/* ============================================================
   Landing desi.marchernandez.es
   Paleta institucional UCAM · responsive (mobile-first)
   ============================================================ */

:root {
    --ucam-blue: #1F3A5F;
    --ucam-blue-dark: #15263F;
    --ucam-blue-light: #3F6FAA;
    --ucam-gold: #C7A33A;
    --ucam-gold-light: #E6CE82;
    --ucam-green: #0E7C66;
    --ucam-red: #A02C2C;

    --grey-50: #F8F9FB;
    --grey-100: #EDEFF3;
    --grey-200: #DFE3EB;
    --grey-300: #C8CDD6;
    --grey-500: #7A8497;
    --grey-700: #3F4757;
    --grey-900: #1A1F2A;

    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.10);
    --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.18);

    --radius-sm: 8px;
    --radius:    14px;
    --radius-lg: 22px;

    --container: 1180px;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
    --font-serif: Georgia, "Times New Roman", "Iowan Old Style", serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: #fff;
    color: var(--grey-900);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a {
    color: var(--ucam-blue);
    text-decoration: none;
}
a:hover { color: var(--ucam-blue-light); }

h1, h2, h3 {
    font-family: var(--font-serif);
    color: var(--ucam-blue);
    letter-spacing: -0.01em;
    margin: 0 0 0.5em;
    line-height: 1.18;
}

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

.muted { color: var(--grey-500); }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--grey-100);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 16px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ucam-blue);
}
.brand-logo {
    height: 40px;
    width: auto;
}
.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}
.brand-name {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.1rem;
}
.brand-tagline {
    font-size: 0.72rem;
    color: var(--grey-500);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav-menu a {
    color: var(--grey-700);
    font-weight: 500;
    font-size: 0.95rem;
}
.nav-menu a:hover { color: var(--ucam-blue); }
.nav-menu .cta-btn {
    background: var(--ucam-blue);
    color: #fff;
    padding: 9px 16px;
    border-radius: 999px;
    font-size: 0.9rem;
    transition: background 0.15s, transform 0.15s;
}
.nav-menu .cta-btn:hover {
    background: var(--ucam-blue-dark);
    color: #fff;
    transform: translateY(-1px);
}
.nav-toggle {
    display: none;
    background: transparent;
    border: 0;
    padding: 8px;
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--ucam-blue);
    margin: 5px 0;
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    background:
        radial-gradient(1200px 600px at 80% -100px, rgba(199,163,58,0.18), transparent 60%),
        radial-gradient(1000px 500px at 0% 100%, rgba(63,111,170,0.18), transparent 60%),
        linear-gradient(160deg, #fff 0%, #F4F6FB 100%);
    padding: clamp(60px, 10vw, 120px) 0 clamp(50px, 8vw, 100px);
    position: relative;
    overflow: hidden;
}
.hero-inner { max-width: 880px; }
.kicker {
    display: inline-block;
    background: rgba(31, 58, 95, 0.08);
    color: var(--ucam-blue);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: 0 0 18px;
}
.hero h1 {
    font-size: clamp(1.9rem, 4.5vw, 3.1rem);
    margin: 0 0 18px;
    color: var(--ucam-blue);
}
.lead {
    font-size: clamp(1rem, 1.6vw, 1.18rem);
    color: var(--grey-700);
    max-width: 720px;
    margin: 0 0 32px;
}
.hero-ctas {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 44px;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 22px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.96rem;
    transition: background 0.15s, transform 0.15s, box-shadow 0.15s, color 0.15s;
}
.btn svg { transition: transform 0.2s; }
.btn:hover svg { transform: translateX(3px); }
.btn-primary {
    background: var(--ucam-blue);
    color: #fff;
    box-shadow: var(--shadow-md);
}
.btn-primary:hover {
    background: var(--ucam-blue-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.btn-ghost {
    background: transparent;
    color: var(--ucam-blue);
    border: 1.5px solid var(--ucam-blue);
}
.btn-ghost:hover {
    background: var(--ucam-blue);
    color: #fff;
}

.hero-stats {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    max-width: 760px;
}
.hero-stats li {
    background: #fff;
    border: 1px solid var(--grey-100);
    border-radius: var(--radius);
    padding: 16px 18px;
    box-shadow: var(--shadow-sm);
}
.hero-stats strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.55rem;
    color: var(--ucam-blue);
    line-height: 1.1;
}
.hero-stats span {
    display: block;
    margin-top: 4px;
    font-size: 0.8rem;
    color: var(--grey-500);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ============================================================
   SECCIONES
   ============================================================ */
.section {
    padding: clamp(60px, 9vw, 110px) 0;
}
.section-alt {
    background: var(--grey-50);
    border-top: 1px solid var(--grey-100);
    border-bottom: 1px solid var(--grey-100);
}
.section-kicker {
    color: var(--ucam-gold);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin: 0 0 12px;
}
.section h2 {
    font-size: clamp(1.55rem, 3.2vw, 2.2rem);
    margin-bottom: 18px;
    max-width: 760px;
}
.section-lead {
    font-size: 1.05rem;
    color: var(--grey-700);
    max-width: 760px;
    margin: 0 0 40px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 56px;
    align-items: start;
}
.info-card {
    background: var(--ucam-blue);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 30px 32px;
    box-shadow: var(--shadow-lg);
}
.info-card h3 {
    color: var(--ucam-gold);
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 18px;
}
.info-card dl {
    display: grid;
    gap: 14px;
    margin: 0;
}
.info-card dt {
    font-size: 0.76rem;
    color: rgba(255, 255, 255, 0.65);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 2px;
}
.info-card dd {
    margin: 0;
    color: #fff;
    font-weight: 500;
}

