/* ===================================
   Global Styles & Reset
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Gold & Dark Theme */
    --primary-color: #d4af37;
    --secondary-color: #c9a961;
    --accent-color: #f4d47c;
    --bronze-dark: #8b6914;
    --text-primary: #ffffff;
    --text-secondary: #d1d5db;
    --bg-overlay: rgba(0, 0, 0, 0.65);
    --success-color: #4ade80;
    --gradient-start: rgba(17, 24, 39, 0.92);
    --gradient-end: rgba(31, 41, 55, 0.88);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    background: url('./Assets/images/R713 backdrop.png') no-repeat center center fixed;
    background-size: cover;
    position: relative;
}

/* ===================================
   Background Overlay
   =================================== */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    z-index: -1;
}

/* ===================================
   Main Container
   =================================== */
.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

/* ===================================
   Logo Section
   =================================== */
.logo-container {
    margin-bottom: 2rem;
    text-align: center;
}

.logo {
    max-width: 200px;
    height: auto;
    filter: drop-shadow(0 10px 25px rgba(0, 0, 0, 0.3));
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

/* ===================================
   Content Section
   =================================== */
.content {
    text-align: center;
    max-width: 1200px;
    width: 100%;
}

.main-heading {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color), #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.sub-heading {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.tagline {
    margin: 2rem auto;
    max-width: 700px;
}

.tagline p {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.8;
    letter-spacing: 0.5px;
}

/* ===================================
   Features Section
   =================================== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem auto;
    max-width: 1000px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 2rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.feature-item:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 40px rgba(212, 175, 55, 0.3);
    border-color: rgba(212, 175, 55, 0.4);
}

.feature-item .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
}

.feature-item h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* ===================================
   Notification Section
   =================================== */
.notify-section {
    margin: 3rem auto;
    max-width: 600px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.notify-section h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.notify-section > p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.notify-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.email-input {
    flex: 1;
    min-width: 250px;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
    outline: none;
    transition: all 0.3s ease;
}

.email-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.email-input:focus {
    border-color: var(--accent-color);
    background: rgba(255, 255, 212, 175, 55
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
}

.notify-btn {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #1a1a1a;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.notify-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.6);
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

.notify-btn:active {
    transform: translateY(0);
}

.form-message {
    font-size: 0.95rem;
    font-weight: 500;
    margin-top: 1rem;
    min-height: 1.5rem;
}

/* ===================================
   Contact Info
   =================================== */
.contact-info {
    margin: 2rem 0;
}

.contact-info p {
    font-size: 1rem;
    color: var(--text-secondary);
}

.contact-info a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

/* ===================================
   Footer
   =================================== */
.footer {
    margin-top: auto;
    padding: 2rem 0 1rem;
    text-align: center;
}

.footer p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 300;
}

/* ===================================
   Animations
   =================================== */
.animate-fade-in {
    opacity: 0;
    transition: opacity 0.8s ease;
}

.animate-fade-in.visible {
    opacity: 1;
}

.animate-slide-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.animate-slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem;
    }
    
    .logo {
        max-width: 150px;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .notify-form {
        flex-direction: column;
    }
    
    .email-input,
    .notify-btn {
        width: 100%;
    }
    
    .notify-section {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .main-heading {
        letter-spacing: 2px;
    }
    
    .sub-heading {
        letter-spacing: 0.5px;
    }
    
    .feature-item {
        padding: 1.5rem 1rem;
    }
}

/* ===================================
   Accessibility
   =================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for keyboard navigation */
a:focus,
button:focus,
input:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}