/*
Theme Name: FAST NUCES Aggregate Calculator
Theme URI: https://github.com/mtaha-23
Author: FAST NUCES
Author URI: https://nu.edu.pk
Description: A professional aggregate calculator theme for FAST NUCES admission test score calculation, merit lists, and resources.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: fast-nuces
Tags: education, calculator, university, admission
*/

/* =============================================
   CSS VARIABLES & ROOT
   ============================================= */
:root {
  --primary: #003366;
  --primary-dark: #001f40;
  --primary-light: #004d99;
  --accent: #00a86b;
  --accent-dark: #007a4d;
  --accent-light: #00d48a;
  --gold: #f4a300;
  --gold-light: #ffd166;
  --white: #ffffff;
  --off-white: #f8faff;
  --light-gray: #eef2f7;
  --mid-gray: #c0ccd8;
  --text-dark: #0d1b2a;
  --text-mid: #3d5a80;
  --text-light: #7a96b0;
  --card-shadow: 0 8px 32px rgba(0, 51, 102, 0.12);
  --card-hover-shadow: 0 16px 48px rgba(0, 51, 102, 0.2);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--off-white);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

/* =============================================
   TYPOGRAPHY
   ============================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.8rem); }
h4 { font-size: 1.2rem; }

p { color: var(--text-mid); }

/* =============================================
   LAYOUT UTILITIES
   ============================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

/* =============================================
   GOOGLE FONTS IMPORT
   ============================================= */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@500;600;700&family=DM+Sans:wght@300;400;500;600&family=JetBrains+Mono:wght@400;600&display=swap');

/* =============================================
   NAVIGATION
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(0, 51, 102, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-mark {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: white;
  font-size: 1.1rem;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  line-height: 1;
}

.logo-tagline {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.55);
  font-weight: 400;
  letter-spacing: 0.5px;
}

.site-nav ul {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

.site-nav ul li a {
  color: rgba(255,255,255,0.75);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  transition: var(--transition);
}

.site-nav ul li a:hover {
  color: white;
  background: rgba(255,255,255,0.1);
}

.site-nav ul li a.nav-cta {
  background: var(--accent);
  color: white;
  padding: 0.5rem 1.1rem;
}

.site-nav ul li a.nav-cta:hover {
  background: var(--accent-dark);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: var(--transition);
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  padding: 6rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,168,107,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(244,163,0,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 168, 107, 0.15);
  border: 1px solid rgba(0, 168, 107, 0.3);
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero-badge::before {
  content: '●';
  font-size: 0.5rem;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  color: white;
  margin-bottom: 1rem;
}

.hero h1 span {
  color: var(--gold-light);
}

.hero-desc {
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: white;
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin-top: 0.25rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 20px rgba(0, 168, 107, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 168, 107, 0.4);
  color: white;
}

.btn-secondary {
  background: rgba(255,255,255,0.1);
  color: white;
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.2);
  color: white;
}

.btn-gold {
  background: var(--gold);
  color: var(--primary-dark);
}

.btn-gold:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-preview {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
  width: 100%;
  max-width: 380px;
}

.preview-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.preview-icon {
  width: 40px;
  height: 40px;
  background: var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.preview-title {
  color: white;
  font-weight: 600;
}

.preview-sub {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
}

.preview-result {
  background: rgba(0, 168, 107, 0.1);
  border: 1px solid rgba(0, 168, 107, 0.25);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  text-align: center;
  margin-top: 1rem;
}

.preview-aggregate {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--accent-light);
  display: block;
}

.preview-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

/* =============================================
   BANNER / PROMO
   ============================================= */
.promo-banner {
  background: linear-gradient(90deg, var(--gold) 0%, #ffbe3f 100%);
  padding: 1.25rem 0;
}

.promo-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.promo-text {
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 1rem;
}

.promo-text span {
  opacity: 0.7;
  font-weight: 400;
  font-size: 0.9rem;
  display: block;
}

