/* =============================================
   ElecPort — Design System & Main Stylesheet
   ============================================= */

:root {
    --color-primary: #2563EB;
    --color-primary-dark: #1D4ED8;
    --color-primary-light: #DBEAFE;
    --color-success: #16A34A;
    --color-danger: #DC2626;
    --color-warning: #F59E0B;
    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-text: #1E293B;
    --color-text-muted: #64748B;
    --color-border: #E2E8F0;
    --color-accent: #F59E0B;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
    --transition: 150ms ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* =============================================
   Buttons
   ============================================= */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 10px 20px; border: 1px solid transparent; border-radius: var(--radius);
    font-size: 14px; font-weight: 500; cursor: pointer; transition: all var(--transition);
    text-decoration: none; gap: 6px;
}
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn--success { background: var(--color-success); color: #fff; }
.btn--success:hover { background: #15803D; }
.btn--danger { background: var(--color-danger); color: #fff; }
.btn--danger:hover { background: #B91C1C; }
.btn--outline { background: transparent; border-color: var(--color-border); color: var(--color-text); }
.btn--outline:hover { background: var(--color-bg); border-color: var(--color-primary); }
.btn--block { display: flex; width: 100%; }
.btn--sm { padding: 6px 12px; font-size: 13px; }
.btn--lg { padding: 14px 28px; font-size: 16px; }

/* =============================================
   Header
   ============================================= */
.header {
    background: var(--color-surface); border-bottom: 1px solid var(--color-border);
    position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow);
}
.header__inner { display: flex; align-items: center; height: 60px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 8px; color: var(--color-text); font-weight: 700; font-size: 20px; text-decoration: none; }
.logo__icon { font-size: 24px; }
.logo__text { letter-spacing: -0.5px; }

.search-bar { flex: 1; max-width: 500px; position: relative; }
.search-bar__form { display: flex; }
.search-bar__input {
    flex: 1; padding: 8px 14px; border: 1px solid var(--color-border); border-radius: var(--radius) 0 0 var(--radius);
    font-size: 14px; outline: none;
}
.search-bar__input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); }
.search-bar__btn {
    padding: 8px 16px; background: var(--color-primary); border: none; color: #fff;
    border-radius: 0 var(--radius) var(--radius) 0; cursor: pointer; font-size: 16px;
}
.search-bar__suggestions {
    position: absolute; top: 100%; left: 0; right: 0; background: var(--color-surface);
    border: 1px solid var(--color-border); border-top: none; border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow-lg); z-index: 50;
}
.search-bar__suggestion { display: block; padding: 8px 14px; color: var(--color-text); border-bottom: 1px solid var(--color-border); }
.search-bar__suggestion:hover { background: var(--color-primary-light); }
.search-bar__suggestion:last-child { border-bottom: none; }

.header__nav { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.header__link { color: var(--color-text-muted); font-size: 14px; white-space: nowrap; }
.header__link:hover { color: var(--color-primary); }
.header__link--accent { color: var(--color-primary); font-weight: 600; }

/* =============================================
   Hero
   ============================================= */
.hero {
    background: linear-gradient(135deg, #1E3A5F 0%, #2563EB 50%, #3B82F6 100%);
    color: #fff; padding: 60px 20px; text-align: center;
}
.hero__title { font-size: 36px; font-weight: 800; margin-bottom: 12px; letter-spacing: -1px; }
.hero__subtitle { font-size: 18px; opacity: .85; margin-bottom: 24px; }
.hero__search {
    display: flex; max-width: 600px; margin: 0 auto; gap: 0;
}
.hero__search-input {
    flex: 1; padding: 14px 18px; border: none; border-radius: var(--radius) 0 0 var(--radius);
    font-size: 16px; outline: none;
}
.hero__tags { margin-top: 20px; font-size: 13px; opacity: .7; }
.hero__tags a { color: rgba(255,255,255,.9); margin: 0 4px; text-decoration: underline; }
.hero__tags a:hover { color: #fff; }

