/* ------------------------- */
/* --- GLOBAL STYLES & VARIABLES (BAHIA PALETTE) --- */
/* ------------------------- */
:root {
    /* Standardized Palette (Single source of truth) */
    --dende-gold: #FFB81C; /* Origin & Narrative Accent */
    --deep-ocean: #00B5E2; /* Technical & Primary Accent */
    --clay-tone: #C46F43; /* Foundational Accent */
    --dark-accent: #2C2A4A; /* Border & Depth */
    --off-white: #E2E8F0; /* Main Text Color */
    --lime-accent: #A6FF00; /* Gradient Secondary Accent */
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #050505; 
    color: var(--off-white);
}

main {
    overflow-y: auto; /* Ensures main content area is scrollable */
}

h1, h2, h3, .font-space {
    font-family: 'Space Grotesk', sans-serif;
}

.gradient-text {
display: inline-block;
/* text-align: center; <-- REMOVIDA esta linha */
line-height: 1.05;
}

.gradient-text span {
display: block; /* forces each span onto its own line */
/* MODIFIED: Using the standardized lime-accent variable */
background: linear-gradient(90deg, var(--dende-gold), var(--lime-accent), var(--deep-ocean), var(--dende-gold));
background-size: 200% auto;
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
animation: gradient-flow 5s ease-in-out infinite;
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ------------------------- */
/* --- SIDEBAR & NAVIGATION --- */
/* ------------------------- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.sidebar-nav a {
    position: relative;
    padding-left: 1.5rem; 
    transition: color 0.3s ease;
    opacity: 0;
    animation: fadeInUp 0.5s ease-out forwards;
}

.lang-switcher {
    opacity: 0;
    animation: fadeInUp 0.5s ease-out 1s forwards;
}

/* Staggered animation delays */
/* MODIFIED: Adjusted for new nav order */
#models-link { animation-delay: 0.1s; }
#geometry-link { animation-delay: 0.2s; } 
#prototypes-link { animation-delay: 0.3s; }
/* DELETED: manuscripts-link */
#salvador-link { animation-delay: 0.5s; }
#founder-link { animation-delay: 0.6s; }
/* DELETED: network-link */


.sidebar-nav a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 4px;
    height: 24px;
    background-color: var(--deep-ocean);
    border-radius: 2px;
    transform: translateY(-50%) scaleY(0);
    transform-origin: center;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Top Group Links Style (Technical: Deep Ocean) */
.sidebar-nav a#geometry-link.active, .sidebar-nav a#geometry-link:hover,
.sidebar-nav a#models-link.active, .sidebar-nav a#models-link:hover,
.sidebar-nav a#prototypes-link.active, .sidebar-nav a#prototypes-link:hover {
    color: var(--deep-ocean);
}
.sidebar-nav a#geometry-link.active::before, .sidebar-nav a#geometry-link:hover::before,
.sidebar-nav a#models-link.active::before, .sidebar-nav a#models-link:hover::before,
.sidebar-nav a#prototypes-link.active::before, .sidebar-nav a#prototypes-link:hover::before {
     transform: translateY(-50%) scaleY(1);
     background-color: var(--deep-ocean);
}

/* Bottom Group Links Style (Origin/Narrative: Dendê Gold) */
.sidebar-nav a#salvador-link:hover, .sidebar-nav a#salvador-link.active,
.sidebar-nav a#founder-link:hover, .sidebar-nav a#founder-link.active {
    color: var(--dende-gold);
}
.sidebar-nav a#salvador-link:hover::before, .sidebar-nav a#salvador-link.active::before,
.sidebar-nav a#founder-link:hover::before, .sidebar-nav a#founder-link.active::before {
     transform: translateY(-50%) scaleY(1);
     background-color: var(--dende-gold);
}

.lang-btn {
    transition: background-color 0.3s ease, color 0.3s ease;
    border: 1px solid var(--dark-accent);
}
.lang-btn.active {
    background-color: var(--deep-ocean);
    color: #050505;
    border-color: var(--deep-ocean);
}

.sidebar-divider {
    height: 1px;
    background-color: rgba(255,255,255,0.2);
    margin: 0.75rem 0;
    opacity: 0;
    animation: fadeInUp 0.5s ease-out 0.4s forwards; /* Adjusted delay */
}

/* ------------------------- */
/* --- INTERACTIVE & ANIMATION --- */
/* ------------------------- */
.threshold-card, .instrument-card, .origin-card { /* ADDED: .origin-card */
    /* Base styles for all card types */
    border-left: 2px solid var(--dark-accent);
    transition: background-color 0.3s ease, border-color 0.3s ease;
    background-color: rgba(255, 255, 255, 0.03);
}
.threshold-card:hover, .instrument-card:hover, .origin-card:hover { /* ADDED: .origin-card */
    background-color: rgba(44, 42, 74, 0.3);
}

/* --- Specific Card Color Rules --- */

/* 1. Origin/Narrative Cards (Salvador, Founder Intro) */
.origin-card {
    border-left-color: var(--dende-gold); /* Narrative color */
}
.origin-card:hover {
    border-color: var(--dende-gold);
}