/* ============================================================
   CARDS DE PROYECTOS
   ============================================================ */
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}
.card {
    background: #fff;
    border: 1px solid var(--grey-100);
    border-radius: var(--radius);
    padding: 26px 26px 28px;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--grey-200);
}
.card header {
    margin-bottom: 14px;
}
.card h3 {
    font-size: 1.32rem;
    margin: 0 0 4px;
}
.card-sub {
    color: var(--grey-500);
    font-size: 0.88rem;
    margin: 0;
}
.card p {
    color: var(--grey-700);
    font-size: 0.96rem;
    margin: 0;
}
.card-featured {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--ucam-blue) 0%, var(--ucam-blue-dark) 100%);
    color: #fff;
    border: 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}
.card-featured::before {
    content: "";
    position: absolute;
    top: -120px; right: -120px;
    width: 320px; height: 320px;
    background: radial-gradient(circle, rgba(199,163,58,0.35), transparent 60%);
    pointer-events: none;
}
.card-featured h3 { color: #fff; font-size: 1.7rem; }
.card-featured .card-sub { color: rgba(255,255,255,0.75); }
.card-featured p { color: rgba(255,255,255,0.92); margin-bottom: 22px; }
.card-featured .badge {
    display: inline-block;
    background: var(--ucam-gold);
    color: var(--ucam-blue-dark);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 12px;
}
.card-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--ucam-gold-light);
    font-weight: 600;
    padding: 10px 0;
    border-bottom: 2px solid transparent;
    transition: border-color 0.2s, color 0.2s;
}
.card-cta:hover {
    color: #fff;
    border-bottom-color: var(--ucam-gold);
}
.card-cta svg { transition: transform 0.2s; }
.card-cta:hover svg { transform: translateX(4px); }

/* ============================================================
   LOGOS BAND
   ============================================================ */
.logos-section {
    padding: clamp(48px, 7vw, 84px) 0;
    background: #fff;
    border-top: 1px solid var(--grey-100);
}
.logos-title {
    text-align: center;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    color: var(--grey-500);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    margin: 0 0 28px;
}
.logos-band {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: clamp(28px, 6vw, 80px);
}
.logo-slot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    padding: 8px 12px;
    filter: grayscale(20%);
    opacity: 0.92;
    transition: filter 0.2s, opacity 0.2s, transform 0.2s;
}
.logo-slot:hover {
    filter: none;
    opacity: 1;
    transform: scale(1.04);
}
.logo-slot img { max-height: 60px; height: 100%; width: auto; }
.logo-slot-ucam img { max-height: 56px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    background: var(--ucam-blue);
    color: rgba(255,255,255,0.85);
    padding: 56px 0 24px;
}
.site-footer a { color: var(--ucam-gold-light); }
.site-footer a:hover { color: #fff; }
.footer-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}
.footer-block strong {
    display: block;
    color: #fff;
    font-family: var(--font-serif);
    font-size: 1.1rem;
    margin-bottom: 10px;
}
.footer-block p {
    margin: 4px 0;
    font-size: 0.95rem;
}
.footer-block .muted { color: rgba(255,255,255,0.55); }
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li { margin: 4px 0; }
.footer-bottom {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.12);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    font-size: 0.84rem;
}
.footer-bottom p { margin: 4px 0; }
.footer-bottom .muted { color: rgba(255,255,255,0.55); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1020px) {
    .grid-2 { grid-template-columns: 1fr; gap: 30px; }
    .cards { grid-template-columns: repeat(2, 1fr); }
    .card-featured { grid-column: span 2; }
    .footer-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
    .nav-toggle { display: block; }
    .nav-menu {
        position: absolute;
        top: 72px;
        left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--grey-100);
        box-shadow: var(--shadow-md);
        transform: translateY(-12px);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.2s, opacity 0.2s;
    }
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav-menu a {
        padding: 14px 4px;
        border-bottom: 1px solid var(--grey-100);
        font-size: 1rem;
    }
    .nav-menu a:last-child { border-bottom: 0; }
    .nav-menu .cta-btn {
        margin-top: 10px;
        text-align: center;
        padding: 12px 16px;
    }
    .brand-tagline { display: none; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .cards { grid-template-columns: 1fr; }
    .card-featured { grid-column: auto; }
    .footer-inner { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; }
}

@media (max-width: 420px) {
    .container { padding: 0 18px; }
    .hero-ctas { flex-direction: column; }
    .hero-ctas .btn { width: 100%; justify-content: center; }
    .hero-stats { grid-template-columns: 1fr 1fr; }
    .info-card { padding: 24px 22px; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
    .site-header, .hero-ctas, .nav-toggle { display: none; }
    .site-footer { background: #fff; color: #000; }
    body { color: #000; }
}