/* Custom CSS Variables - Default Theme: Deep Blue Cyberpunk */
:root {
    --bg-color: #0b1120;
    /* This will be the overlay color */
    --card-bg: rgba(18, 30, 50, 0.8);
    --border-color: #00ffff;
    /* Default border set to #00FFFF */
    --primary-text-color: #e0f2f7;
    --secondary-text-color: #a0aec0;
    --accent-color-light: #00ffff;
    /* Changed to #00ffff as requested for default */
    --accent-color-dark: #00a8a8;
    --button-primary-bg: #00e6e6;
    --button-primary-text: #0b1120;
    --button-secondary-bg: transparent;
    --button-secondary-border: #808080;
    --button-secondary-text: #e0f2f7;
    --shadow-color: rgba(0, 230, 230, 0.4);
    --inner-shadow-color: rgba(0, 230, 230, 0.1);
    /* New button specific variables */
    --button-action-bg: #0f172a;
    --button-action-border-color: #00ffff;
    /* Changed to #00ffff as requested for default */
}

/* --- Theme Variations (Only Provided Colors) --- */

/* Theme 1: Default (00FFFF) - Cyan / Aqua */
body.theme-default {
    --bg-color: #0b1120;
    --card-bg: rgba(18, 30, 50, 0.8);
    --border-color: #00ffff;
    --primary-text-color: #e0f2f7;
    --secondary-text-color: #a0aec0;
    --accent-color-light: #00ffff;
    --accent-color-dark: #00a8a8;
    --button-primary-bg: #00e6e6;
    --button-primary-text: #0b1120;
    --button-secondary-border: #808080;
    --button-secondary-text: #e0f2f7;
    --shadow-color: rgba(0, 230, 230, 0.4);
    --inner-shadow-color: rgba(0, 230, 230, 0.1);
    --button-action-bg: #0f172a;
    --button-action-border-color: #00ffff;
}

/* Theme 1 (Custom): Crimson */
body.theme-custom-1 {
    --primary-text-color: crimson;
    --secondary-text-color: #f0e68c;
    /* Khaki for better readability on dark */
    --accent-color-light: crimson;
    --accent-color-dark: #b22222;
    /* Firebrick */
    --border-color: crimson;
    --button-action-border-color: crimson;
    --shadow-color: rgba(220, 20, 60, 0.4);
    --inner-shadow-color: rgba(220, 20, 60, 0.1);
}

/* Theme 2 (Custom): 9400D3 - Dark Violet */
body.theme-custom-2 {
    --primary-text-color: #9400D3;
    /* Dark Violet */
    --secondary-text-color: #e6b2ff;
    /* Light purple for readability */
    --accent-color-light: #9400D3;
    --accent-color-dark: #7A00B0;
    /* Darker Violet */
    --border-color: #9400D3;
    --button-action-border-color: #9400D3;
    --shadow-color: rgba(148, 0, 211, 0.4);
    --inner-shadow-color: rgba(148, 0, 211, 0.1);
}

/* Theme 3 (Custom): FF00FF - Magenta */
body.theme-custom-3 {
    --primary-text-color: #FF00FF;
    /* Magenta */
    --secondary-text-color: #ffbfff;
    /* Light Magenta for readability */
    --accent-color-light: #FF00FF;
    --accent-color-dark: #CC00CC;
    /* Darker Magenta */
    --border-color: #FF00FF;
    --button-action-border-color: #FF00FF;
    --shadow-color: rgba(255, 0, 255, 0.4);
    --inner-shadow-color: rgba(255, 0, 255, 0.1);
}

/* Theme 4 (Custom): 00FA9A - Medium Spring Green */
body.theme-custom-4 {
    --primary-text-color: #00FA9A;
    /* Medium Spring Green */
    --secondary-text-color: #99ffe0;
    /* Lighter green for readability */
    --accent-color-light: #00FA9A;
    --accent-color-dark: #00C87B;
    /* Darker Spring Green */
    --border-color: #00FA9A;
    --button-action-border-color: #00FA9A;
    --shadow-color: rgba(0, 250, 154, 0.4);
    --inner-shadow-color: rgba(0, 250, 154, 0.1);
}

