/* ============================================================
   RussoNobile — Public Design System
   ============================================================ */

/* --- Design Tokens --- */
:root {
    --bg: #f7f5f2;
    --bg-dark: #0c1829;
    --bg-card: #ffffff;
    --text: #0b0b0b;
    --muted: #6b7280;
    --line: #e0ddd8;
    --accent: #c6271a;
    --accent-soft: rgba(198, 39, 26, 0.08);
    --gold: #b8976a;
    --gold-soft: rgba(184, 151, 106, 0.10);
    --shadow-1: 0 2px 12px rgba(0, 0, 0, 0.06);
    --shadow-2: 0 12px 40px rgba(0, 0, 0, 0.10);
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-pill: 999px;
    --transition: 150ms ease;
}

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

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Manrope', sans-serif;
    line-height: 1.2;
}

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

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

button {
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    border: none;
    background: none;
}

input, select, textarea {
    font-family: 'Inter', sans-serif;
}

/* --- Layout --- */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 96px;
}

/* Content wrapper — constrains inner content while backgrounds stay full-width */
.content-wrap {
    max-width: 1440px;
    margin: 0 auto;
}

/* --- Section Labels --- */
.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 20px;
}

/* --- Buttons --- */
.btn-main {
    padding: 16px 36px;
    border-radius: var(--radius-md);
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.2px;
    transition: opacity var(--transition), transform var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-main:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-outline {
    padding: 16px 32px;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--line);
    font-size: 15px;
    font-weight: 500;
    transition: border-color var(--transition), color var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-dark {
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    background: var(--text);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: opacity var(--transition);
}

.btn-dark:hover {
    opacity: 0.85;
}

/* --- Form Elements --- */
.form-field {
    margin-bottom: 16px;
}

.form-field label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-md);
    font-size: 15px;
    color: var(--text);
    background: var(--bg);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
    color: var(--muted);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ============================================================
   NAV BAR
   ============================================================ */
.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    height: 72px;
    background: rgba(247, 245, 242, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.nav-bar-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 64px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: 'Manrope', sans-serif;
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -0.5px;
    color: var(--text);
}

.nav-logo span {
    color: var(--accent);
}

.nav-center {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links {
    display: flex;
    gap: 36px;
}

.nav-links a {
    font-size: 13px;
    font-weight: 500;
    color: var(--muted);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-lang {
    display: flex;
    gap: 4px;
}

.nav-lang a {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    color: var(--muted);
    transition: color var(--transition), background var(--transition);
}

.nav-lang a.active {
    color: var(--text);
    background: rgba(0, 0, 0, 0.05);
}

.nav-lang a:hover:not(.active) {
    color: var(--text);
}

/* Burger */
.nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    cursor: pointer;
}

.nav-burger-line {
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 1px;
    transition: transform var(--transition), opacity var(--transition);
}

.nav-burger-line:last-child {
    width: 14px;
}

.nav-burger.active .nav-burger-line:first-child {
    transform: translateY(7px) rotate(45deg);
}

.nav-burger.active .nav-burger-line:nth-child(2) {
    opacity: 0;
}

.nav-burger.active .nav-burger-line:last-child {
    width: 20px;
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu overlay */
.nav-mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    z-index: 99;
    padding: 32px 24px;
    flex-direction: column;
    gap: 0;
}

.nav-mobile-menu.active {
    display: flex;
}

.nav-mobile-menu a {
    display: block;
    padding: 16px 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    border-bottom: 1px solid var(--line);
}

.nav-mobile-menu .nav-mobile-lang {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.nav-mobile-menu .nav-mobile-lang a {
    border-bottom: none;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1.5px solid var(--line);
    color: var(--muted);
}

.nav-mobile-menu .nav-mobile-lang a.active {
    background: var(--text);
    color: #fff;
    border-color: var(--text);
}

.nav-mobile-cta {
    margin-top: auto;
    padding: 16px;
    border-radius: var(--radius-md);
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    border-top: 1px solid var(--line);
}

.footer-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 64px 96px 48px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-brand {
    max-width: 280px;
}

.footer-brand .nav-logo {
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--text);
    margin-bottom: 10px;
    transition: color var(--transition);
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px 96px;
    font-size: 12px;
    color: var(--muted);
    display: flex;
    justify-content: space-between;
}

.footer-bottom a {
    color: var(--muted);
    transition: color var(--transition);
}

.footer-bottom a:hover {
    color: var(--text);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
    .container {
        padding: 0 40px;
    }

    .nav-bar-inner {
        padding: 0 40px;
    }

    .footer-inner {
        padding: 48px 40px 32px;
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-brand {
        grid-column: 1 / -1;
        max-width: 100%;
    }

    .footer-bottom {
        padding: 24px 40px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .nav-bar-inner {
        padding: 0 20px;
    }

    .nav-bar {
        height: 60px;
    }

    .nav-links,
    .nav-lang,
    .nav-bar .btn-dark {
        display: none;
    }

    .nav-burger {
        display: flex;
    }

    .nav-mobile-menu.active + .nav-bar .nav-burger .nav-burger-line:last-child {
        width: 20px;
    }

    .footer-inner {
        padding: 40px 20px 32px;
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-bottom {
        padding: 20px;
        flex-direction: column;
        align-items: center;
        gap: 8px;
        text-align: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .btn-main,
    .btn-outline {
        padding: 15px 24px;
        font-size: 14px;
    }
}