.promo-banner .btn {
  background: var(--primary);
  color: white;
  font-size: 0.875rem;
  padding: 0.65rem 1.35rem;
  white-space: nowrap;
}

.promo-banner .btn:hover {
  background: var(--primary-dark);
  color: white;
}

/* =============================================
   FEATURE CARDS
   ============================================= */
.features-section {
  background: var(--off-white);
}

.feature-card {
  background: white;
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(0,51,102,0.06);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.feature-card:hover {
  box-shadow: var(--card-hover-shadow);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.card-icon.blue { background: rgba(0,51,102,0.08); }
.card-icon.green { background: rgba(0,168,107,0.1); }
.card-icon.gold { background: rgba(244,163,0,0.1); }

.feature-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.15rem;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.card-link:hover {
  color: var(--accent);
  gap: 0.7rem;
}

.card-link::after {
  content: '→';
  transition: var(--transition);
}

/* =============================================
   CALCULATOR SECTIONS
   ============================================= */
.calculator-section {
  background: white;
  border-bottom: 1px solid var(--light-gray);
}

.calculator-section:nth-child(even) {
  background: var(--off-white);
}

.calc-wrapper {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  border: 1px solid rgba(0,51,102,0.08);
}

.calc-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 2rem;
  color: white;
}

.calc-header h3 { color: white; margin-bottom: 0.25rem; }
.calc-header p { color: rgba(255,255,255,0.65); font-size: 0.9rem; }

.program-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0;
  flex-wrap: wrap;
}

.prog-tab {
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.65);
  background: transparent;
  font-family: var(--font-body);
  transition: var(--transition);
}

.prog-tab.active, .prog-tab:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.5);
  color: white;
}

.prog-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.formula-info {
  background: rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 0.75rem 1.25rem;
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.formula-pill {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.8);
}

.formula-pill strong { color: var(--gold-light); }

.degrees-tag {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
}

.degrees-tag span { color: var(--accent-light); font-weight: 600; }

.calc-body {
  padding: 2rem;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.input-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
}

.input-group input {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--light-gray);
  border-radius: 10px;
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--off-white);
  transition: var(--transition);
  outline: none;
}

.input-group input:focus {
  border-color: var(--primary);
  background: white;
  box-shadow: 0 0 0 4px rgba(0,51,102,0.07);
}

.input-group input::placeholder { color: var(--mid-gray); }

.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-light);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--light-gray);
}

.calc-note {
  font-size: 0.8rem;
  color: var(--text-light);
  font-style: italic;
  margin-bottom: 1.25rem;
}

.btn-calculate {
  width: 100%;
  justify-content: center;
  padding: 1rem;
  font-size: 1rem;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  box-shadow: 0 4px 16px rgba(0,51,102,0.25);
}

.btn-calculate:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,51,102,0.3);
  color: white;
}

.results-box {
  background: linear-gradient(135deg, var(--off-white), #eef7f2);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-top: 1.5rem;
  display: none;
}

.results-box.visible { display: block; }

.result-main {
  text-align: center;
  margin-bottom: 1.5rem;
}

.result-num {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 600;
  color: var(--accent-dark);
  display: block;
  line-height: 1;
}

.result-label {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 0.4rem;
}

.result-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.breakdown-item {
  background: white;
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  text-align: center;
  border: 1px solid rgba(0,51,102,0.08);
}

.breakdown-item .val {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary);
  display: block;
}

.breakdown-item .key {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 0.2rem;
}

/* =============================================
   MERIT TABLE
   ============================================= */
.merit-section { background: white; }

.merit-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(244,163,0,0.1);
  border: 1px solid rgba(244,163,0,0.3);
  color: #b37a00;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(0,51,102,0.08);
}

.merit-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.merit-table th {
  background: var(--primary);
  color: white;
  padding: 1rem 1.25rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.3px;
}

.merit-table th:first-child { border-radius: 0; }

.merit-table td {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--light-gray);
  color: var(--text-mid);
}

