/* ── Theme: based on SibmainMiners logo ── */
:root {
    --sm-orange: #e8611a;
    --sm-orange-dark: #c7510f;
    --sm-orange-light: #fff4ed;
    --sm-navy: #1a2332;
    --sm-navy-light: #2c3a4e;
    --sm-gold: #f5a623;
    --sm-gold-light: #fdf3e0;
    --sm-muted: #6b7a8d;
    --sm-line: #e2e8f0;
    --sm-bg: #f8f9fb;
    --sm-paper: #ffffff;
    --sm-shadow: 0 8px 30px rgba(26, 35, 50, 0.07);
    --sm-shadow-lg: 0 18px 40px rgba(26, 35, 50, 0.1);
    --bs-primary: #e8611a;
    --bs-primary-rgb: 232, 97, 26;
}

/* ── Bootstrap overrides ── */
.btn-primary {
    background-color: var(--sm-orange);
    border-color: var(--sm-orange);
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--sm-orange-dark);
    border-color: var(--sm-orange-dark);
}
.btn-outline-primary {
    color: var(--sm-orange);
    border-color: var(--sm-orange);
}
.btn-outline-primary:hover {
    background-color: var(--sm-orange);
    border-color: var(--sm-orange);
    color: #fff;
}
.text-primary { color: var(--sm-orange) !important; }
a { color: var(--sm-orange); }
a:hover { color: var(--sm-orange-dark); }

.btn-check:checked + .btn-primary, .btn-primary:active {
    background-color: var(--sm-orange-dark);
    border-color: var(--sm-orange-dark);
}

body {
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--sm-bg);
    color: var(--sm-navy);
}

/* ── Header ── */
.site-header {
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--sm-line);
    z-index: 1030;
}

.brand-logo {
    height: 44px;
    width: auto;
}

.navbar-nav .nav-link {
    color: var(--sm-navy);
    font-size: 15px;
    font-weight: 500;
    padding: 10px 14px !important;
    border-radius: 8px;
    transition: all 0.2s;
}
.navbar-nav .nav-link:hover {
    color: var(--sm-orange);
    background: var(--sm-orange-light);
}
.navbar-nav .nav-link.active {
    color: var(--sm-orange) !important;
    background: var(--sm-orange-light);
}

.header-btn-login {
    border-color: var(--sm-line) !important;
    color: var(--sm-navy) !important;
    font-weight: 600;
    padding: 6px 16px !important;
}
.header-btn-login:hover {
    border-color: var(--sm-orange) !important;
    color: var(--sm-orange) !important;
    background: var(--sm-orange-light) !important;
}

.header-btn-register {
    background: var(--sm-orange) !important;
    border-color: var(--sm-orange) !important;
    color: #fff !important;
    font-weight: 600;
    padding: 6px 16px !important;
    box-shadow: 0 2px 8px rgba(232,97,26,0.25);
}
.header-btn-register:hover {
    background: var(--sm-orange-dark) !important;
    border-color: var(--sm-orange-dark) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(232,97,26,0.35);
}

/* ── Hero ── */
.hero-section {
    padding: 48px 0 40px;
}

.hero-frame {
    border-radius: 24px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--sm-navy) 0%, var(--sm-navy-light) 50%, #3a4f68 100%);
    box-shadow: var(--sm-shadow-lg);
}

.hero-copy h1 {
    font-size: clamp(2.2rem, 4.5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.08;
    color: #fff;
    letter-spacing: -0.02em;
}

.hero-copy .lead {
    color: rgba(255,255,255,0.8);
    font-size: 1.05rem;
}

img.hero-media {
    width: 100%;
    height: 100%;
    min-height: 420px;
    object-fit: cover;
    display: block;
}

@media (max-width: 991.98px) {
    .hero-section { padding: 28px 0 20px; }
    img.hero-media {
        min-height: 240px;
        height: auto;
    }
    .hero-copy h1 {
        font-size: 1.8rem;
    }
    .hero-copy .lead {
        font-size: 0.95rem;
    }
}

.brand-strip {
    font-size: 16px;
    font-weight: 700;
    color: rgba(255,255,255,0.7);
    letter-spacing: -0.02em;
}

