/* Root variables for colors & fonts */
:root {
    --emerald: #065f46;
    --emerald-dark: #064e3b;
    --accent: #a3b18a;
    --brand-dark: #1f2937;
    --brand-bg: #f6fefc;
    --shadow: 0 8px 32px 0 rgba(31, 41, 55, 0.18);
    --radius: 2rem;
    --font-title: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
  }
  
  html {
    scroll-behavior: smooth;
    font-family: var(--font-body);
    background: var(--brand-bg);
  }
  
  /* Navbar */
  .navbar {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(255,255,255,0.82);
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    z-index: 30;
    transition: background 0.3s;
  }
  .navbar.scrolled {
    background: rgba(255,255,255,0.96);
    box-shadow: 0 4px 16px rgba(31,41,55,0.08);
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    max-width: 1152px;
    margin: 0 auto;
    padding: 1rem 1.5rem;  
    height: 70px;           
    box-sizing: border-box;
    gap: 6.5rem; 
  }
  
  .brand {
    font-family: var(--font-title); font-size: 2rem; color: var(--emerald); font-weight: 700;
    text-decoration: none;
    letter-spacing: 1px;
  }
  .nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
  .nav-links li { }
  .nav-links a {
    color: #374151; text-decoration: none; font-weight: 500; font-size: 1.07rem;
    padding: 0.25rem 0;
    border-bottom: 2px solid transparent;
    transition: color 0.16s, border-bottom 0.16s;
  }
  .nav-links a:hover, .nav-links a:focus { color: var(--emerald); border-bottom: 2px solid var(--emerald); outline: none;}
  .nav-btn { margin-left: 1rem; }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.7rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1.08rem;
    cursor: pointer;
    border: none;
    box-shadow: 0 4px 20px 0 rgba(16, 185, 129, 0.11);
    letter-spacing: 0.01em;
    transition: background 0.18s, box-shadow 0.18s, transform 0.14s;
    outline: none;
    background: none;
  }
  .btn-primary {
    background: linear-gradient(93deg, #065f46 65%, #a3b18a 100%);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 6px 24px 0 rgba(16,185,129,0.18);
  }
  .btn-primary:hover, .btn-primary:focus {
    background: linear-gradient(93deg, #064e3b 70%, #b5c99a 100%);
    color: #fff;
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 10px 28px rgba(16, 185, 129, 0.22);
  }
  .btn-secondary {
    background: #374151;
    color: #fff;
  }
  .btn-secondary:hover { background: #1f2937; }
  .btn-ai {
    background: linear-gradient(90deg, #10b981, #0d9488 90%);
    color: #fff;
  }
  .btn-ai:hover { background: linear-gradient(90deg, #059669, #0e7490); }
  .hero-btn { margin: 0.25rem; }
  
  /* Hamburger mobile nav */
  .nav-toggle {
    background: none; border: none; cursor: pointer;
    width: 38px; height: 38px; display: none; flex-direction: column; gap: 7px; align-items: flex-end; justify-content: center;
  }
  .nav-toggle span {
    display: block; width: 100%; height: 3px; background: #374151; border-radius: 2px;
    transition: all 0.25s;
  }
  @media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .mobile-menu {
      display: none; position: absolute; left: 0; right: 0; top: 64px; background: rgba(255,255,255,0.98);
      box-shadow: 0 8px 40px rgba(31,41,55,0.12);
      border-radius: 0 0 1.5rem 1.5rem; z-index: 20;
      animation: slideDown 0.3s;
    }
    .mobile-menu.active { display: block; }
    .mobile-menu ul { list-style: none; padding: 2rem 0; margin: 0; }
    .mobile-menu li { text-align: center; margin: 0.75rem 0; }
    .mobile-menu a { font-size: 1.25rem; color: #1f2937; text-decoration: none; }
    .mobile-menu .nav-btn { margin-top: 1.5rem;}
  }
  @keyframes slideDown { from { opacity:0; transform: translateY(-20px);} to { opacity:1; transform: translateY(0);} }
  
  /* Hero Section */
  .hero {
    background: linear-gradient(120deg, #a3b18a 0%, #588157 90%);
    min-height: 80vh;
    display: flex; align-items: center; padding: 3rem 0;
    position: relative;
  }
  .hero-inner {
    max-width: 640px; margin: 0 auto; text-align: center;
  }
  .badge {
    background: rgba(255,255,255,0.22); border-radius: 99px; color: var(--emerald-dark);
    display: inline-block; padding: 0.3em 1.2em; font-weight: 500; margin-bottom: 1.2rem; font-size: 1rem; letter-spacing: 0.04em;
    backdrop-filter: blur(2px);
    box-shadow: 0 1px 7px rgba(31,41,55,0.06);
  }
  .hero-title {
    font-size: 3.2rem; line-height: 1.07; color: #fff; font-family: var(--font-title);
    font-weight: 800; margin-bottom: 1rem; text-shadow: 0 8px 32px rgba(31,41,55,0.19);
  }
  .hero-desc {
    color: #f6fefc; font-size: 1.28rem; margin-bottom: 2rem; font-weight: 500; text-shadow: 0 2px 8px rgba(31,41,55,0.11);
  }
  @media (max-width: 600px) {
    .hero-title { font-size: 2rem; }
    .hero-inner { padding: 0 0.5rem;}
  }
  
