/* --------------------------------------------------------------------------
   DESIGN SYSTEM & VARIABLES
-------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-bg: #ffffff;
    --color-card-bg: #ffffff;
    --color-text-primary: hsl(215, 28%, 17%);
    --color-text-secondary: hsl(215, 16%, 47%);
    --color-text-muted: hsl(215, 12%, 60%);
    
    /* Warning Accents */
    --color-warning-primary: hsl(354, 84%, 57%);
    --color-warning-hover: hsl(354, 84%, 50%);
    --color-warning-bg: hsl(354, 100%, 97%);
    --color-warning-border: hsl(354, 90%, 92%);
    --color-warning-pulse: hsla(354, 84%, 57%, 0.15);

    /* Neutrals */
    --color-border: hsl(214, 32%, 91%);
    --color-btn-inactive-bg: hsl(210, 20%, 98%);
    --color-btn-inactive-text: hsl(215, 16%, 37%);
    --color-btn-active-bg: hsl(215, 28%, 17%);
    --color-btn-active-text: #ffffff;

    /* Fonts */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Outfit', var(--font-primary);

    /* Layout & Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    
    /* Animation Speeds */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   BASE STYLES
-------------------------------------------------------------------------- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow-x: hidden;
}

/* Background Subtle Grid Effect to Make it Premium */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(at 0% 0%, hsla(354, 84%, 57%, 0.03) 0px, transparent 50%),
        radial-gradient(at 100% 0%, hsla(215, 28%, 17%, 0.02) 0px, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   HEADER & LANGUAGE SELECTOR
-------------------------------------------------------------------------- */
.header {
    width: 100%;
    max-width: 1200px;
    padding: 24px 32px;
    display: flex;
    justify-content: flex-end;
}

.lang-selector {
    display: flex;
    gap: 6px;
    background-color: var(--color-btn-inactive-bg);
    padding: 4px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.lang-btn {
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-btn-inactive-text);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    color: var(--color-text-primary);
}

.lang-btn.active {
    background-color: var(--color-btn-active-bg);
    color: var(--color-btn-active-text);
    box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------------------
   CONTAINER & SLEEK CARD
-------------------------------------------------------------------------- */
.container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    width: 100%;
    max-width: 600px;
}

.card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    width: 100%;
}

/* --------------------------------------------------------------------------
   WARNING ICON & PULSE ANIMATION
-------------------------------------------------------------------------- */
.icon-container {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
    color: var(--color-warning-primary);
    border-radius: 50%;
    margin-bottom: 28px;
}

.warning-icon {
    width: 36px;
    height: 36px;
}

.icon-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--color-warning-pulse);
    animation: pulse 2.5s infinite ease-in-out;
    z-index: -1;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        opacity: 0.8;
    }
    50% {
        transform: scale(1.3);
        opacity: 0;
    }
    100% {
        transform: scale(0.95);
        opacity: 0;
    }
}

/* --------------------------------------------------------------------------
   TYPOGRAPHY & CONTENT
-------------------------------------------------------------------------- */
.badge {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-warning-primary);
    background-color: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 16px;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.title {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    margin-bottom: 16px;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.description {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    max-width: 440px;
    margin-bottom: 36px;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

/* --------------------------------------------------------------------------
   BUTTONS & ACTIONS
-------------------------------------------------------------------------- */
.action-container {
    width: 100%;
    display: flex;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-warning-primary);
    color: #ffffff;
    box-shadow: 0 4px 14px hsla(354, 84%, 57%, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-warning-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px hsla(354, 84%, 57%, 0.4);
}

.btn-primary:active {
    transform: translateY(1px);
}

/* --------------------------------------------------------------------------
   FOOTER
-------------------------------------------------------------------------- */
.footer {
    width: 100%;
    padding: 40px 32px;
    display: flex;
    justify-content: center;
    border-top: 1px solid var(--color-border);
    background-color: #ffffff;
}

.footer-link {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: color var(--transition-fast);
    position: relative;
    padding-bottom: 2px;
}

.footer-link::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 1px;
    bottom: 0;
    left: 0;
    background-color: var(--color-text-primary);
    transform-origin: bottom right;
    transition: transform var(--transition-fast);
}

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

.footer-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* --------------------------------------------------------------------------
   RESPONSIVE DESIGN
-------------------------------------------------------------------------- */
@media (max-width: 600px) {
    .header {
        padding: 16px 20px;
        justify-content: center;
    }
    
    .container {
        padding: 24px 16px;
    }

    .card {
        padding: 40px 24px;
        border-radius: var(--radius-md);
    }

    .title {
        font-size: 26px;
    }

    .description {
        font-size: 15px;
    }

    .btn {
        width: 100%;
    }
}