/* Base Styles & Typography */
@import url("../assets/fonts/student-login-fonts.css");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-brand-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-brand-accent);
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-width-xl);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.text-center { text-align: center; }
.text-brand { color: var(--color-brand-primary); }
.text-accent { color: var(--color-brand-accent); }
.text-muted { color: var(--color-text-muted); }

/* Buttons Customization */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-xl);
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-primary {
  background-color: var(--color-brand-accent);
  color: var(--color-on-brand-accent);
}

.btn-primary:hover {
  background-color: var(--color-brand-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border: 1.5px solid var(--color-brand-primary);
  color: var(--color-brand-primary);
}

.btn-outline:hover {
  background-color: var(--color-brand-primary);
  color: white;
}

/* Glassmorphism */
.glass {
  background: var(--color-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* Scroll Reveal Animations - Upgraded */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

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

.stagger-reveal > * {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.stagger-reveal.active > * {
  opacity: 1;
  transform: translateY(0);
}

.stagger-reveal.active > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-reveal.active > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-reveal.active > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-reveal.active > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-reveal.active > *:nth-child(5) { transition-delay: 0.5s; }

/* Global Text Reveal Applied via JS */
.global-text-reveal {
  opacity: 0;
  transform: translateY(20px);
  filter: blur(4px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), 
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              filter 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform, filter;
}

.global-text-reveal.active {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Card Hover Lift */
.hover-lift {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}