/* =============================================
   Sections & Cards
   ============================================= */
.section { padding: 48px 0; }
.section--bg { background: var(--color-surface); }
.section__title { font-size: 24px; font-weight: 700; margin-bottom: 24px; }
.section__more { text-align: center; margin-top: 24px; }

.company-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; }
.company-card {
    display: flex; flex-direction: column; align-items: center; padding: 20px;
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); text-decoration: none; color: var(--color-text);
    transition: all var(--transition);
}
.company-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.company-card__logo { width: 48px; height: 48px; border-radius: var(--radius); object-fit: contain; margin-bottom: 8px; }
.company-card__logo-placeholder {
    width: 48px; height: 48px; border-radius: var(--radius); background: var(--color-primary-light);
    color: var(--color-primary); display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 18px; margin-bottom: 8px;
}
.company-card__name { font-weight: 600; text-align: center; font-size: 14px; }
.company-card__rating { color: var(--color-accent); font-size: 13px; }

.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.news-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 16px;
}
.news-card__company { font-size: 12px; color: var(--color-text-muted); margin-bottom: 4px; }
.news-card h3 { font-size: 16px; margin-bottom: 4px; }
.news-card h3 a { color: var(--color-text); }
.news-card__date { font-size: 12px; color: var(--color-text-muted); }

.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
.feature-card { text-align: center; padding: 24px; }
.feature-card__icon { font-size: 36px; margin-bottom: 12px; }
.feature-card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-card p { color: var(--color-text-muted); font-size: 14px; }

/* =============================================
   Search Results
   ============================================= */
.page-title { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.page-subtitle { color: var(--color-text-muted); margin-bottom: 24px; }

.search-filters { margin-bottom: 20px; display: flex; gap: 16px; align-items: center; }
.search-filters__form { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.filter__select { padding: 6px 12px; border: 1px solid var(--color-border); border-radius: var(--radius); }

.search-result-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 16px; margin-bottom: 12px;
    transition: all var(--transition);
}
.search-result-card:hover { box-shadow: var(--shadow); }
.search-result-card--highlighted {
    border-left: 4px solid var(--highlight-color, var(--color-accent));
    background: color-mix(in srgb, var(--highlight-color, #FFF3CD) 8%, #fff);
}
.search-result-card__header { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.search-result-card__company { font-size: 13px; color: var(--color-text-muted); display: flex; align-items: center; gap: 6px; }
.search-result-card__name { font-size: 16px; font-weight: 600; color: var(--color-text); display: block; margin-bottom: 4px; }
.search-result-card__info { font-size: 13px; color: var(--color-text-muted); display: flex; gap: 16px; margin-bottom: 8px; }
.search-result-card__footer { display: flex; justify-content: space-between; align-items: center; }
.search-result-card__price { font-size: 18px; font-weight: 700; color: var(--color-primary); }
.search-result-card__price small { font-size: 13px; font-weight: 400; color: var(--color-text-muted); }
.search-result-card__stock { font-size: 13px; font-weight: 500; }
.stock--yes { color: var(--color-success); }
.stock--no { color: var(--color-text-muted); }

/* Badges */
.badge {
    display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600;
    background: var(--color-primary-light); color: var(--color-primary);
}
.badge--featured { background: #FEF3C7; color: #92400E; }
.badge--primary { background: var(--color-primary-light); color: var(--color-primary); }
.badge--warning { background: #FEF3C7; color: #92400E; }
.badge--danger { background: #FEE2E2; color: #991B1B; }
.badge--success { background: #DCFCE7; color: #166534; }
.badge--info { background: #DBEAFE; color: #1E40AF; }

