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

:root {
    --red: #E63946;
    --red-hover: #D32F3F;
    --coral: #FF6B6B;
    --coral-glow: rgba(255, 107, 107, 0.08);
    --navy: #0F172A;
    --navy-light: #1E293B;
    --body-text: #475569;
    --muted: #64748B;
    --light-bg: #F8FAFC;
    --white: #FFFFFF;
    --border: #E2E8F0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--body-text);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    height: 64px;
    display: flex;
    align-items: center;
}

.nav::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #E63946, #FF6B6B);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--red);
    letter-spacing: -0.03em;
}

.nav-logo sup {
    font-size: 0.35rem;
    vertical-align: super;
    font-weight: 500;
    color: var(--red);
    margin-left: 1px;
    opacity: 0.6;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted);
    transition: color 0.2s var(--transition);
}

.nav-links a:hover {
    color: var(--navy);
}

.nav-cta {
    background: linear-gradient(135deg, #E63946, #FF6B6B);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 100px;
    font-weight: 600 !important;
    font-size: 0.875rem;
    transition: box-shadow 0.3s var(--transition), transform 0.2s var(--transition);
}

.nav-cta:hover {
    box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
    transform: translateY(-1px);
    color: var(--white) !important;
}

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--navy);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.active span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.nav-mobile {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 24px;
    flex-direction: column;
    gap: 16px;
    z-index: 999;
}

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

.nav-mobile a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--body-text);
    padding: 8px 0;
}

.nav-mobile .nav-cta {
    display: inline-block;
    text-align: center;
    margin-top: 8px;
}

/* ===== BUTTONS ===== */
.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, #E63946, #FF6B6B);
    color: var(--white);
    padding: 14px 32px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: box-shadow 0.3s var(--transition), transform 0.2s var(--transition);
}

.btn-primary:hover {
    box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
    transform: translateY(-2px);
    color: var(--white);
}

.btn-secondary {
    display: inline-block;
    background: var(--white);
    color: var(--red);
    padding: 14px 32px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid var(--red);
    cursor: pointer;
    transition: all 0.3s var(--transition);
}

.btn-secondary:hover {
    background: var(--red);
    color: var(--white);
}

/* ===== SECTIONS ===== */
.section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--navy);
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--muted);
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
    line-height: 1.6;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--light-bg);
    border-top: 1px solid var(--border);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 48px;
}

.footer-col h4 {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--navy);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 0.875rem;
    color: var(--muted);
    margin-bottom: 10px;
    transition: color 0.2s;
}

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

.footer-subscribe {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.footer-subscribe input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

.footer-subscribe input:focus {
    border-color: var(--red);
}

.footer-subscribe button {
    background: linear-gradient(135deg, #E63946, #FF6B6B);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: box-shadow 0.3s;
    font-family: inherit;
}

.footer-subscribe button:hover {
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--muted);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    font-size: 0.8rem;
    color: var(--muted);
    transition: color 0.2s;
}

.footer-legal a:hover {
    color: var(--red);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }

    .section { padding: 56px 0; }
    .section-title { font-size: 1.75rem; }
    .section-subtitle { font-size: 1rem; }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}