/* ===== ROOT VARIABLES ===== */
:root {
    --bg: #f3f5f9;
    --surface: #ffffff;
    --bg-muted: #eef2f8;
    --text: #0b1220;
    --muted: #55637a;
    --primary: #2563eb;
    --border: rgba(15, 23, 42, 0.12);
    --border-soft: rgba(148, 163, 184, 0.32);
    --r-md: 16px;
    --r-lg: 24px;
    --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 20px 50px rgba(15, 23, 42, 0.12);
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --bg-0: var(--bg);
    --bg-1: var(--surface);
    --panel: #0f172a;
    --text-0: var(--text);
    --text-1: #334155;
    --primary-2: #1d4ed8;
    --accent: #14b8a6;
    --success: #16a34a;
    --warning: #f59e0b;
    --danger: #ef4444;
    --primary-dark: #1d4ed8;
    --secondary: #4f46e5;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --light: #f8fafc;
    --light-gray: #e2e8f0;
    --gray: var(--muted);
    --radius: var(--radius-md);
    --radius-sm: 12px;
    --radius-md: var(--r-md);
    --radius-lg: var(--r-lg);
    --shadow-1: var(--shadow-sm);
    --shadow-2: var(--shadow-md);
    --container: 1200px;
    --container-wide: 1560px;
    --container-narrow: 860px;
    --container-pad-mobile: 16px;
    --container-pad-tablet: 24px;
    --container-pad-desktop: 32px;
    --bp-mobile: 640px;
    --bp-tablet: 1024px;
    --bp-desktop: 1280px;
    --sectionY: clamp(56px, 6vw, 96px);
    --gap: clamp(14px, 2vw, 26px);
    --h1: clamp(2.6rem, 4.6vw, 3.8rem);
    --h2: clamp(2rem, 3.4vw, 2.8rem);
    --body: clamp(1rem, 1.2vw, 1.12rem);
    --transition: 180ms ease;
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 50%, #38bdf8 100%);
    --gradient-dark: linear-gradient(135deg, #0b1220 0%, #0f172a 100%);
    --shadow: var(--shadow-1);
    --shadow-lg: var(--shadow-2);
    --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #2563eb 50%, #38bdf8 100%);
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: clip;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    font-size: var(--body);
}

body.menu-open {
    overflow: hidden;
}

a {
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

svg,
video,
canvas,
iframe,
table,
pre,
code {
    max-width: 100%;
}

p,
h1,
h2,
h3,
h4,
h5,
h6,
li,
a,
span,
dd,
dt,
td,
th {
    overflow-wrap: anywhere;
    word-break: break-word;
}

input,
textarea,
select {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 11px 12px;
    font-family: inherit;
    font-size: 1rem;
    background: var(--surface);
    color: var(--text);
    min-height: 44px;
}

.input,
.select,
.textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 11px 12px;
    font-family: inherit;
    font-size: 1rem;
    background: var(--surface);
    color: var(--text);
    min-height: 44px;
}

.input:focus,
.select:focus,
.textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.textarea {
    min-height: 120px;
    resize: vertical;
}

.container {
    width: 100%;
    max-width: min(100%, var(--container-wide));
    margin: 0 auto;
    padding: 0 var(--container-pad-mobile);
}

.container-fluid {
    width: 100%;
    max-width: min(100%, var(--container-wide));
    margin: 0 auto;
    padding: 0 var(--container-pad-mobile);
}

@media (min-width: 640px) {
    .container,
    .container-fluid {
        padding: 0 var(--container-pad-tablet);
    }
}

@media (min-width: 1024px) {
    .container,
    .container-fluid {
        padding: 0 var(--container-pad-desktop);
    }
}

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

section {
    padding: var(--sectionY) 0;
}

.section {
    padding: var(--sectionY) 0;
}

.section-muted {
    background: var(--bg-muted);
}

.stack {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
}

.stack-lg {
    display: flex;
    flex-direction: column;
    gap: calc(var(--gap) * 1.5);
}

.grid {
    display: grid;
    gap: var(--gap);
}

.card {
    background: var(--surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    padding: clamp(18px, 2.4vw, 28px);
    position: relative;
}

.card-soft {
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: clamp(18px, 2.2vw, 26px);
}

.card-muted {
    background: #f8fafc;
    border-radius: var(--radius-md);
    border: 1px solid rgba(148, 163, 184, 0.3);
    box-shadow: var(--shadow-sm);
    padding: clamp(18px, 2.2vw, 26px);
}

.card-outline {
    background: transparent;
    border-radius: var(--radius-md);
    border: 1px dashed rgba(148, 163, 184, 0.6);
    padding: clamp(18px, 2.2vw, 26px);
}

.card-header {
    padding: 24px 24px 0;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 0 24px 24px;
}

.card-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--accent);
    color: white;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid transparent;
}