/* Alerts */
.alert {
    padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; font-size: 14px;
    border: 1px solid transparent;
}
.alert--success { background: #DCFCE7; border-color: #BBF7D0; color: #166534; }
.alert--error { background: #FEE2E2; border-color: #FECACA; color: #991B1B; }
.alert--info { background: #DBEAFE; border-color: #BFDBFE; color: #1E40AF; }
.alert--warning { background: #FEF3C7; border-color: #FDE68A; color: #92400E; }

/* Pagination */
.pagination { display: flex; justify-content: center; align-items: center; gap: 16px; margin-top: 24px; }
.pagination__info { font-size: 14px; color: var(--color-text-muted); }

/* Breadcrumbs */
.breadcrumbs { font-size: 13px; color: var(--color-text-muted); margin-bottom: 20px; }
.breadcrumbs a { color: var(--color-text-muted); }
.breadcrumbs span { color: var(--color-text); }

/* =============================================
   Product Detail
   ============================================= */
.product-detail { display: grid; grid-template-columns: 1fr 320px; gap: 32px; }
.product-detail__title { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.product-detail__info { margin-bottom: 20px; }
.product-detail__row { display: flex; gap: 8px; margin-bottom: 6px; font-size: 14px; }
.product-detail__price { margin: 20px 0; }
.price-value { font-size: 28px; font-weight: 800; color: var(--color-primary); }
.price-unit { font-size: 16px; color: var(--color-text-muted); }
.product-detail__description { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--color-border); }
.product-detail__description h3 { margin-bottom: 8px; }

.seller-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 20px; position: sticky; top: 80px;
}
.seller-card h3 { font-size: 16px; margin-bottom: 12px; }
.seller-card__name { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 16px; font-weight: 600; }
.seller-card__tariff { font-size: 12px; color: var(--color-text-muted); margin-bottom: 16px; }
.seller-card--featured { border-color: var(--color-accent); }

/* =============================================
   Catalog
   ============================================= */
.company-list { display: flex; flex-direction: column; gap: 12px; }
.company-list-card {
    display: flex; align-items: center; gap: 16px; padding: 16px;
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); transition: all var(--transition);
}
.company-list-card:hover { box-shadow: var(--shadow); }
.company-list-card__logo img, .company-list-card__logo-placeholder {
    width: 48px; height: 48px; border-radius: var(--radius); object-fit: contain;
}
.company-list-card__logo-placeholder {
    background: var(--color-primary-light); color: var(--color-primary);
    display: flex; align-items: center; justify-content: center; font-weight: 700;
}
.company-list-card__info { flex: 1; }
.company-list-card__info h3 { font-size: 16px; }
.company-list-card__rating { color: var(--color-accent); font-size: 13px; }

/* =============================================
   Company Page
   ============================================= */
.company-page__header { display: flex; gap: 20px; align-items: center; margin-bottom: 24px; }
.company-page__logo img { border-radius: var(--radius); }
.company-page__logo-placeholder {
    width: 80px; height: 80px; border-radius: var(--radius);
    background: var(--color-primary-light); color: var(--color-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; font-weight: 700;
}
.company-page__body { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.company-page__description { margin-top: 24px; }
.company-page__contacts { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--color-border); }
.company-page__news { margin-top: 32px; }
.company-page__news h2 { margin-bottom: 16px; }

/* =============================================
   News List & Detail
   ============================================= */
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-list-card {
    display: flex; gap: 16px; padding: 16px; background: var(--color-surface);
    border: 1px solid var(--color-border); border-radius: var(--radius);
}
.news-list-card__image { width: 120px; height: 80px; object-fit: cover; border-radius: var(--radius); }
.news-list-card__content { flex: 1; }
.news-list-card__meta { display: flex; gap: 12px; margin-bottom: 4px; font-size: 13px; color: var(--color-text-muted); }
.news-list-card h2 { font-size: 18px; }

