:root {
    --primary: #155E75;
    --primary-dark: #0F4D60;
    --secondary: #14B8A6;
    --accent: #6EE7B7;
    --background: #F8FAFC;
    --surface: #FFFFFF;
    --border: #E2E8F0;
    --text: #1E293B;
    --text-muted: #64748B;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    font-family: Inter, Segoe UI, sans-serif;
}

.container {
    width: 100%;
    max-width: 1180px;
    margin: auto;
    padding: 0 24px;
}
/* =====================
   NAVBAR
===================== */

.navbar-custom {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #E2E8F0;
}

.navbar-content {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #155E75;
    font-weight: 700;
    font-size: 1.1rem;
}

.navbar-logo {
    width: 38px;
    height: 38px;
    object-fit: contain;
}

.navbar-links {
    display: flex;
    gap: 32px;
}

    .navbar-links a {
        text-decoration: none;
        color: #64748B;
        font-weight: 500;
        transition: .2s;
    }

        .navbar-links a:hover {
            color: #155E75;
        }

.navbar-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.nav-login {
    color: #155E75;
    text-decoration: none;
    font-weight: 600;
}

.nav-register {
    background: #155E75;
    color: white;
    text-decoration: none;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 600;
    transition: .2s;
}

    .nav-register:hover {
        background: #0F4D60;
        color: white;
    }

/* =====================
   FOOTER
===================== */

.footer-custom {
    border-top: 1px solid #E2E8F0;
    background: white;
    padding: 24px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: #155E75;
}

.footer-logo {
    width: 28px;
    height: 28px;
}

@media (max-width: 768px) {

    .navbar-links {
        display: none;
    }

    .footer-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}
/* =====================
   HERO
===================== */

.hero {
    padding: 80px 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.hero-image {
    flex: 1;
}

.hero-badge {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 999px;
    background: #E8F8F5;
    color: var(--primary);
    font-size: .9rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 800;
    max-width: 600px;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero p {
    max-width: 540px;
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-muted);
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.btn-primary-custom {
    background: var(--primary);
    color: white;
    text-decoration: none;
    padding: 14px 26px;
    border-radius: 14px;
    font-weight: 600;
    transition: .25s;
}

    .btn-primary-custom:hover {
        background: var(--primary-dark);
    }

.btn-outline-custom {
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    padding: 14px 26px;
    border-radius: 14px;
    font-weight: 600;
}

.hero-features {
    margin-top: 32px;
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 14px;
    color: var(--text-muted);
    font-size: .95rem;
}

/* =====================
   HERO IMAGE
===================== */

.hero-image-wrapper {
    position: relative;
    background: #EAF6F6;
    border-radius: 30px;
    padding: 18px;
}

    .hero-image-wrapper img {
        width: 100%;
        border-radius: 24px;
        display: block;
    }

.pet-card {
    position: absolute;
    bottom: 40px;
    left: 10px;
    background: white;
    border-radius: 18px;
    padding: 16px;
    min-width: 160px;
    box-shadow: 0 10px 25px rgba(0,0,0,.08);
}

    .pet-card strong {
        display: block;
    }

    .pet-card span {
        display: block;
        font-size: .85rem;
        color: var(--text-muted);
    }

    .pet-card small {
        color: #10B981;
        font-weight: 600;
    }

.vaccine-card {
    position: absolute;
    top: 25px;
    right: -15px;
    background: white;
    border-radius: 18px;
    padding: 16px;
    min-width: 140px;
    box-shadow: 0 10px 25px rgba(0,0,0,.08);
}

    .vaccine-card strong {
        display: block;
        margin-bottom: 6px;
    }

    .vaccine-card span {
        display: block;
        color: var(--text-muted);
    }

/* =====================
   SECTIONS
===================== */

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

    .section-header h2 {
        font-size: 2.7rem;
        margin-bottom: 12px;
    }

    .section-header p {
        color: var(--text-muted);
        max-width: 700px;
        margin: auto;
        line-height: 1.7;
    }

/* =====================
   BENEFITS
===================== */

.benefits {
    padding: 100px 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 24px;
}

.benefit-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 30px;
    transition: .25s;
}

    .benefit-card:hover {
        transform: translateY(-4px);
    }

.icon {
    width: 54px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #EEF8F7;
    border-radius: 14px;
    font-size: 1.4rem;
    margin-bottom: 18px;
}

.benefit-card h3 {
    margin-bottom: 12px;
}

.benefit-card p {
    color: var(--text-muted);
    line-height: 1.7;
}

/* =====================
   HOW IT WORKS
===================== */

.how-it-works {
    padding: 100px 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 40px;
    text-align: center;
}

.step-card {
    position: relative;
}

.step-number {
    width: 32px;
    height: 32px;
    margin: auto auto 20px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.step-icon {
    width: 64px;
    height: 64px;
    margin: auto;
    border-radius: 18px;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.step-card h3 {
    margin-top: 24px;
}

.step-card p {
    color: var(--text-muted);
    line-height: 1.7;
}

/* =====================
   CTA
===================== */

.cta-section {
    background: var(--primary);
    color: white;
    padding: 90px 0;
    text-align: center;
}

    .cta-section h2 {
        font-size: 3rem;
        margin-bottom: 12px;
    }

    .cta-section p {
        color: rgba(255,255,255,.85);
        margin-bottom: 35px;
    }

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 18px;
}

.btn-light {
    background: white;
    color: var(--primary);
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 14px;
    font-weight: 700;
}

.btn-outline-light {
    border: 1px solid rgba(255,255,255,.4);
    color: white;
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 14px;
}

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

@media (max-width: 992px) {

    .hero-content {
        flex-direction: column;
    }

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

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 640px) {

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .hero-features {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .cta-buttons {
        flex-direction: column;
    }
}