/* ═══ Base ═══ */
html { scroll-behavior: smooth; }
body { background: linear-gradient(135deg, #0f0c29, #302b63, #24243e); }

/* ═══ Particles ═══ */
.particles { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.particle {
    position: absolute; width: 2px; height: 2px;
    background: rgba(102,126,234,0.6); border-radius: 50%;
    animation: float linear infinite;
}

/* ═══ Keyframes ═══ */
@keyframes float {
    0%   { transform: translateY(100vh) scale(0); opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}
@keyframes fadeInDown { from { opacity:0; transform:translateY(-40px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeInUp { from { opacity:0; transform:translateY(30px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@keyframes crossDraw { 0% { transform:scale(0) rotate(-180deg); opacity:0; } 60% { transform:scale(1.2) rotate(10deg); opacity:1; } 100% { transform:scale(1) rotate(0); opacity:1; } }
@keyframes gradientShift { 0%,100% { background-position:0% 50%; } 50% { background-position:100% 50%; } }
@keyframes pulse { 0%,100% { box-shadow:0 4px 20px rgba(102,126,234,0.4); } 50% { box-shadow:0 4px 40px rgba(118,75,162,0.7); } }
@keyframes slideInLeft { from { opacity:0; transform:translateX(-20px); } to { opacity:1; transform:translateX(0); } }
@keyframes bounce { 0%,100% { transform:translateY(0); } 50% { transform:translateY(8px); } }

/* ═══ Hero Animations ═══ */
.anim-fade-down { animation: fadeInDown 0.8s cubic-bezier(0.22,1,0.36,1) both; }
.anim-cross { animation: crossDraw 0.9s cubic-bezier(0.22,1,0.36,1) 0.2s both; filter: drop-shadow(0 0 8px rgba(229,57,53,0.6)); }
.anim-gradient {
    background: linear-gradient(90deg, #667eea, #764ba2, #667eea);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 4s ease infinite;
}
.anim-fade-up-1 { animation: fadeInUp 0.7s ease 0.5s both; }
.anim-fade-up-2 { animation: fadeInUp 0.7s ease 0.65s both; }
.anim-fade-up-3 { animation: fadeInUp 0.7s ease 0.8s both; }
.anim-slide { opacity:0; animation: slideInLeft 0.5s ease forwards; }
.anim-slide:nth-child(1) { animation-delay: 0.9s; }
.anim-slide:nth-child(2) { animation-delay: 1.1s; }
.anim-slide:nth-child(3) { animation-delay: 1.3s; }
.anim-btn { animation: fadeIn 0.6s ease 1.5s both; }
.anim-scroll { animation: fadeIn 0.6s ease 2.5s both; }
.scroll-arrow { animation: bounce 2s ease infinite; }

/* ═══ Glass Card ═══ */
.glass {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.glass:hover {
    transform: translateY(-4px);
    border-color: rgba(102,126,234,0.4);
    box-shadow: 0 8px 32px rgba(102,126,234,0.15);
}

/* ═══ Gradient Border Hover ═══ */
.gradient-border { position: relative; overflow: hidden; }
.gradient-border::before {
    content: ''; position: absolute; inset: 0;
    border-radius: inherit; padding: 1px;
    background: linear-gradient(135deg, transparent, transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    transition: background 0.3s;
}
.gradient-border:hover::before {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

/* ═══ Section Divider ═══ */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102,126,234,0.3), transparent);
    max-width: 600px;
    margin: 0 auto;
}

/* ═══ Scroll Reveal: Stagger + Scale + Blur ═══ */
.reveal-title {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-title.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-card {
    opacity: 0;
    transform: translateY(24px) scale(0.95);
    filter: blur(6px);
    transition: opacity 0.6s ease, transform 0.6s ease, filter 0.6s ease;
}
.reveal-card.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}

/* Stagger delays for cards */
.reveal-card:nth-child(1) { transition-delay: 0s; }
.reveal-card:nth-child(2) { transition-delay: 0.1s; }
.reveal-card:nth-child(3) { transition-delay: 0.2s; }
.reveal-card:nth-child(4) { transition-delay: 0.3s; }

/* Pills stagger (AI brands, dev stack) */
.reveal-pill {
    opacity: 0;
    transform: translateY(10px) scale(0.9);
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.reveal-pill.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ═══ AI Brand Pills ═══ */
.ai-brand { transition: transform .2s, border-color .2s, color .2s; cursor: default; }
.ai-brand:hover { transform: translateY(-2px); border-color: var(--brand-color, rgba(255,255,255,0.3)); color: #fff; }