.news-detail { max-width: 800px; }
.news-detail h1 { font-size: 28px; margin-bottom: 12px; }
.news-detail__meta { display: flex; gap: 16px; margin-bottom: 20px; font-size: 14px; color: var(--color-text-muted); }
.news-detail__image { width: 100%; max-height: 400px; object-fit: cover; border-radius: var(--radius-lg); margin-bottom: 24px; }
.news-detail__content { font-size: 16px; line-height: 1.8; }

/* =============================================
   Auth
   ============================================= */
.auth-page { background: linear-gradient(135deg, #1E3A5F, #2563EB); min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.auth-container { width: 100%; max-width: 440px; padding: 20px; }
.auth-card {
    background: var(--color-surface); border-radius: var(--radius-lg); padding: 32px;
    box-shadow: var(--shadow-lg);
}
.auth-logo { display: block; text-align: center; font-size: 24px; font-weight: 700; color: var(--color-text); margin-bottom: 24px; text-decoration: none; }
.auth-card h1 { font-size: 22px; margin-bottom: 20px; }
.auth-card p { color: var(--color-text-muted); font-size: 14px; margin-bottom: 16px; }
.auth-form { margin-top: 12px; }
.auth-links { margin-top: 16px; text-align: center; font-size: 13px; display: flex; justify-content: space-between; }

/* =============================================
   Dashboard Layout
   ============================================= */
.dashboard { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px; background: #1E293B; color: #CBD5E1; display: flex; flex-direction: column;
    position: sticky; top: 0; height: 100vh; flex-shrink: 0;
}
.sidebar__logo { display: block; padding: 20px; color: #fff; font-size: 18px; font-weight: 700; text-decoration: none; border-bottom: 1px solid #334155; }
.sidebar__nav { flex: 1; padding: 12px 0; }
.sidebar__link {
    display: block; padding: 10px 20px; color: #94A3B8; text-decoration: none; font-size: 14px;
    transition: all var(--transition);
}
.sidebar__link:hover { color: #fff; background: rgba(255,255,255,.05); }
.sidebar__link--active { color: #fff; background: rgba(37,99,235,.3); border-right: 3px solid var(--color-primary); }
.sidebar__footer { padding: 16px 20px; border-top: 1px solid #334155; }
.sidebar__user { font-size: 13px; color: #94A3B8; }
.sidebar__logout { display: block; margin-top: 8px; color: #94A3B8; font-size: 13px; }
.sidebar__logout:hover { color: #fff; }

.dashboard__content {
    flex: 1; padding: 24px 32px; max-width: 1100px; overflow-x: auto;
}
.dashboard__welcome { font-size: 18px; color: var(--color-text-muted); margin-bottom: 24px; }
.dashboard__card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 20px; margin-bottom: 20px;
}
.dashboard__card h2 { font-size: 18px; margin-bottom: 12px; }

/* =============================================
   Stats Grid
   ============================================= */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.stat-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 20px; text-align: center;
}
.stat-card--warning { border-left: 4px solid var(--color-warning); }
.stat-card__value { font-size: 32px; font-weight: 800; color: var(--color-primary); }
.stat-card__label { font-size: 13px; color: var(--color-text-muted); margin-top: 4px; }

/* =============================================
   Forms
   ============================================= */
.form { max-width: 600px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; color: var(--color-text-muted); }
.form-control {
    width: 100%; padding: 9px 12px; border: 1px solid var(--color-border);
    border-radius: var(--radius); font-size: 14px; font-family: inherit;
    transition: border-color var(--transition);
}
.form-control:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); }
.form-control--sm { padding: 6px 10px; font-size: 13px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
textarea.form-control { resize: vertical; }

/* =============================================
   Tables
   ============================================= */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--color-border); }
.table th { font-weight: 600; font-size: 12px; text-transform: uppercase; color: var(--color-text-muted); letter-spacing: .5px; }
.table tbody tr:hover { background: var(--color-bg); }
.row--error { background: #FEF2F2; }

