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

:root {
    --color-primary: #ed1c24;
    /* Repsol red */
    --color-primary-dark: #b5121a;
    --color-primary-light: #fce8e8;
    --color-secondary: #1a2a3a;
    --color-accent: #f5a623;
    --color-bg: #f8fafc;
    --color-text: #0b1a2a;
    --color-text-light: #4a5a6a;
    --color-white: #ffffff;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --radius: 20px;
    --radius-sm: 12px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    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%;
    display: block;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== TYPOGRAPHY ===== */
.section__tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 4px 14px;
    border-radius: 100px;
    margin-bottom: 12px;
}

.section__title {
    font-size: clamp(2rem, 5vw, 2.8rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section__title .accent {
    color: var(--color-primary);
}

.section__sub {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 600px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font);
    font-weight: 600;
    font-size: 1rem;
    padding: 12px 28px;
    border-radius: 60px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn--primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(237, 28, 36, 0.30);
}

.btn--outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-text);
}

.btn--outline:hover {
    background: var(--color-text);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn--block {
    display: flex;
    width: 100%;
    justify-content: center;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 12px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
}

.logo__mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 10px;
    font-weight: 800;
    font-size: 0.9rem;
}

.logo__text {
    letter-spacing: -0.02em;
}

.nav__list {
    display: flex;
    gap: 28px;
    font-weight: 500;
    font-size: 0.95rem;
}

.nav__list a {
    transition: var(--transition);
    color: var(--color-text-light);
}

.nav__list a:hover {
    color: var(--color-primary);
}

.nav__list a,
.nav__list a:visited,
.nav__list a:active {
    color: var(--color-text-light);
}


/* ===== HERO ===== */
.hero {
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff 0%, #f0f4f8 100%);
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero__badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 20px;
}

.hero__title {
    font-size: clamp(2.6rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero__highlight {
    color: var(--color-primary);
    position: relative;
}

.hero__desc {
    font-size: 1.15rem;
    color: var(--color-text-light);
    max-width: 480px;
    margin-bottom: 32px;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.hero__visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.hero__orb {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--color-primary-light), var(--color-primary));
    opacity: 0.3;
    position: absolute;
    animation: float 8s ease-in-out infinite;
}

.hero__orb--small {
    width: 160px;
    height: 160px;
    opacity: 0.2;
    animation-delay: -3s;
    background: radial-gradient(circle at 30% 30%, #f5a623, #ed1c24);
}

@keyframes float {
    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(20px, -30px) scale(1.05);
    }
}

/* ===== APPS ===== */
.apps {
    padding: 80px 0 100px;
}

.section__header {
    text-align: center;
    margin-bottom: 56px;
}

.section__header .section__sub {
    margin: 0 auto;
}

.apps__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 40px;
}

.app-card {
    background: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 8px 30px var(--color-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.app-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.10);
}

.app-card__image {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #eef2f6;
}

.app-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.app-card:hover .app-card__image img {
    transform: scale(1.03);
}

.app-card__badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--color-secondary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 4px 14px;
    border-radius: 100px;
}

.app-card__body {
    padding: 28px 28px 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.app-card__title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.app-card__desc {
    color: var(--color-text-light);
    margin-bottom: 18px;
    flex: 1;
}

.app-card__features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 12px;
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.app-card__features li {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-text-light);
}

/* ===== ABOUT ===== */
.about {
    padding: 80px 0;
    background: var(--color-white);
}

.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about__text {
    margin-bottom: 16px;
    color: var(--color-text-light);
    font-size: 1.05rem;
}

.about__social {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-bg);
    font-size: 1.4rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-3px);
}

.about__avatar {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: 800;
    margin: 0 auto;
    box-shadow: 0 20px 50px rgba(237, 28, 36, 0.25);
}

/* ===== CONTACT ===== */
.contact {
    padding: 80px 0 100px;
    background: var(--color-secondary);
    color: #fff;
}

.contact__inner {
    text-align: center;
}

.contact .section__tag {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.contact .section__title {
    color: #fff;
}

.contact__text {
    font-size: 1.1rem;
    opacity: 0.8;
    max-width: 500px;
    margin: 0 auto 32px;
}

.contact .btn--primary {
    background: #fff;
    color: var(--color-secondary);
}

.contact .btn--primary:hover {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 12px 28px rgba(237, 28, 36, 0.40);
}

/* ===== FOOTER ===== */
.footer {
    padding: 28px 0;
    background: var(--color-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

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

.footer__links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer__links a {
    transition: var(--transition);
    color: rgba(255, 255, 255, 0.6);
}

.footer__links a:hover {
    color: #fff;
}

.footer__sep {
    opacity: 0.3;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .hero__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__visual {
        min-height: 200px;
    }

    .hero__orb {
        width: 200px;
        height: 200px;
    }

    .hero__orb--small {
        width: 120px;
        height: 120px;
    }

    .about__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about__social {
        justify-content: center;
    }

    .about__avatar {
        width: 150px;
        height: 150px;
        font-size: 3rem;
    }
}

@media (max-width: 640px) {
    .header__inner {
        flex-direction: column;
        gap: 8px;
    }

    .nav__list {
        gap: 16px;
        font-size: 0.85rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero__title {
        font-size: 2rem;
    }

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

    .app-card__features {
        grid-template-columns: 1fr;
    }

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

    .section__title {
        font-size: 1.8rem;
    }
}