/*
Theme Name: Uncle Sam Solar
Theme URI: https://unclesam.ro
Author: Uncle Sam SRL
Author URI: https://unclesam.ro
Description: Temă custom premium pentru Uncle Sam SRL – panouri solare, fotovoltaice și energie verde. WooCommerce ready, modern, responsive, orientat pe conversie.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 6.7
WC requires at least: 8.0
WC tested up to: 9.4
Requires PHP: 8.1
License: Proprietary
License URI: https://unclesam.ro
Text Domain: uncle-sam-solar
Tags: woocommerce, solar, energy, business, responsive, custom
*/

/* ============================================================
   DESIGN SYSTEM – CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* --- Culori principale (paleta Uncle Sam) --- */
  --color-primary:        #3AB79C;   /* teal-mint – culoarea brandului */
  --color-primary-dark:   #2A9480;
  --color-primary-light:  #57CAAE;
  --color-primary-50:     #E6F8F4;
  --color-primary-100:    #B8EAE0;

  --color-accent:         #87C425;   /* lime green – accent / highlight */
  --color-accent-dark:    #6AA01C;
  --color-accent-light:   #A8DB55;
  --color-accent-50:      #F2FAE3;

  --color-tech:           #4B7BCD;   /* blue – gradient dreapta */
  --color-tech-dark:      #3A63AC;

  /* --- Neutrale --- */
  --color-dark:           #0F172A;
  --color-dark-medium:    #1E293B;
  --color-gray-600:       #475569;
  --color-gray-400:       #94A3B8;
  --color-gray-200:       #E2E8F0;
  --color-gray-100:       #F1F5F9;
  --color-white:          #FFFFFF;

  /* --- Status --- */
  --color-success:        #16A34A;
  --color-warning:        #F59E0B;
  --color-error:          #DC2626;
  --color-sale:           #EF4444;
  --color-new:            #8B5CF6;

  /* --- Tipografie --- */
  --font-body:            'Inter', system-ui, -apple-system, sans-serif;
  --font-heading:         'Poppins', 'Inter', sans-serif;
  --font-mono:            'JetBrains Mono', 'Courier New', monospace;

  --text-xs:    0.75rem;    /* 12px */
  --text-sm:    0.875rem;   /* 14px */
  --text-base:  1rem;       /* 16px */
  --text-lg:    1.125rem;   /* 18px */
  --text-xl:    1.25rem;    /* 20px */
  --text-2xl:   1.5rem;     /* 24px */
  --text-3xl:   1.875rem;   /* 30px */
  --text-4xl:   2.25rem;    /* 36px */
  --text-5xl:   3rem;       /* 48px */
  --text-6xl:   3.75rem;    /* 60px */

  --fw-normal:  400;
  --fw-medium:  500;
  --fw-semibold: 600;
  --fw-bold:    700;
  --fw-extrabold: 800;

  --lh-tight:   1.2;
  --lh-snug:    1.375;
  --lh-normal:  1.5;
  --lh-relaxed: 1.625;
  --lh-loose:   2;

  /* --- Spacing --- */
  --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 --- */
  --container-sm:  640px;
  --container-md:  768px;
  --container-lg:  1024px;
  --container-xl:  1280px;
  --container-2xl: 1440px;
  --container-pad: clamp(1rem, 4vw, 2rem);

  /* --- Borders --- */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-2xl:  24px;
  --radius-full: 9999px;
  --border-color: var(--color-gray-200);

  /* --- Shadows --- */
  --shadow-sm:   0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:   0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg:   0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl:   0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --shadow-card: 0 2px 8px rgba(15,23,42,0.08);
  --shadow-card-hover: 0 8px 24px rgba(15,23,42,0.15);

  /* --- Tranziții --- */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;

  /* --- Z-index --- */
  --z-base:    1;
  --z-dropdown: 100;
  --z-sticky:  200;
  --z-overlay: 300;
  --z-modal:   400;
  --z-toast:   500;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

/* plasă de siguranță împotriva scroll-ului orizontal pe mobil */
html, body {
  overflow-x: clip;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-relaxed);
  color: var(--color-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Iconițele inline SVG (uss_icon) — centrate indiferent de context */
.uss-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 0;
}

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

a:hover {
  color: var(--color-primary-light);
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  color: var(--color-dark);
}

h1 { font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl)); }
h2 { font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl)); }
h3 { font-size: clamp(var(--text-xl), 3vw, var(--text-3xl)); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p { margin-bottom: var(--space-4); }
p:last-child { margin-bottom: 0; }

/* ============================================================
   LAYOUT UTILITARE
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.container--wide {
  max-width: var(--container-2xl);
}

.container--narrow {
  max-width: var(--container-md);
}

.section {
  padding-top: clamp(var(--space-12), 6vw, var(--space-24));
  padding-bottom: clamp(var(--space-12), 6vw, var(--space-24));
}

.section--sm {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section--lg {
  padding-top: clamp(var(--space-16), 8vw, var(--space-32));
  padding-bottom: clamp(var(--space-16), 8vw, var(--space-32));
}

.section-header {
  text-align: center;
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-16));
}

.section-label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-600);
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--lh-relaxed);
}

/* Grid helpers */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ============================================================
   BUTOANE
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  line-height: 1;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--accent {
  background-color: var(--color-accent);
  color: var(--color-dark);
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

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

.btn--outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

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

.btn--ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: transparent;
}

.btn--ghost:hover {
  background-color: var(--color-primary-50);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--text-sm);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
}

.btn--full {
  width: 100%;
}

.btn--icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ============================================================
   FORMULARE
   ============================================================ */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--color-dark-medium);
  margin-bottom: var(--space-2);
}

.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  color: var(--color-dark);
  background: var(--color-white);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}

.form-control:hover {
  border-color: var(--color-gray-400);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(58, 183, 156, 0.15);
}

.form-control::placeholder {
  color: var(--color-gray-400);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  margin-top: var(--space-1);
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header, .site-footer,
  .hero__visual, .newsletter-section,
  .cta-section { display: none !important; }
}