  /* Section */
  .section {
    padding: 5rem 0 4.5rem 0;
    background: none;
  }
  .section-title {
    font-size: 2.2rem; text-align: center; margin-bottom: 2.3rem; color: var(--brand-dark);
    font-weight: bold; letter-spacing: 0.02em;
  }
  @media (max-width: 600px) {
    .section { padding: 3rem 0; }
  }
  
  /* Glass Section/Glass Cards */
  .glass-section {
    background: rgba(255,255,255,0.45);
    backdrop-filter: blur(8px);
  }
  .card-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.2rem; margin-top: 2.2rem;
  }
  .glass-card {
    background: rgba(255,255,255,0.52); border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem 1.5rem; text-align: center;
    transition: transform 0.18s, box-shadow 0.22s, background 0.2s;
    position: relative; overflow: hidden;
    min-height: 290px;
    cursor: pointer;
  }
  .glass-card:focus, .glass-card:hover {
    background: rgba(242,255,241,0.93);
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 12px 32px rgba(31,41,55,0.21);
    outline: 2px solid var(--emerald);
  }
  .icon-circle {
    width: 64px; height: 64px; background: linear-gradient(145deg, #e7ffe7 70%, #d1fae5 100%);
    margin: 0 auto 1.25rem auto; border-radius: 99px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 2px 10px rgba(16,185,129,0.08);
    animation: pulseIcon 2.7s infinite alternate;
  }
  .icon-circle svg {
    width: 38px; height: 38px; stroke: var(--emerald); stroke-width: 2.5; fill: none;
    display: block;
  }
  @keyframes pulseIcon {
    from { transform: scale(1);}
    to { transform: scale(1.09);}
  }
  .glass-card h3 { font-family: var(--font-title); font-size: 1.32rem; font-weight: 700; margin-bottom: 0.6rem; color: var(--emerald-dark);}
  .glass-card p { color: #444; font-size: 1rem; }
  
  /* About Section */
  .about-bg { background: #fff; }
  .about-content { display: flex; gap: 3.4rem; align-items: center; justify-content: center; max-width: 1050px; margin: 0 auto;}
  .about-img { flex: 0 0 270px; }
  .about-img img {
    border-radius: 999px; width: 220px; height: 220px; object-fit: cover;
    box-shadow: 0 8px 48px rgba(88,129,87,0.19);
    display: block; margin: 0 auto;
  }
  .about-text { flex: 1 1 320px; }
  .about-text p { font-size: 1.09rem; color: #525252; margin-bottom: 0.95rem; }
  @media (max-width: 850px) {
    .about-content { flex-direction: column; text-align: center; gap: 2rem;}
    .about-img { margin-bottom: 1.3rem;}
  }
  
  /* Philosophy */
  .philosophy-bg {
    background: linear-gradient(90deg, #065f46 10%, #a3b18a 100%);
    color: #fff;
    padding-top: 5.5rem; padding-bottom: 5.5rem;
  }
  .philosophy-desc {
    font-size: 1.17rem; max-width: 680px; margin: 0 auto; color: #f1faee; text-align: center; line-height: 1.7;
  }
  
  /* AI Tools */
  .hidden {
    display: none !important;
  }
  .ai-tools-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2.5rem;
    margin-top: 2.2rem;
  }
  .input-group {
    display: flex; flex-direction: column; gap: 0.8rem; margin: 1.2rem 0 0 0;
  }
  .input-group textarea, .input-group input {
    padding: 0.85rem 1rem;
    border-radius: 1.1rem; border: 1.5px solid #e5e7eb; background: rgba(255,255,255,0.91);
    box-shadow: 0 1px 6px rgba(31,41,55,0.07);
    font-size: 1rem; color: #222; resize: vertical;
    transition: border 0.19s;
  }
  .input-group textarea:focus, .input-group input:focus { border: 1.5px solid var(--emerald);}
  .loader {
    margin: 1.1rem auto; border: 4px solid #f3f3f3; border-radius: 50%; border-top: 4px solid #3498db; width: 30px; height: 30px; animation: spin 1.3s linear infinite;
    display: flex; align-items: center; justify-content: center;
  }
  @keyframes spin { 0% { transform: rotate(0deg);} 100% { transform: rotate(360deg);} }
  .output-box {
    margin-top: 1.1rem;
    background: #e8fdf5;
    border-radius: 1rem;
    padding: 1rem 1.1rem;
    min-height: 40px;
    color: #0d3b27;
    white-space: pre-line;
    font-size: 1.02rem;
  }
  