.badge-soft {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-color: rgba(37, 99, 235, 0.2);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 10px 18px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    min-height: 44px;
    background: var(--surface);
    color: var(--text);
    text-decoration: none;
    position: relative;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 28px rgba(37, 99, 235, 0.28);
}

.btn-secondary {
    background: #0f172a;
    color: #fff;
    border-color: #0f172a;
}

.btn-secondary:hover {
    background: #111827;
    border-color: #111827;
}

.btn-outline {
    background: transparent;
    border-color: rgba(37, 99, 235, 0.4);
    color: var(--primary);
}

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.08);
}

.btn-ghost {
    background: transparent;
    color: var(--text-0);
    border-color: transparent;
}

.btn-ghost:hover {
    background: rgba(15, 23, 42, 0.06);
}

.btn-light {
    background: rgba(15, 23, 42, 0.06);
    border-color: transparent;
}

.btn-light:hover {
    background: rgba(15, 23, 42, 0.12);
}

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: 8px 14px;
    font-size: 0.9rem;
}

.btn.is-loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn.is-loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid rgba(148, 163, 184, 0.5);
    border-top-color: rgba(37, 99, 235, 0.9);
    animation: spin 0.8s linear infinite;
}

.progress-bar {
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.25);
    overflow: hidden;
}

.progress-bar__fill {
    display: block;
    height: 100%;
    width: 0%;
    border-radius: inherit;
    background: var(--gradient-primary);
    transition: width 0.35s ease;
}

.skeleton-target {
    position: relative;
    display: inline-flex;
    min-width: 80px;
    border-radius: 10px;
}

.is-loading .skeleton-target {
    color: transparent !important;
    background: rgba(226, 232, 240, 0.9);
    overflow: hidden;
}

.is-loading .skeleton-target[data-skeleton-ready="1"] {
    color: inherit !important;
    background: transparent;
}

.is-loading .skeleton-target[data-skeleton-ready="1"]::after {
    content: none;
}

.is-loading .skeleton-target::after {
    content: '';
    position: absolute;
    inset: 0;
    transform: translateX(-120%);
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    animation: shimmer 1.2s infinite;
}

.skeleton-block {
    display: block;
    min-height: 12px;
    min-width: 120px;
    border-radius: 10px;
}

@keyframes shimmer {
    100% {
        transform: translateX(120%);
    }
}

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

.status-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 6px 12px;
    font-weight: 600;
    font-size: 0.8rem;
    background: rgba(15, 23, 42, 0.08);
}

.status-chip.success { background: rgba(22, 163, 74, 0.12); color: #15803d; }
.status-chip.danger { background: rgba(239, 68, 68, 0.12); color: #b91c1c; }
.status-chip.info { background: rgba(37, 99, 235, 0.12); color: #1d4ed8; }

.text-muted { color: var(--muted); }

.hero-section {
    position: relative;
    background: radial-gradient(circle at top, rgba(37, 99, 235, 0.15), transparent 60%),
        linear-gradient(120deg, rgba(99, 102, 241, 0.08), transparent 50%);
    padding-top: clamp(24px, 4vw, 40px);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
}

.hero-content h1 {
    font-size: var(--h1);
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero-info {
    max-width: clamp(40rem, 46vw, 54rem);
    display: grid;
    gap: 14px;
    margin-bottom: 20px;
}

.hero-lead {
    font-size: 1.05rem;
    line-height: 1.65;
    color: rgba(51, 65, 85, 0.9);
    margin: 0;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.hero-badges .badge {
    min-height: 36px;
    padding: 8px 14px;
    align-items: center;
}

.hero-badges .badge-soft {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.16);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin: 0;
}

.hero-note {
    color: var(--muted);
    display: block;
    margin-bottom: 16px;
}

.hero-points {
    display: grid;
    gap: 10px;
}

.hero-point {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.hero-point i {
    color: var(--accent);
}

.hero-quick {
    margin-top: 20px;
    display: grid;
    gap: 12px;
}

.hero-quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.section-title {
    text-align: center;
    margin-bottom: clamp(24px, 3vw, 40px);
}

.section-title h2 {
    font-size: var(--h2);
    margin-bottom: 12px;
}

.features-grid,
.tools-preview-grid,
.trust-grid,
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gap);
}

.feature-card,
.tool-preview-card,
.step-card,
.trust-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: clamp(18px, 2vw, 26px);
    box-shadow: var(--shadow-sm);
}

.feature-icon {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.feature-icon-soft {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.16), rgba(20, 184, 166, 0.14));
    color: #1d4ed8;
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.08);
}


.trust-card {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.trust-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(20, 184, 166, 0.12);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-card {
    position: relative;
}

.step-index {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 12px;
}

.tools-preview-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: center;
    margin-top: 28px;
}

.pricing-preview {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gap);
}

.pricing-card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 24px;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    display: grid;
    gap: 16px;
}

.pricing-card.is-highlight {
    border-color: rgba(37, 99, 235, 0.4);
    box-shadow: 0 22px 45px rgba(37, 99, 235, 0.18);
}

