/* ================== GLOBAL RESET ================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  font-family: "Plus Jakarta Sans", sans-serif;
}

html {
  scroll-behavior: smooth;
}

/* ================== BACKGROUND & CARD ================== */
.gradient-bg {
  background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #60a5fa 100%);
}

.glass-card {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ================== FORM ================== */
.input-field {
  transition: all 0.3s ease;
  border: 2px solid #e5e7eb;
}

.input-field:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
  outline: none;
}

/* ================== BUTTON ================== */
.btn-primary-custom {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  transition: all 0.3s ease;
}

.btn-primary-custom:hover {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
}

.btn-outline-custom {
  border: 2px solid #10b981;
  color: #10b981;
  transition: all 0.3s ease;
}

.btn-outline-custom:hover {
  background: #10b981;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
}

/* ================== FLOATING BACKGROUND ================== */
.floating-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  animation: float-bg 20s infinite ease-in-out;
}

.shape-1 {
  width: 300px;
  height: 300px;
  background: #3b82f6;
  top: -100px;
  right: -100px;
}

.shape-2 {
  width: 200px;
  height: 200px;
  background: #10b981;
  bottom: -50px;
  left: -50px;
}

.shape-3 {
  width: 150px;
  height: 150px;
  background: #f59e0b;
  top: 50%;
  right: 10%;
}

@keyframes float-bg {
  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(20px, -20px) rotate(5deg);
  }
  50% {
    transform: translate(-10px, 20px) rotate(-5deg);
  }
  75% {
    transform: translate(-20px, -10px) rotate(3deg);
  }
}

/* ================== LOGO ================== */
.logo-container {
  animation: pulse-glow 3s infinite ease-in-out;
}

@keyframes pulse-glow {
  0%,
  100% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.5);
  }
}

/* ================== FADE ================== */
.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ================== PRELOADER ================== */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e3a5f 0%, #0d1b2a 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition:
    opacity 0.5s ease,
    visibility 0.5s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ================== NAV & TEXT ================== */
.password-toggle {
  cursor: pointer;
  transition: color 0.2s ease;
}

.password-toggle:hover {
  color: #3b82f6;
}

.gradient-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0c4a6e 100%);
}

.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #22d3ee 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ================== CARD ================== */
.card-hover {
  transition: all 0.3s ease;
}

.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* ================== UI FLOAT ================== */
.animate-float {
  animation: float-ui 3s ease-in-out infinite;
}

@keyframes float-ui {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* ================== NAV LINK ================== */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #38bdf8;
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* ================== STAT ================== */
.stat-card {
  background: linear-gradient(
    135deg,
    rgba(14, 165, 233, 0.1) 0%,
    rgba(34, 211, 238, 0.1) 100%
  );
  border: 1px solid rgba(56, 189, 248, 0.2);
}

/* ================== JURUSAN ================== */
.jurusan-rpl {
  background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
}

.jurusan-dkv {
  background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
}