  /* Testimonials */
  .testimonial-bg { background: #f6fefc; }
  .testimonial-slider { display: flex; gap: 2.5rem; margin-top: 2.2rem; transition: transform 0.3s; }
  .testimonial-card {
    background: rgba(255,255,255,0.98); border-radius: 2rem;
    box-shadow: 0 6px 28px rgba(88,129,87,0.14);
    padding: 2.3rem 1.8rem 2rem 1.8rem;
    max-width: 420px; min-width: 270px;
    margin: 0 auto;
    position: relative;
    display: flex; flex-direction: column; align-items: center;
  }
  .testimonial-quote {
    font-size: 3.4rem; color: var(--accent);
    font-family: var(--font-title); font-weight: 800;
    margin-bottom: 1.1rem;
    position: absolute; left: 22px; top: 22px;
    opacity: 0.23; user-select: none;
  }
  .testimonial-card p { color: #393939; margin-bottom: 1.6rem; font-size: 1.08rem; font-style: italic; text-align: center; }
  .testimonial-user { display: flex; align-items: center; gap: 1.1rem;}
  .testimonial-user img {
    width: 54px; height: 54px; border-radius: 99px; box-shadow: 0 2px 12px rgba(31,41,55,0.07);
    object-fit: cover;
  }
  .testimonial-user strong { color: var(--emerald-dark);}
  .testimonial-role { font-size: 0.98rem; color: #5f735d;}
  .testimonial-controls {
    display: flex; gap: 0.6rem; justify-content: center; margin-top: 2rem;
  }
  .testimonial-dot {
    width: 14px; height: 14px; border-radius: 50%;
    background: #e7eae2; border: none; outline: none; cursor: pointer; transition: background 0.17s;
  }
  .testimonial-dot.active, .testimonial-dot:focus { background: var(--emerald);}
  @media (max-width: 850px) {
    .testimonial-slider { overflow: hidden; }
    .testimonial-card { min-width: 100%; max-width: 99vw;}
  }
  @media (max-width: 600px) {
    .testimonial-card { padding: 1.6rem 0.9rem;}
    .testimonial-quote { font-size: 2.1rem; left: 13px; top: 13px;}
  }
  
  /* Contact */
  .contact-bg { background: #fff; }
  .contact-container { max-width: 550px; margin: 0 auto;}
  .contact-header { text-align: center; margin-bottom: 1.7rem;}
  .contact-form { margin-top: 1.2rem; display: flex; flex-direction: column; gap: 1.6rem; }
  .form-group { position: relative; }
  .form-group input, .form-group textarea {
    width: 100%; padding: 1.1rem 1rem; border-radius: 1.1rem; border: 1.5px solid #e5e7eb; background: rgba(255,255,255,0.91);
    font-size: 1.06rem; color: #222; box-shadow: 0 1px 6px rgba(31,41,55,0.05);
    outline: none; transition: border 0.19s;
    resize: none;
  }
  .form-group input:focus, .form-group textarea:focus { border: 1.5px solid var(--emerald);}
  .form-group label {
    position: absolute; top: 1.08rem; left: 1.08rem; color: #8a998a; background: none; font-size: 1.02rem; pointer-events: none; transition: 0.18s;
  }
  .form-group input:focus + label,
  .form-group input:not(:placeholder-shown) + label,
  .form-group textarea:focus + label,
  .form-group textarea:not(:placeholder-shown) + label {
    top: -0.75rem; left: 0.85rem; font-size: 0.92rem; color: var(--emerald-dark); background: #fff; padding: 0 0.45em;
    border-radius: 7px;
  }
  .send-btn { width: 100%; font-size: 1.11rem; padding: 1rem 0;}
  
  .footer {
    background: #1f2937; color: #f3f3f3; padding: 3rem 0;
  }
  .footer-inner {
    max-width: 1100px; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 2rem;
  }
  .footer-brand { font-size: 2rem; font-weight: 700; margin-bottom: 0.3rem; color: #a3b18a; }
  .footer-tagline { color: #e5e7eb; font-size: 1.1rem;}
  .footer-links { display: flex; flex-direction: column; gap: 0.4rem; margin: 0; padding: 0; list-style: none;}
  .footer-links a { color: #e7ffe7; text-decoration: none; font-size: 1.07rem; opacity: 0.9;}
  .footer-links a:hover, .footer-links a:focus { color: #fff;}
  .footer-social { display: flex; gap: 1.15rem; align-items: center; margin-top: 1.2rem;}
  .footer-social a { color: #a3b18a; display: flex; width: 32px; height: 32px;}
  .footer-social svg { width: 24px; height: 24px; fill: currentColor;}
  .footer-copy { margin-top: 1.1rem; font-size: 0.98rem; color: #cfcfcf;}
  @media (max-width: 850px) {
    .footer-inner { flex-direction: column; gap: 1.5rem; align-items: flex-start;}
  }
  .font-playfair { font-family: var(--font-title);}