.pricing-card-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
    font-size: 1.6rem;
}

.pricing-card-list {
    display: grid;
    gap: 10px;
    list-style: none;
}

.pricing-card-list i {
    color: var(--accent);
    margin-right: 8px;
}

.cta-banner {
    background: var(--gradient-dark);
    color: white;
    border-radius: var(--radius-lg);
    padding: clamp(26px, 4vw, 40px);
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
    justify-content: space-between;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.connection-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(37, 99, 235, 0.15);
    padding: 24px;
    box-shadow: var(--shadow-md);
}

.connection-card.is-loading {
    opacity: 0.7;
    pointer-events: none;
}

.connection-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 0;
}

.connection-header h3 {
    margin: 0;
}

.connection-ip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: rgba(37, 99, 235, 0.08);
    border-radius: 16px;
    padding: 12px 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.connection-ip > div {
    min-width: 0;
}

.connection-ip span {
    word-break: break-word;
}

.connection-kpis {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.connection-kpis .kpi {
    background: rgba(15, 23, 42, 0.04);
    border-radius: 14px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 96px;
    gap: 6px;
}

.connection-kpis .kpi-value {
    display: inline-block;
    min-width: 5.2ch;
    font-variant-numeric: tabular-nums;
}

.connection-kpis strong {
    display: inline-flex;
    align-items: baseline;
    min-width: 10ch;
    font-variant-numeric: tabular-nums;
}

.kpi-unit {
    white-space: nowrap;
}

.connection-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 12px;
}

.connection-progress--header {
    margin-top: 10px;
    margin-bottom: 14px;
}

.connection-step-progress {
    --step-accent: rgba(37, 99, 235, 0.95);
    --step-muted: rgba(148, 163, 184, 0.45);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.connection-step {
    position: relative;
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.connection-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 10px;
    left: calc(50% + 14px);
    width: calc(100% - 28px);
    height: 2px;
    border-radius: 999px;
    background: var(--step-muted);
    transition: background 0.25s ease;
}

.connection-step__dot {
    width: 22px;
    height: 22px;
    border-radius: 999px;
    border: 2px solid rgba(148, 163, 184, 0.65);
    background: var(--surface);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.62rem;
    color: rgba(100, 116, 139, 0.95);
    transition: all 0.25s ease;
}

.connection-step__dot .fa-check {
    display: none;
}

.connection-step__label {
    font-size: 0.74rem;
    color: var(--muted);
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
}

.connection-step.is-active .connection-step__dot {
    border-color: rgba(37, 99, 235, 0.95);
    color: rgba(37, 99, 235, 0.95);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
    animation: connection-step-pulse 1.2s ease-in-out infinite;
}

.connection-step.is-active .connection-step__label {
    color: rgba(30, 64, 175, 0.95);
}

.connection-step.is-complete .connection-step__dot {
    border-color: rgba(37, 99, 235, 0.95);
    background: var(--gradient-primary);
    color: white;
    box-shadow: none;
    animation: none;
}

.connection-step.is-complete .connection-step__dot .fa-check {
    display: inline-block;
}

.connection-step.is-complete .connection-step__dot .fa-globe,
.connection-step.is-complete .connection-step__dot .fa-gauge-high,
.connection-step.is-complete .connection-step__dot .fa-tower-broadcast {
    display: none;
}

.connection-step.is-complete .connection-step__label {
    color: var(--text);
}

.connection-step.is-complete:not(:last-child)::after,
.connection-step.is-active:not(:last-child)::after {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.9), rgba(59, 130, 246, 0.55));
}

.connection-step-progress.is-complete .connection-step__dot {
    animation: none;
}

@keyframes connection-step-pulse {
    0%,
    100% {
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    }
    50% {
        box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.2);
    }
}

.connection-actions .btn {
    width: 100%;
    justify-content: center;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.connection-error-box {
    border: 1px solid rgba(239, 68, 68, 0.35);
    background: rgba(239, 68, 68, 0.08);
    border-radius: 14px;
    padding: 12px 14px;
    display: grid;
    gap: 8px;
    margin-bottom: 12px;
    color: #b91c1c;
}

.connection-error-meta,
.connection-error-trace {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.connection-error-title {
    font-weight: 600;
}

.connection-error-trace code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
    font-size: 0.85rem;
    color: inherit;
}

.connection-status {
    font-weight: 600;
    margin-bottom: 6px;
}

.connection-error {
    color: var(--danger);
}

.connection-hint {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.4;
}


@media (max-width: 560px) {
    .connection-step-progress {
        flex-wrap: wrap;
        row-gap: 8px;
    }

    .connection-step {
        flex: 1 1 calc(33.333% - 8px);
    }

    .connection-step:not(:last-child)::after {
        width: calc(100% - 24px);
        left: calc(50% + 12px);
    }

    .connection-step__label {
        font-size: 0.7rem;
    }
}