/* 2. Foundational Instruments (Clay Tone) */
.instrument-layer.foundational .instrument-card {
    border-left-color: var(--clay-tone);
}
.instrument-layer.foundational .instrument-card:hover {
    border-color: var(--clay-tone);
}

/* 3. Applied Systems (Deep Ocean) */
.instrument-layer.applied .instrument-card {
    border-left-color: var(--deep-ocean);
}
.instrument-layer.applied .instrument-card:hover {
    border-color: var(--deep-ocean);
}

/* End specific card rules. Note: Founder and Salvador already have classes applied in HTML */


.expandable-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.6s ease-in-out, padding-top 0.6s ease-in-out, margin-top 0.6s ease-in-out;
    padding-top: 0;
    margin-top: 0;
}
.expanded .expandable-content {
    max-height: 250vh; /* Use viewport height for flexible content that won't get cut off */
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}
.toggle-icon { 
    transition: transform 0.5s ease-in-out;
}
.expanded .toggle-icon { transform: rotate(45deg); }

.action-btn {
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    cursor: pointer;
}
.action-btn:hover:not(:disabled) {
     transform: translateY(-3px);
     /* MODIFIED: Use deep-ocean for generic shadow/hover unless overridden */
     box-shadow: 0 8px 25px rgba(0, 181, 226, 0.3); 
}
.action-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* NEW STYLE for active paper button */
.action-btn.active {
    background-color: var(--dende-gold) !important;
    color: #050505 !important;
    box-shadow: 0 8px 25px rgba(255, 184, 28, 0.3);
    transform: translateY(-3px);
}


.manuscript-tile {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--dark-accent);
    padding: 1.5rem;
    border-radius: 0.5rem;
    /* cursor: pointer; REMOVED - tiles no longer navigate */
    transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}
.manuscript-tile:hover {
    background-color: rgba(44, 42, 74, 0.3);
    border-color: var(--deep-ocean); /* Changed from clay-tone to deep-ocean for general technical content */
    transform: translateY(-5px);
}
#pdf-viewer-container canvas {
    border: 1px solid var(--dark-accent);
}
.homepage-supertitle {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
    color: rgba(226, 232, 240, 0.7);
    margin-bottom: 2rem;
}

.codex-showcase {
    background-color: #FFFFFF;
    border: 1px solid #e2e8f0;
    aspect-ratio: 1 / 1.414; /* A4 paper ratio */
    width: 100%;
    max-width: 300px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}
.codex-showcase-title {
    color: #050505;
}
.codex-showcase-title span {
    display: block;
}

.scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.no-scrollbar::-webkit-scrollbar{display:none}
.no-scrollbar{ -ms-overflow-style:none; scrollbar-width:none }
.text-balance{ text-wrap: balance } /* modern browsers */

/* ------------------------- */
/* --- NEW CONTACT FORM STYLES --- */
/* ------------------------- */

/* Wrapper for the form to handle show/hide animation */
#contact-form-wrapper {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.7s ease-in-out, opacity 0.5s ease-in-out 0.2s;
}

#contact-form-wrapper.open {
    max-height: 500px; /* Adjust as needed, should be larger than form height */
    opacity: 1;
}

/* Hide the "Send Message" button when form is open */
#contact-form-wrapper.open + #show-contact-form-btn {
    display: none;
}

/* Shared style for form inputs and textarea */
.form-input {
    width: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--dark-accent);
    border-radius: 0.375rem; /* 6px */
    padding: 0.65rem 0.75rem;
    color: var(--off-white);
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem; /* 14px */
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input::placeholder {
    color: #94a3b8; /* slate-400 */
    opacity: 0.7;
}

.form-input:focus {
    outline: none;
    border-color: var(--deep-ocean);
    box-shadow: 0 0 0 2px rgba(0, 181, 226, 0.4);
}

/* Specific style for textarea */
textarea.form-input {
    resize: vertical;
    min-height: 80px;
}

/* Status message styling */
#form-status.text-green-400 {
    color: #4ade80; /* Tailwind green-400 */
}
#form-status.text-red-400 {
    color: #f87171; /* Tailwind red-400 */
}

/* ------------------------- */
/* --- ORIGIN & FOUNDER INTRO CARDS --- */
/* ------------------------- */
.salvador-essay-card .toggle-text-less,
.founder-intro-card .toggle-text-less {
    display: none !important; /* ADDED !important for initial hiding */
}
.salvador-essay-card .toggle-text-more,
.founder-intro-card .toggle-text-more {
    display: inline !important; /* ADDED !important for initial showing */
}

.salvador-essay-card.expanded .toggle-text-less,
.founder-intro-card.expanded .toggle-text-less {
    display: inline !important; /* ADDED !important for expanded showing */
}
.salvador-essay-card.expanded .toggle-text-more,
.founder-intro-card.expanded .toggle-text-more {
    display: none !important; /* ADDED !important for expanded hiding */
}