/* ------------------------------------------- */
/* 1. COLOR PALETTE DEFINITION */
/* ------------------------------------------- */

/* Define CSS Variables for easy color management */
:root {
    --background-dark: #5c063a;   /* Darkest Berry/Maroon - Main Body Background (dark) */
    --content-bg-light: #80134f;  /* Slightly lighter for section separation (medium-dark) */
    --primary-color: #830251;     /* Core Brand Color/CTAs (medium) */
    --primary-light: #f0ae2d;     /* Brightest Accent/Highlight (light) */
    --secondary-light: #c84877;     /* Brightest Accent/Highlight (light) */
    --text-light: #f3f4f6;        /* White/Light text for readability */
    --neutral-card: #F3E8F4;      /* Very Pale Lilac/White card background (neutral/light) */
    --text-dark: #5c063a;         /* Dark text for light cards */
}
/* ------------------------------------------- */
/* 2. BASE STYLES AND TAILWIND OVERRIDES */
/* ------------------------------------------- */

/* Apply base colors and font to the entire body */
body {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-light);
    background-color: var(--background-dark);
    scroll-behavior: smooth;
}

/* Custom Tailwind utility classes for cleaner HTML markup */
.bg-dark { background-color: var(--background-dark); }
.bg-content-light { background-color: var(--content-bg-light); }
.bg-primary { background-color: var(--primary-color); }
.bg-primary-light { background-color: var(--primary-light); }
.bg-neutral-card { background-color: var(--neutral-card); }
.text-light { color: var(--text-light); }
.text-primary-light { color: var(--primary-light); }
.text-dark-text { color: var(--text-dark); }
.border-primary { border-color: var(--primary-color); }
.border-primary-light { border-color: var(--primary-light); }
.border-accent-light { border-color: var(--primary-light); } /* Alias for the brightest accent */
.hero-section { background-color: var(--primary-color); }
.texture-bg { background-image: url(az-signature-picture-woman.png); background-size: 20px; }

/*AZ logo animation*/
@keyframes slideX {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(calc(100vw - 8rem));
  }
  100% {
    transform: translateX(-100%);
  }
}

.animate-slide-x {
  animation: slideX 20s linear infinite;
}


/* Page Content Visibility (SPA navigation handling) */
/* Initially set to fade out, making the transition smoother */
.page-content {
    display: none; 
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}
.page-content.active {
    display: block; 
    opacity: 1;
}

/* ------------------------------------------- */
/* 3. ANIMATIONS AND INTERACTIVE EFFECTS */
/* ------------------------------------------- */

/* Keyframes for the content load animation */
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}
.animate-intro {
    animation-name: fadeInScale;
    animation-duration: 0.8s;
    animation-fill-mode: both;
}

/* Interactive Card Effect on hover for content-card elements */
.content-card {
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.content-card:hover {
    transform: translateY(-4px);
    /* Shadow uses the primary light accent color for branding consistency */
    box-shadow: 0 15px 30px -5px rgba(200, 72, 119, 0.4), 0 2px 4px -1px rgba(200, 72, 119, 0.1);
}

/* Header Shadow on Scroll */
.header-shadow-scroll {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
    transition: box-shadow 0.3s ease;
}

/* ================================================= */
/* !!! NEW: SMART HEADER STYLES !!! */
/* ================================================= */

/* Ensure the header has a smooth transition for the smart header effect */
#main-header {
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease;
}

/* New class to hide the header by moving it up by its full height (100% of itself) */
.header-hidden {
    transform: translateY(-100%);
}

/* ------------------------------------------- */
/* 4. LAYOUT SPECIFIC STYLES (Timeline) */
/* ------------------------------------------- */

.timeline-container {
    position: relative;
    padding: 0 0 0 20px; /* Space for the line on mobile */
}

/* Vertical line for the timeline on desktop */
.timeline-line {
    position: absolute;
    left: 50%;
    width: 6px;
    height: 100%;
    margin-left: -2px;
    top: 0;
    background-color: var(--primary-light); /* Color set via Tailwind class */
}

.timeline-event {
    position: relative;
    padding: 20px 0;
}

/* Circle markers for events (desktop view) */
.timeline-event:before {
    content: '';
    position: absolute;
    background-color: var(--primary-light);
    border: 3px solid var(--background-dark);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    z-index: 10;
    top: 35px;
}

/* Left side events marker position (desktop) */
.left-event:before {
    left: calc(50% - 10px);
    transform: translateX(-10px);
}

/* Right side events marker position (desktop) */
.right-event:before {
    left: calc(50% - 10px);
    transform: translateX(-10px);
}

/* Reset marker position for mobile view (stacked layout) */
@media (max-width: 768px) {
    .timeline-container {
        padding: 0 0 0 20px;
    }
    .timeline-event:before {
        left: 0;
        transform: translateX(0);
    }
    .timeline-line {
        left: 10px;
    }
    .left-event:before, .right-event:before {
        left: 10px;
        transform: translate(-50%, 0);
    }
    
    /* Ensure all text is left-aligned and full width on mobile */
    .left-event > div, .right-event > div {
    /* Fixed: Removed width: 100% and text-align: left !important; to stop cramping on mobile. */
    padding: 0 0 0 20px; 
}


/* ------------------------------------------- */
/* 5. RESPONSIVENESS */
/* ------------------------------------------- */

/* Specific styles for the 4-column challenge grid on small screens */
@media (max-width: 768px) {
    .challenge-grid-4-col {
        grid-template-columns: 1fr; /* Stacked on mobile */
    }

}