/*
===========================================
ERMENE DESIGN SYSTEM - Corporate Website
===========================================
Basato su Ermene for Tennis - Coerenza totale
Brand Identity v2 + Osservazioni dal sistema live
*/

/* ===== ROOT VARIABLES ===== */
:root {
  /* Brand Colors - Palette Viola-Indaco Coordinata */
  --color-viola-profondo: #26215C;
  --color-viola-medio: #534AB7;
  --color-viola-chiaro: #7F77DD;
  --color-viola-pallido: #AFA9EC;
  --color-viola-bianco: #EEEDFE;
  --color-nero-viola: #0E0C1E;
  --color-blu-notte: #1A1730;

  /* Status Colors - Dal Model Health */
  --color-success: #22C55E;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: var(--color-viola-chiaro);

  /* Semantic Colors */
  --color-atp: #4F46E5;
  --color-wta: #EC4899;
  --color-low-risk: var(--color-success);
  --color-moderate-risk: var(--color-warning);
  --color-high-risk: var(--color-error);

  /* Typography - Trebuchet MS Brand Font */
  --font-primary: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;

  /* Typography Scale - Golden Ratio */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Spacing - Golden Ratio System */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-width: 1152px;
  --margin-desktop: 144px;
  --margin-tablet: 55px;
  --margin-mobile: 21px;

  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 50px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-base: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

/* ===== RESET & BASE STYLES ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-light);
  line-height: 1.6;
  color: var(--color-viola-bianco);
  background-color: var(--color-nero-viola);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY SYSTEM ===== */
.h1, h1 {
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.28em;
  line-height: 1.2;
  color: var(--color-viola-bianco);
}

.h2, h2 {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.05em;
  line-height: 1.3;
  color: var(--color-viola-bianco);
}

.h3, h3 {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.02em;
  line-height: 1.4;
  color: var(--color-viola-bianco);
}

.text-hero {
  font-size: var(--text-6xl);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-viola-profondo);
}

.text-tagline {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.15em;
  color: var(--color-viola-chiaro);
  opacity: 0.85;
  font-style: italic;
}

.text-body {
  font-size: var(--text-lg);
  line-height: 1.75;
  color: var(--color-viola-pallido);
}

.text-caption {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-viola-pallido);
  opacity: 0.8;
}

/* ===== LAYOUT COMPONENTS ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--margin-desktop);
}

@media (max-width: 768px) {
  .container { padding: 0 var(--margin-mobile); }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .container { padding: 0 var(--margin-tablet); }
}

/* ===== BUTTON SYSTEM ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-primary);
  font-weight: var(--font-weight-light);
  font-size: var(--text-base);
  letter-spacing: 0.1em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-viola-medio), var(--color-viola-chiaro));
  color: white;
  border-color: transparent;
}

.btn-primary:hover {
  background: transparent;
  border-color: var(--color-viola-chiaro);
  color: var(--color-viola-chiaro);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-viola-chiaro);
  border-color: var(--color-viola-chiaro);
}

.btn-secondary:hover {
  background: var(--color-viola-chiaro);
  color: var(--color-nero-viola);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

/* ===== CARD SYSTEM ===== */
.card {
  background: rgba(26, 23, 48, 0.6);
  border: 1px solid rgba(175, 169, 236, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
}

.card:hover {
  border-color: var(--color-viola-chiaro);
  background: rgba(26, 23, 48, 0.8);
  transform: translateY(-4px);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-viola-medio), var(--color-viola-chiaro));
}

.card-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-light);
  color: var(--color-viola-bianco);
  margin-bottom: var(--space-2);
}

.card-subtitle {
  font-size: var(--text-lg);
  color: var(--color-viola-chiaro);
  font-style: italic;
  margin-bottom: var(--space-4);
  opacity: 0.9;
}

.card-content {
  color: var(--color-viola-pallido);
  line-height: 1.75;
}

/* ===== TAG SYSTEM ===== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  border: 1px solid;
}