.btn-hero {
    background: var(--sm-orange);
    border: none;
    color: #fff;
    padding: 14px 36px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 4px 16px rgba(232,97,26,0.3);
    transition: all 0.25s;
}
.btn-hero:hover {
    background: var(--sm-orange-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(232,97,26,0.4);
}

/* ── Cards (generic) ── */
.card-sm {
    background: var(--sm-paper);
    border: 1px solid var(--sm-line);
    border-radius: 20px;
    box-shadow: var(--sm-shadow);
    transition: transform 0.25s, box-shadow 0.25s;
}
.card-sm:hover {
    transform: translateY(-4px);
    box-shadow: var(--sm-shadow-lg);
}

/* ── Metric cards ── */
.metric-card {
    background: var(--sm-paper);
    border: 1px solid var(--sm-line);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--sm-shadow);
    text-align: center;
}
.metric-card strong {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--sm-orange);
    margin-bottom: 6px;
}
.metric-card span {
    color: var(--sm-muted);
    font-size: 14px;
}

/* ── Feature cards ── */
.feature-card {
    background: var(--sm-paper);
    border: 1px solid var(--sm-line);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--sm-shadow);
    transition: transform 0.25s, box-shadow 0.25s;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sm-shadow-lg);
}
.feature-card h3 {
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--sm-navy);
}
.feature-card p {
    color: var(--sm-muted);
    margin-bottom: 0;
    line-height: 1.7;
}

/* ── Product cards ── */
.product-card {
    background: var(--sm-paper);
    border: 1px solid var(--sm-line);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--sm-shadow);
    transition: transform 0.25s, box-shadow 0.25s;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sm-shadow-lg);
}
.product-card img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    background: #f0e8dc;
}
.product-card__body {
    padding: 22px;
}

.product-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--sm-orange-light);
    color: var(--sm-orange);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.product-card h2, .product-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--sm-navy);
    margin-bottom: 12px;
}

.spec-list {
    list-style: none;
    margin: 12px 0 0;
    padding: 0;
}
.spec-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-top: 1px solid var(--sm-line);
    color: var(--sm-muted);
    font-size: 14px;
}
.spec-list li strong {
    color: var(--sm-navy);
}

.price {
    margin-top: 14px;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--sm-orange);
}

.text-link {
    display: inline-block;
    margin-top: 12px;
    color: var(--sm-orange);
    font-weight: 700;
    font-size: 14px;
    transition: color 0.2s;
}
.text-link:hover {
    color: var(--sm-orange-dark);
}

/* ── Section styling ── */
.eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 12px;
    font-weight: 700;
    color: var(--sm-orange);
    margin-bottom: 12px;
}

.section-block {
    padding: 48px 0;
}

.section-tint {
    background: linear-gradient(180deg, var(--sm-orange-light) 0%, rgba(255,255,255,0) 100%);
}

.page-hero {
    padding: 40px 0 20px;
}
.page-hero h1 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    color: var(--sm-navy);
    letter-spacing: -0.02em;
}
.page-hero p {
    color: var(--sm-muted);
    max-width: 640px;
}

/* ── Contact card ── */
.contact-card {
    background: var(--sm-paper);
    border: 1px solid var(--sm-line);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--sm-shadow);
}
.contact-card h2 {
    font-weight: 700;
    margin-bottom: 14px;
}
.contact-card p {
    color: var(--sm-muted);
    line-height: 1.7;
}

/* ── CTA box ── */
.cta-box {
    background: var(--sm-paper);
    border: 1px solid var(--sm-line);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--sm-shadow);
}
.cta-box p {
    color: var(--sm-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

/* ── Gallery images ── */
.gallery-img {
    border-radius: 16px;
    object-fit: cover;
    width: 100%;
    box-shadow: var(--sm-shadow);
}

/* ── Footer ── */
.site-footer {
    background: var(--sm-paper);
}
.footer-links li {
    margin-bottom: 8px;
}
.footer-links a {
    color: var(--sm-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}
.footer-links a:hover {
    color: var(--sm-orange);
}
.footer-links li {
    font-size: 14px;
    color: var(--sm-muted);
}

