/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    position: relative;
}

/* Animated Background Media (Videos + Images) */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
    background: #000;
}

.bg-media {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    animation: mediaTransition 42s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    will-change: opacity, transform;
    transition: opacity 2s ease-in-out;
}

/* Video Backgrounds */
.bg-video {
    object-fit: cover;
    object-position: center;
    filter: brightness(1.05) contrast(1.1);
}

/* Image Backgrounds */
.bg-image {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* Animation Delays for 7 items */
.bg-1 {
    animation-delay: 0s;
}

.bg-2 {
    animation-delay: 6s;
}

.bg-3 {
    animation-delay: 12s;
}

.bg-4 {
    animation-delay: 18s;
}

.bg-5 {
    animation-delay: 24s;
}

.bg-6 {
    animation-delay: 30s;
}

.bg-7 {
    animation-delay: 36s;
}

@keyframes mediaTransition {
    0% { 
        opacity: 0;
        transform: scale(1.05);
    }
    5% { 
        opacity: 1;
        transform: scale(1.05);
    }
    12% { 
        opacity: 1;
        transform: scale(1.08);
    }
    14% { 
        opacity: 0;
        transform: scale(1.1);
    }
    100% { 
        opacity: 0;
        transform: scale(1.1);
    }
}

/* Glass Morphism Overlay with Vignette Effect */
.glass-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(
            ellipse at center,
            rgba(15, 23, 42, 0.2) 0%,
            rgba(15, 23, 42, 0.5) 70%,
            rgba(15, 23, 42, 0.7) 100%
        );
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    z-index: -1;
}

/* Additional vignette blur on edges */
.glass-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    mask-image: radial-gradient(
        ellipse at center,
        transparent 30%,
        rgba(0, 0, 0, 0.3) 60%,
        rgba(0, 0, 0, 0.8) 100%
    );
    -webkit-mask-image: radial-gradient(
        ellipse at center,
        transparent 30%,
        rgba(0, 0, 0, 0.3) 60%,
        rgba(0, 0, 0, 0.8) 100%
    );
    pointer-events: none;
}

/* Logo */
.logo {
    position: fixed;
    top: 2rem;
    left: 2.5rem;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: fadeInDown 0.8s ease;
}

.logo-icon {
    width: 50px;
    height: 50px;
    display: inline-block;
    animation: spinToAfrica 2s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
    border-radius: 50%;
    object-fit: cover;
}

@keyframes spinToAfrica {
    0% {
        transform: rotate(0deg);
    }
    80% {
        transform: rotate(1440deg); /* 4 full spins */
    }
    100% {
        transform: rotate(1440deg);
    }
}

.logo-text {
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 0.02em;
    opacity: 0;
    transform: translateX(-30px);
    animation: slideInFromLeft 0.8s ease 2s forwards;
}

@keyframes slideInFromLeft {
    0% {
        opacity: 0;
        transform: translateX(-30px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Hero Content */
.hero-content {
    position: fixed;
    left: 4rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    max-width: 600px;
    animation: fadeInLeft 1s ease 0.3s both;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.badge-icon {
    color: #10b981;
    font-size: 0.5rem;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.98);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    height: 1.2em;
    position: relative;
}

.rotating-word {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    transform: translateY(20px);
    white-space: nowrap;
    animation: wordRotate 12s infinite;
}

.rotating-word[data-index="0"] {
    animation-delay: 0s;
}

.rotating-word[data-index="1"] {
    animation-delay: 3s;
}

.rotating-word[data-index="2"] {
    animation-delay: 6s;
}

.rotating-word[data-index="3"] {
    animation-delay: 9s;
}

@keyframes wordRotate {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    5% {
        opacity: 1;
        transform: translateY(0);
    }
    20% {
        opacity: 1;
        transform: translateY(0);
    }
    25% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 0;
        transform: translateY(-20px);
    }
}

.hero-description {
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    letter-spacing: 0.01em;
}

/* Application Links */
.app-links {
    position: fixed;
    bottom: 3rem;
    right: 3rem;
    display: flex;
    gap: 1.25rem;
    z-index: 10;
    animation: fadeInUp 1s ease 0.6s both;
}

.app-link {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    min-width: 140px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.app-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.15),
        transparent
    );
    transition: left 0.6s ease;
}

.app-link:hover::before {
    left: 100%;
}

.app-link:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.link-label {
    font-size: 0.6rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.link-title {
    font-size: 1.15rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}

.link-arrow {
    position: absolute;
    bottom: 1.25rem;
    right: 1.25rem;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.4);
    transition: all 0.3s ease;
}

.app-link:hover .link-arrow {
    transform: translateX(5px);
    color: rgba(255, 255, 255, 0.9);
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}

/* Touch devices optimization */
@media (hover: none) and (pointer: coarse) {
    .glass-button:active {
        background: rgba(255, 255, 255, 0.2);
        transform: translateY(-3px) scale(1.03);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        left: 2rem;
        max-width: 500px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .app-links {
        bottom: 2rem;
        right: 2rem;
        gap: 1rem;
    }
    
    .app-link {
        min-width: 130px;
        padding: 1.15rem 1.35rem;
    }
}

@media (max-width: 768px) {
    .logo {
        top: 1.5rem;
        left: 1.5rem;
    }

    .hero-content {
        left: 1.5rem;
        right: 1.5rem;
        top: 40%;
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }

    .app-links {
        bottom: 1.5rem;
        left: 1.5rem;
        right: 1.5rem;
        flex-direction: column;
    }

    .app-link {
        width: 100%;
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .logo {
        top: 1rem;
        left: 1rem;
    }
    
    .logo-icon {
        width: 40px;
        height: 40px;
    }
    
    .logo-text {
        font-size: 0.9rem;
    }
    
    .hero-content {
        left: 1rem;
        right: 1rem;
    }

    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-badge {
        font-size: 0.65rem;
        padding: 0.4rem 0.8rem;
    }
}

/* Selection Color */
::selection {
    background: rgba(16, 185, 129, 0.3);
    color: white;
}