/* ===================================================================
   1. GLOBAL VARIABLES & RESET
   ================================================================= */
:root {
    --bg-deep-dark: #0a192f;
    --bg-medium-dark: #172a46;
    --bg-light-dark: #2c3e50;
    --text-bright: #ccd6f6;
    --text-normal: #bdc3c7;
    --text-muted: #8892b0;
    --accent-primary: #64ffda;
    --accent-primary-darker: #52d3b4;
    --accent-primary-text: #0a192f;
    --border-color: #304a6e;
    --card-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-deep-dark);
    color: var(--text-normal);
    line-height: 1.6;
    font-size: 16px;
    background-image: linear-gradient(rgba(10, 25, 47, 0.9), rgba(10, 25, 47, 0.9)),
                      url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path fill="%23172a46" fill-opacity="0.3" d="M0 0 H40 V40 H0 Z M20 0 V40 M0 20 H40"></path></svg>');
    background-size: 40px 40px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

/* ===================================================================
   2. HEADER & NAVIGATION (Responsive)
   ================================================================= */
header {
    background-color: rgba(10, 25, 47, 0.95);
    padding: 1rem 5%;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-primary);
    letter-spacing: 1px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: var(--text-normal);
    font-weight: 500;
    padding: 0.5rem 0;
    font-size: 0.95rem;
}

nav a:hover, nav a.active {
    color: var(--accent-primary);
    border-bottom: 2px solid var(--accent-primary);
}

/* ===================================================================
   3. MAIN CONTENT LAYOUT
   ================================================================= */
main {
    flex: 1; /* Pushes footer down */
    width: 100%;
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 5%;
}

.profile-container {
    display: grid;
    /* Desktop: 1/3 width for Profile, 2/3 for History */
    grid-template-columns: 1fr 2fr; 
    gap: 2rem;
    align-items: start;
}

/* ===================================================================
   4. PROFILE CARD
   ================================================================= */
.profile-card {
    background-color: var(--bg-medium-dark);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1.5rem;
    border: 3px solid var(--accent-primary);
    box-shadow: 0 0 20px rgba(100, 255, 218, 0.2);
    background-color: var(--bg-light-dark);
}

.profile-card h2 {
    color: var(--text-bright);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.profile-card p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 0.5rem;
    width: 100%;
    word-break: break-word; /* Prevents long emails from breaking layout */
}

.profile-card strong {
    color: var(--accent-primary);
    font-weight: 500;
}

/* ===================================================================
   5. SEARCH HISTORY
   ================================================================= */
.search-history {
    background-color: var(--bg-medium-dark);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    min-height: 400px; /* Ensures visual balance */
}

.search-history h3 {
    color: var(--text-bright);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-history ul {
    list-style: none;
    padding: 0;
}

.search-history li {
    background-color: var(--bg-light-dark);
    padding: 1rem 1.25rem;
    border-radius: 6px;
    margin-bottom: 0.75rem;
    color: var(--text-normal);
    border-left: 3px solid var(--accent-primary);
    transition: transform 0.2s, background-color 0.2s;
    font-size: 0.95rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-history li:hover {
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateX(5px);
}

/* ===================================================================
   6. RESPONSIVE MEDIA QUERIES
   ================================================================= */

/* Tablet (Portrait) & Mobile */
@media (max-width: 900px) {
    header {
        padding: 1rem;
    }

    nav {
        flex-direction: column;
        gap: 1rem;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
        width: 100%;
    }

    /* Switch to single column stack */
    .profile-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .profile-card, .search-history {
        padding: 2rem;
        min-height: auto;
    }
}

/* Mobile Phones */
@media (max-width: 600px) {
    main {
        padding: 0 1rem;
        margin-top: 1.5rem;
    }

    .avatar {
        width: 100px;
        height: 100px;
    }

    .profile-card h2 {
        font-size: 1.25rem;
    }

    .search-history h3 {
        font-size: 1.1rem;
    }

    .search-history li {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
}

/* ===================================================================
   7. FOOTER
   ================================================================= */
footer {
    text-align: center;
    padding: 2rem 5%;
    margin-top: 3rem;
    background-color: var(--bg-medium-dark);
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}