/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #1a3a5c;
    --color-primary-dark: #0f2640;
    --color-accent: #e8a723;
    --color-accent-hover: #d4951a;
    --color-bg: #f0f2f5;
    --color-white: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #5a6a7a;
    --color-border: #dce1e8;
    --color-card-bg: #ffffff;
    --color-footer-bg: #1a2332;
    --color-footer-text: #b0bec5;
    --color-success: #27ae60;
    --radius: 8px;
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.14);
    --transition: 0.25s ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ===== Header ===== */
.header {
    background: var(--color-primary-dark);
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-white);
    font-weight: 700;
    font-size: 1.15rem;
}

.header__logo-icon {
    color: var(--color-accent);
    font-size: 1.4rem;
}

.header__nav {
    display: flex;
    gap: 20px;
}

.header__nav-link {
    color: var(--color-footer-text);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
}

.header__nav-link:hover,
.header__nav-link--active {
    color: var(--color-white);
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 48px 0 40px;
    text-align: center;
}

.hero__title {
    color: var(--color-white);
    font-size: 1.65rem;
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.3;
}

.hero__subtitle {
    color: rgba(255,255,255,0.8);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}

/* ===== Section Title ===== */
.section-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 32px;
}

/* ===== Offers Grid ===== */
.offers {
    padding: 48px 0;
}

.offers__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

/* ===== Offer Card ===== */
.offer-card {
    background: var(--color-card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    border: 2px solid var(--color-border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.offer-card:hover {
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-accent);
    transform: translateY(-3px);
}

.offer-card__header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 20px 0;
}

.offer-card__logo-wrap {
    width: 56px;
    height: 56px;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
}

.offer-card__logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
}

.offer-card__logo-fallback {
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.offer-card__name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.offer-card__body {
    padding: 16px 20px;
    flex-grow: 1;
}

.offer-card__conditions {
    margin-bottom: 10px;
}

.offer-card__conditions li {
    font-size: 0.9rem;
    color: var(--color-text);
    padding: 3px 0;
    padding-left: 16px;
    position: relative;
}

.offer-card__conditions li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
}

.offer-card__desc {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

.offer-card__footer {
    padding: 0 20px 20px;
}

.offer-card__btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #f0b830 100%);
    color: var(--color-primary-dark);
    font-weight: 700;
    font-size: 1rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
    box-shadow: 0 3px 12px rgba(232, 167, 35, 0.3);
    letter-spacing: 0.02em;
}

.offer-card__btn:hover {
    background: linear-gradient(135deg, var(--color-accent-hover) 0%, var(--color-accent) 100%);
    box-shadow: 0 5px 20px rgba(232, 167, 35, 0.45);
    transform: translateY(-1px);
}

.offer-card__btn:active {
    transform: translateY(0);
}

/* ===== How It Works ===== */
.how-it-works {
    padding: 48px 0;
    background: var(--color-white);
}

.steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    text-align: center;
    padding: 24px 20px;
}

.step__number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 1.3rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
}

.step__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

.step__text {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* ===== Calc Section (homepage) ===== */
.calc-section {
    padding: 48px 0;
    background: var(--color-white);
}

.calc-section__intro {
    text-align: center;
    font-size: 0.92rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: -16px auto 32px;
    line-height: 1.6;
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 32px;
}

.calc-card {
    background: var(--color-bg);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--color-border);
}

.calc-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 4px;
}

.calc-card__subtitle {
    font-size: 0.82rem;
    color: var(--color-text-light);
    margin-bottom: 12px;
}

.calc-card .calc-table {
    margin: 0;
    font-size: 0.84rem;
}

.calc-card .calc-table td {
    padding: 7px 10px;
}

.calc-formula {
    background: #fef9ee;
    border-left: 4px solid var(--color-accent);
    padding: 20px 24px;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.calc-formula p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: 6px;
}

.calc-formula__note {
    margin-top: 8px;
    font-size: 0.84rem !important;
    color: var(--color-text-light) !important;
}

.calc-formula__note a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: underline;
}

.calc-formula__note a:hover {
    color: var(--color-accent);
}

@media (min-width: 600px) {
    .calc-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 960px) {
    .calc-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

/* ===== Footer ===== */
.footer {
    background: var(--color-footer-bg);
    padding: 40px 0 0;
    color: var(--color-footer-text);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
}

.footer__heading {
    color: var(--color-white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer__text {
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 8px;
}

.footer__link {
    color: var(--color-footer-text);
    transition: color var(--transition);
    font-size: 0.88rem;
}

.footer__link:hover {
    color: var(--color-accent);
}

.footer__links li {
    margin-bottom: 8px;
}

.footer__disclaimer {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
}

.footer__disclaimer p {
    font-size: 0.8rem;
    line-height: 1.7;
    color: rgba(176, 190, 197, 0.8);
}

.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 16px 0;
    text-align: center;
}

.footer__bottom p {
    font-size: 0.78rem;
    color: rgba(176, 190, 197, 0.5);
}

/* ===== Tablet (2 columns) ===== */
@media (min-width: 600px) {
    .container {
        padding: 0 24px;
    }

    .hero {
        padding: 60px 0 50px;
    }

    .hero__title {
        font-size: 2rem;
    }

    .offers__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .steps {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== Desktop (4 columns for cards, 3-col footer) ===== */
@media (min-width: 960px) {
    .hero__title {
        font-size: 2.4rem;
    }

    .hero__subtitle {
        font-size: 1.1rem;
    }

    .offers__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

@media (min-width: 1200px) {
    .offers__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===== Privacy Page Styles ===== */
.page-content {
    padding: 40px 0 60px;
}

.page-content h1 {
    font-size: 1.6rem;
    color: var(--color-primary-dark);
    margin-bottom: 24px;
    font-weight: 800;
}

.page-content h2 {
    font-size: 1.25rem;
    color: var(--color-primary-dark);
    margin-top: 32px;
    margin-bottom: 14px;
    font-weight: 700;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-border);
}

.page-content h3 {
    font-size: 1.05rem;
    color: var(--color-primary);
    margin-top: 20px;
    margin-bottom: 10px;
    font-weight: 600;
}

.page-content p {
    font-size: 0.92rem;
    line-height: 1.7;
    margin-bottom: 12px;
    color: var(--color-text);
}

.page-content ul,
.page-content ol {
    padding-left: 24px;
    margin-bottom: 14px;
}

.page-content li {
    font-size: 0.92rem;
    line-height: 1.7;
    margin-bottom: 6px;
    color: var(--color-text);
}

.page-content ul li {
    list-style: disc;
}

.page-content ol li {
    list-style: decimal;
}

.calc-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0 24px;
    font-size: 0.88rem;
}

.calc-table th,
.calc-table td {
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    text-align: left;
}

.calc-table th {
    background: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
}

.calc-table tr:nth-child(even) {
    background: #f7f9fb;
}

.calc-table td {
    color: var(--color-text);
}

.highlight-box {
    background: #fef9ee;
    border-left: 4px solid var(--color-accent);
    padding: 16px 20px;
    margin: 16px 0;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.highlight-box p {
    margin-bottom: 4px;
    font-size: 0.9rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.92rem;
    margin-bottom: 20px;
    transition: color var(--transition);
}

.back-link:hover {
    color: var(--color-accent);
}

/* Responsive table */
@media (max-width: 599px) {
    .calc-table {
        font-size: 0.78rem;
    }
    .calc-table th,
    .calc-table td {
        padding: 7px 8px;
    }
}