/* ── Auth pages ── */
.auth-page {
    background: linear-gradient(135deg, var(--sm-bg) 0%, var(--sm-orange-light) 50%, var(--sm-bg) 100%);
    min-height: 100vh;
}

.auth-section {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 40px 16px;
}

select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7a8d' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}
select.form-input:invalid,
select.form-input option[value=""] {
    color: #b0b8c9;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--sm-paper);
    border: 1px solid var(--sm-line);
    border-radius: 24px;
    box-shadow: var(--sm-shadow-lg);
    padding: 44px 40px 40px;
}

.auth-card__header {
    text-align: center;
    margin-bottom: 28px;
}

.auth-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--sm-orange-light);
    color: var(--sm-orange);
    margin-bottom: 16px;
}

.auth-card__header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 6px;
    color: var(--sm-navy);
}
.auth-card__header p {
    margin: 0;
    color: var(--sm-muted);
    font-size: 14.5px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--sm-navy);
}

.form-input {
    width: 100%;
    height: 46px;
    padding: 0 16px;
    border: 1.5px solid var(--sm-line);
    border-radius: 12px;
    background: #fff;
    font: inherit;
    font-size: 15px;
    color: var(--sm-navy);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}
.form-input:focus {
    border-color: var(--sm-orange);
    box-shadow: 0 0 0 3px rgba(232,97,26,0.1);
}
.form-input::placeholder { color: #b0b8c9; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-extras {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.form-check-custom {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    color: var(--sm-muted);
    cursor: pointer;
}
.form-check-custom input[type="checkbox"] {
    width: 16px; height: 16px;
    accent-color: var(--sm-orange);
    cursor: pointer;
}

.form-link {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--sm-orange);
}
.form-link:hover { color: var(--sm-orange-dark); }

.auth-submit {
    height: 48px;
    border: none;
    border-radius: 12px;
    background: var(--sm-orange);
    color: #fff;
    font: inherit;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.22s;
    box-shadow: 0 2px 10px rgba(232,97,26,0.25);
}
.auth-submit:hover {
    background: var(--sm-orange-dark);
    box-shadow: 0 4px 18px rgba(232,97,26,0.35);
    transform: translateY(-1px);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--sm-muted);
    font-size: 13px;
    margin: 20px 0;
}
.auth-divider::before, .auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--sm-line);
}

.auth-social {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    border: 1.5px solid var(--sm-line);
    border-radius: 12px;
    background: #fff;
    font: inherit;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--sm-navy);
    cursor: pointer;
    transition: all 0.2s;
}
.social-btn:hover {
    border-color: var(--sm-orange);
    box-shadow: 0 2px 8px rgba(232,97,26,0.08);
}

.auth-footer {
    text-align: center;
    margin-top: 22px;
    font-size: 14px;
    color: var(--sm-muted);
}
.auth-footer a {
    color: var(--sm-orange);
    font-weight: 700;
}
.auth-footer a:hover { color: var(--sm-orange-dark); }

/* ── Responsive: Auth ── */
@media (max-width: 767.98px) {
    .auth-section {
        padding: 24px 12px;
        min-height: auto;
    }
    .auth-card {
        max-width: 100%;
        padding: 28px 20px 24px;
        border-radius: 18px;
    }
    .auth-card__header h1 { font-size: 1.3rem; }
    .form-row { grid-template-columns: 1fr; }
    .auth-social { grid-template-columns: 1fr; }
    .form-extras { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ── Responsive: Hero ── */
@media (max-width: 575.98px) {
    .hero-section { padding: 20px 0 16px; }
    .hero-frame { border-radius: 16px; }
    .hero-copy { padding: 24px 18px !important; }
    .hero-copy h1 { font-size: 1.6rem; }
    .btn-hero { padding: 12px 28px; font-size: 14px; }
    .metric-card { padding: 16px; }
    .metric-card strong { font-size: 1.4rem; }
    .section-block { padding: 32px 0; }
    .feature-card { padding: 20px; }
    .product-card__body { padding: 16px; }
}