/* Common Base Styles */

:root {
    --clr-mirage: #171a25;
    --clr-navy-blue: #1e3a5f;
    --clr-sky-blue: #4a9eff;
    --clr-crystal-blue: #6bb6ff;
    --clr-white: #ffffff;
    --clr-accent-green: #10b981;
    --clr-background-page: #171a25;
    --clr-text-main: #ffffff;
    --clr-text-light: rgba(255, 255, 255, 0.75);
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-xxl: 4rem;
    --space-xxxl: 6rem;
    --br-sm: 8px;
    --br-md: 12px;
    --br-lg: 20px;
    --transition-normal: 0.4s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--clr-text-main);
    background: var(--clr-background-page);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.container {
    width: min(1200px, 92vw);
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2.4rem;
    border-radius: var(--br-md);
    border: 2px solid transparent;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary {
    background: linear-gradient(135deg, #2d5a8a 0%, #1e3a5f 50%, #171a25 100%);
    color: var(--clr-white);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: var(--clr-white);
    color: var(--clr-navy-blue);
    border-color: var(--clr-navy-blue);
}

.btn-outline {
    background: transparent;
    color: var(--clr-white);
    border-color: var(--clr-white);
}

.btn-lg { padding: 1.1rem 2.8rem; }
.btn-xl { padding: 1.3rem 3.2rem; font-size: 1.1rem; }

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

/* Page Loader */
.page-loader {
    position: fixed;
    inset: 0;
    display: grid;
    place-items: center;
    background: #0f1118;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}
.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}
.loader-content {
    text-align: center;
    color: var(--clr-white);
}
.loader-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255,255,255,0.2);
    border-top-color: var(--clr-sky-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-sm);
}
@keyframes spin { to { transform: rotate(360deg); } }