/* ============================================================
   PREMIUM PORTFOLIO EFFECTS — Global Animation Layer
   ============================================================ */

/* ── 1. BASE TRANSITIONS & VARIABLES ── */
:root {
    --glow-primary: rgba(37, 99, 235, 0.4);
    --glow-emerald: rgba(16, 185, 129, 0.4);
    --glow-cyan: rgba(6, 182, 212, 0.4);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── 2. SCROLL-REVEAL ANIMATIONS ── */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-expo), transform 0.8s var(--ease-expo);
    will-change: opacity, transform;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}
.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.7s var(--ease-expo), transform 0.7s var(--ease-expo);
}
.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}
.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.7s var(--ease-expo), transform 0.7s var(--ease-expo);
}
.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}
.reveal-scale {
    opacity: 0;
    transform: scale(0.88);
    transition: opacity 0.6s var(--ease-expo), transform 0.6s var(--ease-expo);
}
.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* ── 3. STAGGER DELAYS ── */
.stagger-1 { transition-delay: 0ms !important; }
.stagger-2 { transition-delay: 80ms !important; }
.stagger-3 { transition-delay: 160ms !important; }
.stagger-4 { transition-delay: 240ms !important; }
.stagger-5 { transition-delay: 320ms !important; }
.stagger-6 { transition-delay: 400ms !important; }

/* ── 4. MAGNETIC BUTTON EFFECT (via JS) ── */
.magnetic {
    display: inline-flex;
    transition: transform 0.3s var(--ease-spring);
    will-change: transform;
}

/* ── 5. GLOWING CARD EFFECT ── */
.glow-card {
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.35s ease, transform 0.35s ease;
}
.glow-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(37, 99, 235, 0.08) 0%,
        transparent 60%);
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}
.glow-card:hover::before {
    opacity: 1;
}
.glow-card > * {
    position: relative;
    z-index: 1;
}

/* ── 6. NEON TEXT SHIMMER ── */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
.text-shimmer {
    background: linear-gradient(
        90deg,
        #2563eb 0%,
        #10b981 25%,
        #06b6d4 50%,
        #2563eb 75%,
        #10b981 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 4s linear infinite;
}

/* ── 7. FLOATING ANIMATION ── */
@keyframes float-gentle {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-10px) rotate(0.5deg); }
    66% { transform: translateY(-6px) rotate(-0.5deg); }
}
.float-gentle {
    animation: float-gentle 6s ease-in-out infinite;
}
.float-gentle-slow {
    animation: float-gentle 9s ease-in-out infinite;
}
.float-gentle-fast {
    animation: float-gentle 4s ease-in-out infinite;
}

/* ── 8. GRADIENT BORDER ANIMATION ── */
@keyframes border-rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.gradient-border {
    position: relative;
    border-radius: inherit;
}
.gradient-border::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, #2563eb, #10b981, #06b6d4, #2563eb);
    background-size: 300% 300%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    animation: shimmer 3s linear infinite;
}
.gradient-border:hover::before {
    opacity: 1;
}

/* ── 9. TYPEWRITER CURSOR ── */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
.typewriter-cursor::after {
    content: '|';
    color: #2563eb;
    animation: blink 0.85s step-start infinite;
    margin-left: 2px;
}

/* ── 10. PARTICLE TRAILS (canvas-based via JS) ── */
#particle-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.35;
}

/* ── 11. COUNTER ANIMATION ── */
.counter-value {
    display: inline-block;
    transition: transform 0.1s ease;
}

/* ── 12. SECTION TITLE UNDERLINE DRAW ── */
@keyframes draw-underline {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}
.animated-underline {
    position: relative;
    display: inline-block;
}
.animated-underline::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 3px;
    border-radius: 99px;
    background: linear-gradient(90deg, #2563eb, #10b981);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.6s var(--ease-expo);
}
.animated-underline.active::after {
    transform: scaleX(1);
}

/* ── 13. GLASS MORPHISM CARDS ── */
.glass {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.12);
}
.glass-light {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.9);
}

