/* 
 * PATELLE - Master Visual Identity
 * Refined Dynamic Experience
 */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600&family=Inter:wght@200;300;400;600&display=swap');

:root {
    --bg-color: #000000;
    --gold-primary: #D4AF37;
    --gold-hover: #F9E29B;
    --text-primary: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.7);
    --border-radius: 4px;
    --transition: all 1s cubic-bezier(0.2, 1, 0.3, 1);
    --transition-fast: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Layout --- */
.container {
    max-width: 850px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 10rem 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background-color: var(--bg-color);
    overflow: hidden;
}

/* --- Reveal Animations --- */
.reveal,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: all 1s cubic-bezier(0.2, 1, 0.3, 1);
    will-change: transform, opacity;
}

.reveal {
    transform: translateY(30px);
}

.reveal-left {
    transform: translateX(-30px);
}

.reveal-right {
    transform: translateX(30px);
}

.reveal.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* Stagger logic */
.stagger-1 {
    transition-delay: 0.1s;
}

.stagger-2 {
    transition-delay: 0.2s;
}

.stagger-3 {
    transition-delay: 0.3s;
}

.stagger-4 {
    transition-delay: 0.4s;
}

/* --- Dynamic Background Logic --- */
.section-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    filter: brightness(0.5) saturate(1);
}

.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('https://images.unsplash.com/photo-1514525253344-f2038749a263?auto=format&fit=crop&q=80&w=1920');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

#filosofia {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('https://images.unsplash.com/photo-1517457373958-b7bdd4587205?auto=format&fit=crop&q=80&w=1920');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
}

#equipo {
    background: linear-gradient(rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.65)), url('https://images.unsplash.com/photo-1492684223066-81342ee5ff30?auto=format&fit=crop&q=80&w=1920');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
}

#proyectos {
    background-color: #000;
}

#servicios {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('https://images.unsplash.com/photo-1540541338287-41700207dee6?auto=format&fit=crop&q=80&w=1920');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
}

#contacto {
    background: linear-gradient(rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.65)), url('https://images.unsplash.com/photo-1516280440614-37939bbacd81?auto=format&fit=crop&q=80&w=1920');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
}

/* --- Logo Styling --- */
.logo-sphere {
    width: 200px;
    height: 200px;
    margin-bottom: 2rem;
    position: relative;
}

.logo-sphere svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 15px rgba(212, 175, 55, 0.3));
}

/* --- Headers --- */
h1 {
    font-family: 'Cinzel', serif;
    font-size: 3.5rem;
    font-weight: 400;
    letter-spacing: 0.6em;
    color: var(--gold-primary);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    padding-left: 0.6em;
}

.hero-sub {
    font-size: 0.75rem;
    letter-spacing: 0.5em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.section-tag {
    color: var(--gold-primary);
    font-size: 0.6rem;
    letter-spacing: 0.6em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 2rem;
    text-align: center;
}

h2 {
    font-family: 'Cinzel', serif;
    font-size: 2.2rem;
    letter-spacing: 0.4em;
    text-align: center;
    margin-bottom: 5rem;
    text-transform: uppercase;
}

/* --- Navigation --- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 1rem;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: center;
    gap: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

@media (max-width: 600px) {
    nav {
        gap: 0.4rem;
        padding: 1rem 0.2rem;
        justify-content: space-evenly;
    }

    nav a {
        font-size: 0.5rem;
        letter-spacing: 0.1em;
        padding: 0.2rem 0;
    }
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    transition: var(--transition);
}

nav a:hover {
    color: var(--gold-primary);
}

/* --- Features --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 4rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.feature-item h3 {
    font-family: 'Cinzel', serif;
    font-size: 1rem;
    color: var(--gold-primary);
    margin-bottom: 1.5rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
}

.feature-item p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --- Event Cards --- */
.event-list {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.event-card {
    position: relative;
    height: 450px;
    border-radius: 2px;
    overflow: hidden;
    text-decoration: none;
    color: white;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.event-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: var(--transition);
    filter: brightness(0.7) saturate(1);
}

.event-card:hover .event-bg {
    transform: scale(1.05);
    filter: brightness(0.9) saturate(1.1);
}

.event-info {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 3rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.95));
    text-align: center;
}

.event-meta {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--gold-primary);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.event-title {
    font-family: 'Cinzel', serif;
    font-size: 1.8rem;
    letter-spacing: 0.1em;
}

/* --- Form --- */
#contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: rgba(0, 0, 0, 0.4);
    padding: 3rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212, 175, 55, 0.1);
}

input,
textarea {
    background: rgba(255, 255, 255, 0.03);
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 1rem;
    color: white;
    font-family: inherit;
    transition: var(--transition);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--gold-primary);
    background: rgba(255, 255, 255, 0.05);
}

.legal-box {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.checkbox-label {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    cursor: pointer;
}

.checkbox-label a {
    color: var(--gold-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: var(--transition);
}

.checkbox-label a:hover {
    color: var(--gold-hover);
}

.submit-btn {
    margin-top: 2rem;
    background: var(--gold-primary);
    color: black;
    border: none;
    padding: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    cursor: pointer;
    opacity: 0.1;
    pointer-events: none;
    transition: var(--transition);
}

.submit-btn.active {
    opacity: 1;
    pointer-events: auto;
}

.submit-btn:hover {
    background: var(--gold-hover);
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.3);
}

/* --- Refined Footer --- */
footer {
    text-align: center;
    padding: 10rem 0 5rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 1), transparent);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-social-grid {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 4rem;
}

.social-item {
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.social-item span {
    font-size: 0.7rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--gold-primary);
}

.social-item:hover {
    transform: translateY(-5px);
    color: var(--gold-primary);
}

.footer-nav-legal {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
}

.footer-nav-legal a {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    transition: var(--transition);
}

.footer-nav-legal a:hover {
    color: var(--gold-primary);
}

.attribution {
    margin-top: 1.5rem;
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.attribution a {
    color: var(--gold-primary);
    text-decoration: none;
    border-bottom: 1px solid rgba(212, 175, 55, 0.3);
    transition: var(--transition);
    font-weight: 500;
}

.attribution a:hover {
    color: var(--gold-hover);
    border-bottom-color: var(--gold-hover);
}

@media (max-width: 600px) {
    h1 {
        font-size: 1.8rem;
        letter-spacing: 0.4em;
    }

    h2 {
        font-size: 1.4rem;
        letter-spacing: 0.3em;
        margin-bottom: 3rem;
    }

    section {
        padding: 6rem 0;
    }

    .hero-sub {
        font-size: 0.6rem;
        letter-spacing: 0.3em;
    }

    .event-card {
        height: 320px;
    }

    .footer-social-grid {
        gap: 2rem;
    }

    #contact-form {
        padding: 1.5rem;
    }
}

/* --- Success Message --- */
.success-message {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 4rem 2rem;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212, 175, 55, 0.1);
    animation: fadeIn 0.8s ease-out forwards;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid var(--gold-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    color: var(--gold-primary);
}

.success-icon svg {
    width: 40px;
    height: 40px;
}

.success-message h3 {
    font-family: 'Cinzel', serif;
    font-size: 1.8rem;
    color: var(--gold-primary);
    margin-bottom: 1.5rem;
    letter-spacing: 0.2em;
}

.success-message p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 3rem;
}

.back-btn {
    background: transparent;
    border: 1px solid var(--gold-primary);
    color: var(--gold-primary);
    padding: 1rem 2rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.7rem;
    cursor: pointer;
    transition: var(--transition);
}

.back-btn:hover {
    background: var(--gold-primary);
    color: black;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}