/* Theme 5 (Custom): 00BFFF - Deep Sky Blue */
body.theme-custom-5 {
    --primary-text-color: #00BFFF;
    /* Deep Sky Blue */
    --secondary-text-color: #b3e0ff;
    /* Light blue for readability */
    --accent-color-light: #00BFFF;
    --accent-color-dark: #009FE5;
    /* Darker Sky Blue */
    --border-color: #00BFFF;
    --button-action-border-color: #00BFFF;
    --shadow-color: rgba(0, 191, 255, 0.4);
    --inner-shadow-color: rgba(0, 191, 255, 0.1);
}

/* Theme 6 (Custom): Gold */
body.theme-custom-6 {
    --primary-text-color: #FFD700;
    /* Gold */
    --secondary-text-color: #ffe87a;
    /* Light Gold */
    --accent-color-light: #FFD700;
    --accent-color-dark: #ccac00;
    /* Dark Gold */
    --border-color: #FFD700;
    --button-action-border-color: #FFD700;
    --shadow-color: rgba(255, 215, 0, 0.4);
    --inner-shadow-color: rgba(255, 215, 0, 0.1);
}


/* Universal Box-Sizing for better layout control */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* --- General Body Styles --- */
body {
    font-family: 'Signika', sans-serif;
    color: var(--primary-text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
    width: 100%;
    transition: background-color 0.5s ease, color 0.5s ease;
    position: relative;
    /* Needed for pseudo-element positioning */
    z-index: 1;
    /* Ensure content is above pseudo-element */
}

/* Background image with brightness filter */
body::before {
    content: '';
    position: fixed;
    /* Fixed so it stays in place on scroll */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../bg.jpg');
    /* Adjust path as needed */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    filter: brightness(0.5);
    /* Darken the background */
    z-index: -1;
    /* Place behind body content */
    transition: background-color 0.5s ease;
    /* Transition for theme changes if you ever change bg color directly on body */
    /* Add an overlay color that changes with theme */
    background-color: var(--bg-color);
    /* This will add an overlay color that changes */
    background-blend-mode: multiply;
    /* Blends the image with the background-color */
}


/* --- Main Content Area --- */
.main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    width: 100%;
    max-width: 1200px;
    padding: 0 1rem;
    margin-top: 30px;
    position: relative;
    /* Ensure content is above the pseudo-background */
    z-index: 2;
    /* Ensure content is on top */
}

/* --- Main Title Styling (My Tools) --- */
.main-title {
    font-family: 'Signika', sans-serif;
    color: var(--accent-color-light);
    font-size: 3.5rem;
    text-shadow: 0 0 15px var(--accent-color-light), 0 0 25px var(--shadow-color);
    /* Use variable */
    margin-bottom: 1.5rem;
    /* Reduced margin */
    position: relative;
    padding-bottom: 0.5rem;
    text-align: center;
    transition: color 0.5s ease, text-shadow 0.5s ease;
}

.main-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-color-light);
    border-radius: 2px;
    box-shadow: 0 0 10px var(--accent-color-light);
    transition: background-color 0.5s ease, box-shadow 0.5s ease;
}

@media (max-width: 768px) {
    .main-title {
        font-size: 2.5rem;
    }
}

/* --- Projects Grid --- */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    /* Default to 1 column for very small screens */
    gap: 2rem;
    /* Reduced gap between cards */
    width: 100%;
    justify-items: center;
    padding-bottom: 40px;
}

@media (min-width: 600px) {
    
    /* Two columns on screens 600px wide and up */
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --- Project Card Styling --- */
.project-card {
    background: var(--card-bg);
    /* Changed to use card-bg variable for transparency */
    backdrop-filter: blur(20px);
    /* This enables the blur effect */
    border: 1px solid var(--border-color);
    border-radius: 1.2rem;
    box-shadow: 0 10px 30px #777, inset 0 0 15px var(--inner-shadow-color);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    padding: 1rem;
    /* Reduced padding inside card */
    width: 95%;
    /* Increased width */
    max-width: 550px;
    /* Increased max width */
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px var(--shadow-color), inset 0 0 25px var(--inner-shadow-color);
    /* Use variables */
    border-color: var(--accent-color-light);
}

