left; padding: .6rem .5rem; border-bottom: 1px solid var(--color-border); }
.table th { color: var(--color-text-muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
.table td.truncate { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.badge { display: inline-block; padding: .15rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 600; background: var(--color-border); color: var(--color-text-muted); }
.badge--ok { background: #dcfce7; color: #166534; }
.badge--warn { background: #fef3c7; color: #92400e; }
.badge--error { background: #fee2e2; color: #991b1b; }

.wizard-step h2 { font-size: 1.15rem; margin-top: 0; }