/* ==========================================================================
   Zth Orbit - Premium Design System Stylesheet
   ========================================================================== */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&family=Outfit:wght@100..900&display=swap');

:root {
    /* Color Palette */
    --bg-primary: #000000;
    --bg-secondary: #0d0d0d;
    --bg-tertiary: #141414;
    --bg-glass: rgba(13, 13, 13, 0.75);
    
    --text-primary: #ffffff;
    --text-secondary: #c0c0c0;
    --text-muted: #808080;
    
    --accent-gold: #fcb900;
    --accent-gold-rgb: 252, 185, 0;
    --accent-gold-hover: #d19a00;
    --accent-orange: #ff6900;
    --accent-blue: #0693e3;
    
    --border-color: #222222;
    --border-glowing: rgba(252, 185, 0, 0.3);
    
    /* Layout & Shadows */
    --max-width: 1200px;
    --header-height: 80px;
    --border-radius: 12px;
    --transition-fast: 0.25s ease;
    --transition-normal: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 20px rgba(252, 185, 0, 0.15);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Montserrat', sans-serif;
}

/* ==========================================================================
   Resets & Base Styles
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text-primary);
}

p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 400;
}

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

ul {
    list-style: none;
}

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

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

/* ==========================================================================
   Typography Utilities
   ========================================================================== */
.text-gold {
    color: var(--accent-gold);
}

.text-gradient-gold {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.heading-xl {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 300;
    text-transform: uppercase;
}

.heading-lg {
    font-size: clamp(2rem, 5vw, 3rem);
    text-transform: uppercase;
    position: relative;
    margin-bottom: 1rem;
}

.heading-lg::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-gold);
    margin-top: 0.5rem;
}

.heading-md {
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
}

.heading-sm {
    font-size: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   Buttons & Links
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary {
    background-color: var(--accent-gold);
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    background-color: var(--accent-gold-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(252, 185, 0, 0.25);
}

.btn-outline {
    border: 1px solid var(--text-primary);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.btn svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translate(2px, -2px);
}

/* ==========================================================================
   Header Component
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: var(--transition-normal);
}

.header.scrolled {
    height: 70px;
    background-color: var(--bg-glass);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-premium);
}

.header-container {
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 48px;
    width: auto;
    transition: var(--transition-normal);
}

.header.scrolled .logo img {
    height: 40px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-gold);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1100;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

/* Mobile Menu Open States */
.menu-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   Footer Component (Stay in Touch)
   ========================================================================== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 6rem 0 3rem;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 5rem;
    margin-bottom: 5rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.contact-text h2 {
    margin-bottom: 1rem;
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.contact-item:hover {
    border-color: var(--accent-gold);
    transform: translateX(5px);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(252, 185, 0, 0.1);
    color: var(--accent-gold);
}

.contact-icon svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.contact-details p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.contact-details strong {
    font-size: 1.05rem;
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.social-icon:hover {
    color: var(--accent-gold);
    border-color: var(--accent-gold);
    transform: translateY(-3px) scale(1.05);
}

.social-icon svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.enquiry-box {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 3rem;
    box-shadow: var(--shadow-premium);
    position: relative;
    overflow: hidden;
}

.enquiry-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-orange));
}

.enquiry-box h3 {
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 0.9rem 1.2rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.form-input:focus {
    border-color: var(--accent-gold);
    box-shadow: 0 0 10px rgba(252, 185, 0, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-nav {
    display: flex;
    gap: 1.5rem;
}

.footer-nav-link:hover {
    color: var(--text-primary);
}

/* ==========================================================================
   Common Layout Styles
   ========================================================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
    position: relative;
}

.section-dark {
    background-color: var(--bg-secondary);
}

.section-center {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 5rem;
}

.section-center p {
    margin-top: 1.25rem;
    font-size: 1.05rem;
}

/* Grid helper */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

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

/* ==========================================================================
   Micro-animations
   ========================================================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-on-scroll.appear {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* Pulse Glow animation */
@keyframes pulseGlow {
    0% {
        box-shadow: 0 0 10px rgba(252, 185, 0, 0.1);
    }
    50% {
        box-shadow: 0 0 20px rgba(252, 185, 0, 0.3);
    }
    100% {
        box-shadow: 0 0 10px rgba(252, 185, 0, 0.1);
    }
}

.pulse-glow {
    animation: pulseGlow 3s infinite ease-in-out;
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }
    .footer-container {
        gap: 3rem;
    }
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--bg-secondary);
        border-left: 1px solid var(--border-color);
        padding: 8rem 3rem 3rem;
        display: flex;
        flex-direction: column;
        gap: 2rem;
        transition: right var(--transition-normal);
        z-index: 1050;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 2.5rem;
    }
    
    .nav-link {
        font-size: 1.2rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

@media (max-width: 485px) {
    .nav-menu {
        width: 100%;
    }
    .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    .enquiry-box {
        padding: 2rem 1.5rem;
    }
}