.merit-table tr:last-child td { border-bottom: none; }

.merit-table tr:nth-child(even) td { background: rgba(0,51,102,0.025); }

.merit-table tr:hover td { background: rgba(0, 168, 107, 0.05); }

.merit-table td:first-child { font-weight: 600; color: var(--primary); }

.merit-table td.merit-high { color: var(--accent-dark); font-weight: 700; }
.merit-table td.merit-low { color: var(--gold); font-weight: 600; }
.merit-table td.merit-na { color: var(--mid-gray); font-style: italic; }

/* =============================================
   FEEDBACK SECTION
   ============================================= */
.feedback-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.feedback-section .section-title,
.feedback-section .section-subtitle { color: white; }
.feedback-section .section-subtitle { color: rgba(255,255,255,0.6); }

.feedback-card {
  max-width: 600px;
  margin: 0 auto;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(10px);
}

.stars-row {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.star-btn {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  border: 2px solid rgba(255,255,255,0.15);
  background: transparent;
  cursor: pointer;
  font-size: 1.4rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.star-btn:hover, .star-btn.active {
  border-color: var(--gold);
  background: rgba(244,163,0,0.15);
  transform: scale(1.1);
}

.feedback-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feedback-form input,
.feedback-form textarea {
  padding: 0.85rem 1.1rem;
  background: rgba(255,255,255,0.08);
  border: 1.5px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  color: white;
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: var(--transition);
  outline: none;
  resize: vertical;
}

.feedback-form input::placeholder,
.feedback-form textarea::placeholder { color: rgba(255,255,255,0.35); }

.feedback-form input:focus,
.feedback-form textarea:focus {
  border-color: var(--accent);
  background: rgba(255,255,255,0.12);
}

.btn-submit {
  background: var(--accent);
  color: white;
  width: 100%;
  justify-content: center;
  padding: 1rem;
  font-size: 1rem;
  box-shadow: 0 4px 20px rgba(0,168,107,0.3);
}

.btn-submit:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,168,107,0.4);
  color: white;
}

/* =============================================
   FAQ SECTION
   ============================================= */
.faq-section { background: var(--off-white); }

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: white;
  border-radius: var(--radius);
  border: 1px solid rgba(0,51,102,0.08);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,51,102,0.05);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
  user-select: none;
}

.faq-question:hover { color: var(--accent); }

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: var(--transition);
  color: var(--primary);
}

.faq-item.open .faq-icon {
  background: var(--accent);
  color: white;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
  font-size: 0.95rem;
  line-height: 1.7;
}

/* =============================================
   WHATSAPP CTA
   ============================================= */
.whatsapp-section {
  background: #075e54;
  padding: 3rem 0;
}

.wa-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.wa-text h3 { color: white; margin-bottom: 0.25rem; }
.wa-text p { color: rgba(255,255,255,0.65); }

.btn-wa {
  background: #25d366;
  color: white;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  font-size: 1rem;
  transition: var(--transition);
}

.btn-wa:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37,211,102,0.5);
  color: white;
}

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--primary-dark);
  padding: 3rem 0 2rem;
  color: rgba(255,255,255,0.6);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand .logo-name { margin-bottom: 0.75rem; display: block; }

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.45);
  max-width: 280px;
}

.footer-col h4 {
  color: white;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul li a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  transition: var(--transition);
}

.footer-col ul li a:hover { color: var(--accent-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p { font-size: 0.8rem; }

.footer-bottom a {
  color: var(--accent-light);
  transition: var(--transition);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .site-nav { display: none; }
  .site-nav.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--primary-dark);
    padding: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
  }
  .site-nav.open ul { flex-direction: column; width: 100%; }
  .site-nav.open ul li a { display: block; padding: 0.75rem 1rem; }
  .hamburger { display: flex; }
  .calc-grid { grid-template-columns: 1fr; }
  .result-breakdown { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .promo-banner .container { flex-direction: column; text-align: center; }
  .hero-stats { gap: 1.25rem; }
  .wa-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .result-breakdown { grid-template-columns: 1fr; }
}