.tag-success { background: rgba(34, 197, 94, 0.1); color: var(--color-success); border-color: var(--color-success); }
.tag-warning { background: rgba(245, 158, 11, 0.1); color: var(--color-warning); border-color: var(--color-warning); }
.tag-error { background: rgba(239, 68, 68, 0.1); color: var(--color-error); border-color: var(--color-error); }
.tag-atp { background: rgba(79, 70, 229, 0.2); color: var(--color-atp); border-color: var(--color-atp); }
.tag-wta { background: rgba(236, 72, 153, 0.2); color: var(--color-wta); border-color: var(--color-wta); }
.tag-brand { background: rgba(127, 119, 221, 0.2); color: var(--color-viola-chiaro); border-color: var(--color-viola-chiaro); }

/* ===== METRICS DISPLAY ===== */
.metric { text-align: center; padding: var(--space-4); }
.metric-value { font-size: var(--text-4xl); font-weight: var(--font-weight-light); color: var(--color-viola-chiaro); display: block; line-height: 1; }
.metric-label { font-size: var(--text-xs); color: var(--color-viola-pallido); letter-spacing: 0.18em; text-transform: uppercase; opacity: 0.8; margin-top: var(--space-1); }
.metrics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-6); }

/* ===== PROGRESS BARS ===== */
.progress { width: 100%; height: 8px; background: rgba(26, 23, 48, 0.8); border-radius: var(--radius-full); overflow: hidden; }
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--color-viola-medio), var(--color-viola-chiaro)); border-radius: var(--radius-full); transition: width var(--transition-base); }

/* ===== FORM ELEMENTS ===== */
.form-group { margin-bottom: var(--space-4); }
.form-label { display: block; font-size: var(--text-sm); color: var(--color-viola-pallido); margin-bottom: var(--space-2); }
.form-input {
  width: 100%; padding: var(--space-3) var(--space-4); font-family: var(--font-primary); font-size: var(--text-base);
  color: var(--color-viola-bianco); background: rgba(26, 23, 48, 0.6); border: 1px solid rgba(175, 169, 236, 0.3);
  border-radius: var(--radius-md); transition: all var(--transition-base); outline: none;
}
.form-input:focus { border-color: var(--color-viola-chiaro); background: rgba(26, 23, 48, 0.8); }
.form-input::placeholder { color: var(--color-viola-pallido); opacity: 0.6; }

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInScale { from { opacity: 0; transform: scale(0.8); } to { opacity: 1; transform: scale(1); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.animate-fade-in-up { animation: fadeInUp 0.8s ease-out forwards; }
.animate-fade-in-scale { animation: fadeInScale 0.6s ease-out forwards; }
.animate-pulse { animation: pulse 2s infinite; }

.animate-stagger-1 { animation-delay: 0.1s; }
.animate-stagger-2 { animation-delay: 0.2s; }
.animate-stagger-3 { animation-delay: 0.3s; }
.animate-stagger-4 { animation-delay: 0.4s; }
.animate-stagger-5 { animation-delay: 0.5s; }

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; } .mb-2 { margin-bottom: var(--space-2); } .mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); } .mb-8 { margin-bottom: var(--space-8); }
.mt-0 { margin-top: 0; } .mt-2 { margin-top: var(--space-2); } .mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); } .mt-8 { margin-top: var(--space-8); }
.opacity-50 { opacity: 0.5; } .opacity-60 { opacity: 0.6; } .opacity-70 { opacity: 0.7; }
.opacity-80 { opacity: 0.8; } .opacity-90 { opacity: 0.9; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .text-hero { font-size: var(--text-4xl); }
  .text-tagline { font-size: var(--text-xl); }
  .h1, h1 { font-size: var(--text-3xl); }
  .h2, h2 { font-size: var(--text-2xl); }
  .card { padding: var(--space-6); }
  .btn-lg { padding: var(--space-3) var(--space-6); }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
}

@media (max-width: 480px) {
  .metrics-grid { grid-template-columns: 1fr; }
}