/* ── 14. HOVER LIFT WITH SHADOW GLOW ── */
.hover-lift {
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease;
}
.hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -8px rgba(37, 99, 235, 0.25);
}
.hover-lift-green:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -8px rgba(16, 185, 129, 0.25);
}

/* ── 15. RIPPLE CLICK EFFECT ── */
.ripple-btn {
    position: relative;
    overflow: hidden;
}
.ripple-btn .ripple {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    animation: ripple-anim 0.6s linear;
    background-color: rgba(255, 255, 255, 0.3);
    pointer-events: none;
}
@keyframes ripple-anim {
    to { transform: scale(4); opacity: 0; }
}

/* ── 16. FADE IN SLIDE UP (keyframe) ── */
@keyframes fade-in-up {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in-up {
    animation: fade-in-up 0.7s var(--ease-expo) forwards;
}

/* ── 17. SMOOTH PAGE TRANSITIONS ── */
.page-transition-out {
    animation: page-out 0.4s ease forwards;
}
@keyframes page-out {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-20px); }
}

/* ── 18. SECTION BLOB BREATHE ── */
@keyframes blob-breathe {
    0%, 100% { transform: scale(1) translate(0, 0); border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
    25% { transform: scale(1.05) translate(5px, -5px); border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
    50% { transform: scale(0.97) translate(-5px, 5px); border-radius: 50% 60% 50% 50% / 40% 50% 60% 50%; }
    75% { transform: scale(1.03) translate(5px, 5px); border-radius: 40% 60% 40% 60% / 60% 40% 60% 40%; }
}
.blob-breathe {
    animation: blob-breathe 12s ease-in-out infinite;
}

/* ── 19. NOISE TEXTURE OVERLAY ── */
.noise-overlay {
    position: relative;
}
.noise-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    opacity: 0.04;
    pointer-events: none;
    border-radius: inherit;
    z-index: 0;
}

/* ── 20. ANIMATED GRADIENT TEXT ── */
.gradient-text-animated {
    background: linear-gradient(135deg, #2563eb, #10b981, #06b6d4, #8b5cf6);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 6s ease infinite;
}
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ── 21. SCROLL PROGRESS BAR ── */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #10b981, #06b6d4);
    width: 0%;
    z-index: 99999;
    border-radius: 0 2px 2px 0;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.6);
}

/* ── 22. TILT CARD EFFECT (via JS) ── */
.tilt-card {
    transform-style: preserve-3d;
    transition: transform 0.15s ease;
}
.tilt-card .tilt-inner {
    transform: translateZ(20px);
}

/* ── 23. SKILL TAG HOVER BOUNCE ── */
.skill-tag {
    transition: transform 0.25s var(--ease-spring), box-shadow 0.25s ease;
    cursor: default;
}
.skill-tag:hover {
    transform: translateY(-3px) scale(1.06);
    box-shadow: 0 8px 20px -4px var(--glow-primary);
}

/* ── 24. SPOTLIGHT EFFECT (dynamic, via JS) ── */
.spotlight-section {
    position: relative;
    overflow: hidden;
}
.spotlight-section .spotlight {
    position: absolute;
    pointer-events: none;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 60%);
    transform: translate(-50%, -50%);
    transition: left 0.2s ease, top 0.2s ease;
    z-index: 0;
}

/* ── 25. GLITCH EFFECT (hover) ── */
@keyframes glitch {
    0% { clip-path: inset(40% 0 61% 0); transform: skew(-0.5deg); }
    20% { clip-path: inset(92% 0 1% 0); transform: skew(0.8deg); }
    40% { clip-path: inset(43% 0 1% 0); transform: skew(-0.3deg); }
    60% { clip-path: inset(25% 0 58% 0); transform: skew(0.5deg); }
    80% { clip-path: inset(54% 0 7% 0); transform: skew(-0.8deg); }
    100% { clip-path: inset(58% 0 43% 0); transform: skew(0.2deg); }
}
.glitch-hover {
    position: relative;
}
.glitch-hover::before, .glitch-hover::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}
.glitch-hover:hover::before {
    opacity: 0.6;
    color: #10b981;
    animation: glitch 0.6s infinite;
    left: 2px;
}
.glitch-hover:hover::after {
    opacity: 0.6;
    color: #2563eb;
    animation: glitch 0.6s infinite reverse;
    left: -2px;
}