/* =============================================
   Tabs
   ============================================= */
.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--color-border); padding-bottom: 0; }
.tab {
    padding: 8px 16px; text-decoration: none; color: var(--color-text-muted);
    font-size: 14px; font-weight: 500; border-bottom: 2px solid transparent;
    margin-bottom: -2px; transition: all var(--transition);
}
.tab:hover { color: var(--color-primary); }
.tab--active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* =============================================
   Subscription Cards
   ============================================= */
.subscription-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.subscription-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 24px; display: flex; flex-direction: column;
}
.subscription-card--vip { border-color: var(--color-accent); box-shadow: 0 0 0 2px var(--color-accent); }
.subscription-card__header { margin-bottom: 12px; }
.subscription-card__header h3 { font-size: 20px; }
.subscription-card__price { font-size: 32px; font-weight: 800; color: var(--color-primary); margin-bottom: 16px; }
.subscription-card__price small { font-size: 14px; font-weight: 400; color: var(--color-text-muted); }
.subscription-card__features { list-style: none; flex: 1; }
.subscription-card__features li { padding: 6px 0; font-size: 14px; border-bottom: 1px solid var(--color-border); }
.subscription-card__features li:last-child { border-bottom: none; }
.subscription-card__actions { margin-top: 16px; }

/* =============================================
   Invoice
   ============================================= */
.invoice {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); max-width: 700px;
}
.invoice__header {
    display: flex; justify-content: space-between; align-items: flex-start;
    padding: 24px; border-bottom: 1px solid var(--color-border);
}
.invoice__status { font-size: 14px; font-weight: 600; }
.invoice__body { padding: 24px; }
.invoice__row { display: flex; justify-content: space-between; padding: 8px 0; font-size: 14px; }
.invoice__row--total { margin-top: 16px; padding-top: 16px; border-top: 2px solid var(--color-border); font-size: 16px; font-weight: 700; }
.invoice__amount { color: var(--color-primary); font-size: 20px; }
.invoice__footer { padding: 24px; border-top: 1px solid var(--color-border); font-size: 13px; color: var(--color-text-muted); }

/* =============================================
   Progress Bar
   ============================================= */
.progress-bar { width: 100%; height: 8px; background: var(--color-border); border-radius: 999px; overflow: hidden; }
.progress-bar__fill { height: 100%; background: var(--color-primary); border-radius: 999px; transition: width .3s; }

/* =============================================
   Utilities
   ============================================= */
.flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.label { font-size: 13px; color: var(--color-text-muted); }
.empty-state { text-align: center; padding: 48px 20px; color: var(--color-text-muted); }
.load-more { text-align: center; padding: 16px; }
.detail-rows div { padding: 4px 0; font-size: 14px; }

/* =============================================
   Footer
   ============================================= */
.footer {
    background: #1E293B; color: #94A3B8; padding: 40px 0 20px; margin-top: 48px;
}
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.footer__grid h4 { color: #fff; margin-bottom: 12px; font-size: 16px; }
.footer__grid p { font-size: 13px; }
.footer__grid a { display: block; color: #94A3B8; font-size: 13px; padding: 3px 0; }
.footer__grid a:hover { color: #fff; }
.footer__bottom { margin-top: 24px; padding-top: 16px; border-top: 1px solid #334155; text-align: center; font-size: 12px; }

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 768px) {
    .product-detail { grid-template-columns: 1fr; }
    .company-page__body { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .subscription-cards { grid-template-columns: 1fr; }
    .footer__grid { grid-template-columns: 1fr; }
    .header__inner { flex-wrap: wrap; height: auto; padding: 10px 0; }
    .search-bar { max-width: none; order: 3; width: 100%; }
    .dashboard { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: static; }
    .dashboard__content { padding: 16px; }
    .hero__title { font-size: 24px; }
    .hero__search { flex-direction: column; gap: 8px; }
    .hero__search-input { border-radius: var(--radius); }
    .hero__search .btn { border-radius: var(--radius); }
}