/* ===========================
   KEYFRAMES
=========================== */
@keyframes slideUp {
  from { transform: translateY(100%); }
  to { 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 float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

@keyframes spin-slow {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes scrollDown {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes borderGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(77, 184, 212, 0.1); }
  50% { box-shadow: 0 0 40px rgba(77, 184, 212, 0.25); }
}

@keyframes scaleIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes slideInLeft {
  from { transform: translateX(-40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
  from { transform: translateX(40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes counterUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes revealLine {
  from { width: 0; }
  to { width: 60px; }
}

/* ===========================
   SCROLL REVEAL CLASSES
=========================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ===========================
   HOVER EFFECTS
=========================== */
.hover-glow {
  transition: box-shadow 0.3s ease;
}
.hover-glow:hover {
  box-shadow: 0 0 30px rgba(77, 184, 212, 0.2);
}

.hover-lift {
  transition: transform 0.3s ease;
}
.hover-lift:hover {
  transform: translateY(-6px);
}

/* ===========================
   LOADING STATES
=========================== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 0%,
    rgba(255,255,255,0.05) 50%,
    var(--bg-tertiary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* ===========================
   PAGE TRANSITION
=========================== */
.page-transition {
  opacity: 0;
  animation: fadeIn 0.5s ease 0.1s forwards;
}

/* ===========================
   GRADIENT BORDER ANIMATION
=========================== */
.animated-border {
  position: relative;
}

.animated-border::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    var(--accent-light),
    var(--accent-dark),
    var(--accent-light)
  );
  background-size: 200% 200%;
  animation: shimmer 3s linear infinite;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.animated-border:hover::after {
  opacity: 0.6;
}

/* ===========================
   NUMBER COUNTER
=========================== */
.counter-wrap {
  animation: counterUp 0.5s ease forwards;
}

/* ===========================
   PARALLAX
=========================== */
.parallax-slow {
  will-change: transform;
}

/* ===========================
   CURSOR EFFECT
=========================== */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  mix-blend-mode: difference;
}

.cursor-ring {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(77, 184, 212, 0.6);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.4s ease, height 0.4s ease, transform 0.1s ease;
}

.cursor-ring.hovering {
  width: 56px;
  height: 56px;
  border-color: var(--accent);
  background: rgba(77, 184, 212, 0.05);
}

/* ===========================
   NOISE TEXTURE OVERLAY
=========================== */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
}

/* ===========================
   PORTFOLIO CARD ANIMATIONS
=========================== */
.portfolio-card {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.4s ease,
              border-color 0.3s ease;
}

.portfolio-card.hidden {
  display: none;
}

/* ===========================
   FORM ANIMATIONS
=========================== */
.form-group {
  position: relative;
}

.form-input,
.form-textarea,
.form-select {
  transition: border-color 0.3s ease,
              box-shadow 0.3s ease,
              background 0.3s ease;
}

/* ===========================
   PROGRESS BAR
=========================== */
.progress-bar {
  height: 3px;
  background: var(--border-subtle);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 12px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent-light));
  border-radius: 2px;
  width: 0;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-fill.animated {
  /* width set by JS */
}