/* ── 26. CUSTOM SCROLLBAR ── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #2563eb, #10b981);
    border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #1d4ed8, #059669);
}

/* ── 27. SECTION SEPARATOR ANIMATED ── */
.section-sep {
    height: 1px;
    background: linear-gradient(90deg, transparent, #2563eb, #10b981, transparent);
    background-size: 200% auto;
    animation: shimmer 4s linear infinite;
    opacity: 0.3;
    border: none;
}

/* ── 28. CARD ENTRANCE STAGGER ── */
.card-stagger-group .stagger-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s var(--ease-expo);
}
.card-stagger-group.active .stagger-card:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.card-stagger-group.active .stagger-card:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: translateY(0); }
.card-stagger-group.active .stagger-card:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: translateY(0); }
.card-stagger-group.active .stagger-card:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.card-stagger-group.active .stagger-card:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: translateY(0); }
.card-stagger-group.active .stagger-card:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }

/* ── 29. AURORA BACKGROUND ── */
@keyframes aurora-1 { 0%, 100% { transform: translate(-5%, -5%) scale(1.05); opacity: 0.5; } 50% { transform: translate(5%, 5%) scale(0.95); opacity: 0.8; } }
@keyframes aurora-2 { 0%, 100% { transform: translate(5%, 5%) scale(0.95); opacity: 0.4; } 50% { transform: translate(-5%, -5%) scale(1.05); opacity: 0.7; } }

.aurora-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}
.aurora-blob-1 {
    position: absolute;
    width: 60%;
    height: 60%;
    background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
    animation: aurora-1 15s ease-in-out infinite;
    top: -10%;
    left: -10%;
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
}
.aurora-blob-2 {
    position: absolute;
    width: 50%;
    height: 50%;
    background: radial-gradient(ellipse at center, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
    animation: aurora-2 20s ease-in-out infinite;
    bottom: -10%;
    right: -10%;
    border-radius: 40% 60% 70% 30% / 40% 70% 30% 60%;
}

/* ── 30. NAV GLASSMORPHISM UPGRADE ── */
header {
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease, box-shadow 0.3s ease;
}
header.scrolled {
    background-color: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(20px) saturate(200%) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08) !important;
}
.dark header.scrolled {
    background-color: rgba(15, 23, 42, 0.9) !important;
    backdrop-filter: blur(20px) saturate(200%) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4) !important;
}

/* ── 31. HERO TEXT WORD-BY-WORD REVEAL ── */
.word-reveal span {
    display: inline-block;
    opacity: 0;
    transform: translateY(60px) rotate(5deg);
    transition: opacity 0.5s ease, transform 0.5s var(--ease-spring);
}
.word-reveal.active span {
    opacity: 1;
    transform: translateY(0) rotate(0deg);
}

/* ── 32. PORTFOLIO SIGNATURE NAV INDICATOR ── */
nav a {
    position: relative;
}
nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    border-radius: 99px;
    background: linear-gradient(90deg, #2563eb, #10b981);
    transition: width 0.3s var(--ease-expo);
}
nav a:hover::after,
nav a.active::after {
    width: 100%;
}

/* ── 33. TOOLTIP SYSTEM ── */
[data-tooltip] {
    position: relative;
}
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    background: #1e293b;
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s var(--ease-spring);
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

/* ── 34. ANIMATED DOTS GRID BACKGROUND ── */
.dot-grid-bg {
    background-image: radial-gradient(rgba(37, 99, 235, 0.1) 1px, transparent 1px);
    background-size: 24px 24px;
}
.dark .dot-grid-bg {
    background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
}