/* ============================================
   INFOHAS PRO - HERO KEYWORDS BACKGROUND
   Floating SEO keywords effect for hero section
   ============================================ */

/* --- Hero Keywords Container --- */
.hero-keywords-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.hero-keywords-bg .keyword {
    position: absolute;
    font-family: var(--ih-font-body);
    font-weight: var(--ih-font-bold);
    color: rgba(212, 168, 67, 0.08);
    white-space: nowrap;
    user-select: none;
    pointer-events: none;
    animation: keywordFloat var(--float-duration, 20s) ease-in-out infinite;
    animation-delay: var(--float-delay, 0s);
}

/* --- Keyword Size Variants --- */
.keyword.keyword-xs {
    font-size: 0.7rem;
    letter-spacing: 0.05em;
}

.keyword.keyword-sm {
    font-size: 0.85rem;
    letter-spacing: 0.04em;
}

.keyword.keyword-md {
    font-size: 1.1rem;
    letter-spacing: 0.03em;
}

.keyword.keyword-lg {
    font-size: 1.5rem;
    letter-spacing: 0.02em;
    font-weight: var(--ih-font-extrabold);
}

.keyword.keyword-xl {
    font-size: 2rem;
    letter-spacing: 0.01em;
    font-weight: var(--ih-font-black);
    color: rgba(212, 168, 67, 0.12);
}

/* --- Keyword Color Variants --- */
.keyword.keyword-gold {
    color: rgba(212, 168, 67, 0.08);
}

.keyword.keyword-sky {
    color: rgba(212, 168, 67, 0.08);
}

.keyword.keyword-white {
    color: rgba(212, 168, 67, 0.08);
}

/* --- Rotation Variants --- */
.keyword.rotate-neg3 { transform: rotate(-3deg); }
.keyword.rotate-neg2 { transform: rotate(-2deg); }
.keyword.rotate-neg1 { transform: rotate(-1deg); }
.keyword.rotate-0 { transform: rotate(0deg); }
.keyword.rotate-1 { transform: rotate(1deg); }
.keyword.rotate-2 { transform: rotate(2deg); }
.keyword.rotate-3 { transform: rotate(3deg); }
.keyword.rotate-5 { transform: rotate(5deg); }
.keyword.rotate-neg5 { transform: rotate(-5deg); }

/* --- Opacity Variants --- */
.keyword.opacity-low { opacity: 0.04; }
.keyword.opacity-medium { opacity: 0.07; }
.keyword.opacity-high { opacity: 0.12; }

/* --- Layer Depth --- */
.hero-keywords-layer-1 {
    z-index: 1;
}

.hero-keywords-layer-2 {
    z-index: 2;
}

.hero-keywords-layer-3 {
    z-index: 3;
}

/* --- Generated Positions (20 positions) --- */
.keyword[data-pos="1"]  { top: 5%; left: 2%; }
.keyword[data-pos="2"]  { top: 8%; left: 25%; }
.keyword[data-pos="3"]  { top: 3%; left: 50%; }
.keyword[data-pos="4"]  { top: 12%; left: 72%; }
.keyword[data-pos="5"]  { top: 6%; left: 90%; }
.keyword[data-pos="6"]  { top: 22%; left: 5%; }
.keyword[data-pos="7"]  { top: 25%; left: 35%; }
.keyword[data-pos="8"]  { top: 20%; left: 60%; }
.keyword[data-pos="9"]  { top: 28%; left: 82%; }
.keyword[data-pos="10"] { top: 35%; left: 15%; }
.keyword[data-pos="11"] { top: 40%; left: 45%; }
.keyword[data-pos="12"] { top: 38%; left: 70%; }
.keyword[data-pos="13"] { top: 50%; left: 8%; }
.keyword[data-pos="14"] { top: 55%; left: 30%; }
.keyword[data-pos="15"] { top: 52%; left: 55%; }
.keyword[data-pos="16"] { top: 58%; left: 78%; }
.keyword[data-pos="17"] { top: 68%; left: 12%; }
.keyword[data-pos="18"] { top: 72%; left: 40%; }
.keyword[data-pos="19"] { top: 70%; left: 65%; }
.keyword[data-pos="20"] { top: 75%; left: 88%; }
.keyword[data-pos="21"] { top: 82%; left: 5%; }
.keyword[data-pos="22"] { top: 85%; left: 28%; }
.keyword[data-pos="23"] { top: 80%; left: 52%; }
.keyword[data-pos="24"] { top: 88%; left: 75%; }
.keyword[data-pos="25"] { top: 92%; left: 18%; }
.keyword[data-pos="26"] { top: 15%; left: 42%; }
.keyword[data-pos="27"] { top: 45%; left: 90%; }
.keyword[data-pos="28"] { top: 65%; left: 50%; }
.keyword[data-pos="29"] { top: 32%; left: 65%; }
.keyword[data-pos="30"] { top: 78%; left: 40%; }