.card-image-wrapper {
    width: calc(100% + 2rem);
    /* Adjusted to new padding */
    margin-left: -1rem;
    /* Adjusted to new padding */
    margin-right: -1rem;
    margin-top: -1rem;
    /* Adjusted to new padding */
    height: 250px;
    /* Slightly increased image height */
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top-left-radius: 1rem;
    border-top-right-radius: 1rem;
    overflow: hidden;
    margin-bottom: 1rem;
    /* Reduced margin below image */
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-card h3 {
    font-family: 'Signika', sans-serif;
    color: var(--accent-color-light);
    font-size: 1.6rem;
    /* Slightly reduced font size for better fit */
    margin-bottom: 0.5rem;
    /* Reduced margin */
    font-weight: 700;
    line-height: 1.3;
    transition: color 0.5s ease;
    display: flex;
    /* Make h3 a flex container */
    align-items: center;
    /* Vertically align items */
    gap: 0.5rem;
    /* Space between icon and text */
}

.project-card p {
    color: #fff; /* Fixed to white as requested */
    font-size: 1rem;
    /* Slightly reduced font size */
    line-height: 1.5;
    /* Adjusted line height */
    margin-bottom: 1rem;
    /* Reduced margin */
    flex-grow: 1;
    transition: color 0.5s ease;
}

/* Button Container Layout */
.button-container {
    display: flex;
    justify-content: space-between;
    gap: 0.8rem;
    /* Reduced gap between buttons */
    width: 100%;
    margin-top: auto;
    flex-wrap: wrap;
}


.action-btn {
    position: relative;
    display: inline-block;
    padding: 14px 30px;
    background: var(--button-action-bg);
    /* Now uses variable */
    color: var(--primary-text-color);
    /* Changed to primary-text-color for theme consistency */
    font-weight: bold;
    border-radius: 10px;
    overflow: hidden;
    z-index: 1;
    text-decoration: none;
    transition: all 0.3s ease;
    font-family: 'Signika', sans-serif;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}

.action-btn i {
    margin-right: 10px;
}

/* 🔄 Rotating Outer Border */
.action-btn::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg,
            var(--button-action-border-color)
            /* Now uses variable */
        );
    animation: rotate-border 4s linear infinite;
    z-index: -2;
}

/* ⬛ Inner Background Layer (above border) */
.action-btn::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    background-color: var(--button-action-bg);
    /* Now uses variable */
    border-radius: 10px;
    z-index: -1;
}

/* 🔁 Keyframes */
@keyframes rotate-border {
    0% {
        transform: rotate(0deg);
    }
    
    100% {
        transform: rotate(360deg);
    }
}

.action-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px var(--shadow-color);
    /* Using existing shadow variable */
}

/* --- General Utility/Feature Styles --- */
/* Toast Message */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--button-primary-bg);
    color: var(--button-primary-text);
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 0 15px var(--shadow-color);
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.4s ease, background-color 0.5s ease, color 0.5s ease, box-shadow 0.5s ease;
    font-weight: bold;
    z-index: 1000;
    min-width: 200px;
    text-align: center;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    /* Adjusted position as back-to-top is removed */
    background-color: var(--accent-color-light);
    color: var(--button-primary-text);
    padding: 1rem;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease-in-out, background-color 0.5s ease, color 0.5s ease, box-shadow 0.5s ease;
    cursor: pointer;
    border: none;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
}

.theme-toggle:hover {
    background-color: var(--accent-color-dark);
    box-shadow: 0 5px 20px var(--shadow-color);
    transform: scale(1.1);
}

/* Keyboard Navigation Focus Highlight */
.user-is-tabbing *:focus {
    outline: 2px solid var(--accent-color-light);
    outline-offset: 3px;
    transition: outline 0.2s ease-in-out;
}

/* Cursor Trail */
.cursor-dot {
    position: fixed;
    width: 8px;
    height: 8px;
    background: var(--accent-color-light);
    /* Cursor dot now uses accent color */
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    opacity: 0;
    animation: fadeOutTrail 0.5s forwards;
    z-index: 9999;
    transition: background-color 0.5s ease;
    /* Smooth transition for dot color */
}

@keyframes fadeOutTrail {
    from {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1);
    }
    
    to {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.5);
    }
}

/* Reading Time Style (if applicable) */
.reading-time {
    font-size: 0.85rem;
    color: var(--secondary-text-color);
    margin-top: 0.5rem;
    display: block;
    font-weight: 300;
}