/* --- Hero Section Styles --- */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--ih-primary-900) 0%, var(--ih-primary-800) 50%, var(--ih-primary-700) 100%);
    overflow: hidden;
    padding: calc(var(--ih-header-height) + var(--ih-space-16)) var(--ih-space-6) var(--ih-space-16);
}

.hero-section--has-bg-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-section--has-bg-image::after {
    display: none;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-section:not(.hero-section--has-bg-image)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(212,168,67,0.08) 0%, transparent 60%);
    z-index: 0;
}

.hero-section:not(.hero-section--has-bg-image)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to top, rgba(10,22,40,0.5), transparent);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 5;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-institution {
    display: inline-block;
    font-family: var(--ih-font-body);
    font-size: var(--ih-text-sm);
    font-weight: var(--ih-font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--ih-gold-400);
    margin-bottom: var(--ih-space-4);
    padding: var(--ih-space-2) var(--ih-space-5);
    border: 1px solid rgba(212,168,67,0.3);
    border-radius: var(--ih-radius-full);
}

.hero-title {
    font-family: var(--ih-font-heading);
    font-size: var(--ih-text-6xl);
    font-weight: var(--ih-font-bold);
    color: #fff;
    line-height: 1.1;
    margin-bottom: var(--ih-space-6);
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero-title .highlight {
    color: var(--ih-gold-400);
    display: inline;
}

.hero-subtitle {
    font-family: var(--ih-font-heading);
    font-size: var(--ih-text-2xl);
    color: var(--ih-gold-400);
    font-style: italic;
    margin-bottom: var(--ih-space-6);
}

.hero-desc {
    font-size: var(--ih-text-lg);
    color: rgba(255,255,255,0.85);
    line-height: var(--ih-leading-relaxed);
    max-width: 600px;
    margin: 0 auto var(--ih-space-8);
}

.hero-buttons {
    display: flex;
    gap: var(--ih-space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--ih-space-8);
    left: 0;
    right: 0;
    z-index: 5;
    color: rgba(255,255,255,0.5);
    font-size: var(--ih-text-sm);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: scrollBounce 3s ease-in-out infinite;
}

.hero-scroll-indicator .arrow {
    display: block;
    width: 24px;
    height: 24px;
    margin: var(--ih-space-2) 0 0;
    border-right: 2px solid rgba(255,255,255,0.4);
    border-bottom: 2px solid rgba(255,255,255,0.4);
    transform: rotate(45deg);
}

/* Scroll indicator bounce animation (uses margin, not transform, to avoid breaking centering) */
@keyframes scrollBounce {
    0%, 100% { margin-bottom: 0; }
    50% { margin-bottom: 10px; }
}

/* --- Hero Particles (decorative dots) --- */
.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
}

.hero-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(212,168,67,0.2);
    animation: float var(--float-duration, 15s) ease-in-out infinite;
}

/* --- Page Hero Banner (for inner pages) --- */
.page-hero {
    position: relative;
    background: linear-gradient(135deg, var(--ih-primary-900) 0%, var(--ih-primary-700) 100%);
    padding: calc(var(--ih-header-height) + var(--ih-space-12)) var(--ih-space-6) var(--ih-space-12);
    text-align: center;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(212,168,67,0.06) 0%, transparent 70%);
}

.page-hero .hero-keywords-bg {
    opacity: 0.5;
}

.page-hero-title {
    font-family: var(--ih-font-heading);
    font-size: var(--ih-text-4xl);
    color: #fff;
    margin-bottom: var(--ih-space-4);
    position: relative;
    z-index: 5;
}

.page-hero-subtitle {
    font-size: var(--ih-text-lg);
    color: rgba(255,255,255,0.7);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 5;
}

/* --- Responsive Adjustments --- */
@media (max-width: 767px) {
    .hero-section {
        min-height: 90vh;
        padding-top: calc(var(--ih-header-height-mobile, 64px) + var(--ih-space-10));
    }
    
    .hero-title {
        font-size: var(--ih-text-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--ih-text-xl);
    }
    
    .hero-desc {
        font-size: var(--ih-text-base);
    }
    
    .keyword.keyword-xl { font-size: 1.2rem; }
    .keyword.keyword-lg { font-size: 1rem; }
}

@media (max-width: 479px) {
    .hero-title {
        font-size: var(--ih-text-3xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .keyword.keyword-xl,
    .keyword.keyword-lg { display: none; }
}