/* assets/css/glass-theme.css */

/* --- Core Theme & Animated Background --- */
:root {
    --primary-font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --title-font: 'Lexend Deca', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --text-color: #f0f0f0;
    --text-muted: #a0a0a0;
    --accent-color: #8a2be2; /* Dark Orchid Purple */
    --accent-hover: #9932cc; /* Medium Orchid */
    --background-start: #000000;
    --background-mid: #050510;
    --background-end: #100510;
    --glass-bg: rgba(10, 5, 20, 0.45);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.5);
    --glass-blur: 10px;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&family=Lexend+Deca&display=swap');

/* --- Animations --- */
@keyframes blue-purple-glow {
    0% {
        box-shadow: 0 0 20px 3px rgba(0, 100, 255, 0.4), 0 0 30px 8px rgba(75, 0, 130, 0.3);
    }
    50% {
        box-shadow: 0 0 25px 5px rgba(75, 0, 130, 0.4), 0 0 35px 10px rgba(0, 100, 255, 0.3);
    }
    100% {
        box-shadow: 0 0 20px 3px rgba(0, 100, 255, 0.4), 0 0 30px 8px rgba(75, 0, 130, 0.3);
    }
}

@keyframes float-effect {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
    100% { transform: translateY(0px); }
}

body {
    font-family: var(--primary-font);
    background: linear-gradient(-45deg, var(--background-start), var(--background-mid), var(--background-end));
    background-size: 400% 400%;
    animation: gradientBG 20s ease infinite;
    color: var(--text-color);
    margin: 0;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* --- Main App Container --- */
.app-container {
    width: 100%;
    max-width: 1200px;
    height: 90vh;
    display: flex;
    background: rgba(0,0,0,0.2);
    border-radius: 30px; /* More rounded */
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: 0 15px 35px var(--glass-shadow);
}

/* --- Sidebar Navigation --- */
.sidebar {
    width: 240px;
    background: rgba(0,0,0,0.15);
    padding: 2rem 0;
    flex-shrink: 0;
    border-right: 1px solid var(--glass-border);
}

.sidebar .logo {
    text-align: center;
    font-family: var(--title-font);
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 3rem;
    padding: 0 1rem;
    text-shadow: 0 0 12px var(--accent-hover);
}

.sidebar .nav-menu { list-style: none; padding: 0; margin: 0; }
.sidebar .nav-menu .nav-item a {
    display: block; padding: 1rem 2rem; color: var(--text-muted);
    text-decoration: none; font-weight: 500; font-size: 1rem;
    position: relative; transition: color 0.3s ease, background 0.3s ease;
}
.sidebar .nav-menu .nav-item a:hover { color: #fff; background: rgba(138, 43, 226, 0.15); }
.sidebar .nav-menu .nav-item.active a { color: #fff; font-weight: 700; }
.sidebar .nav-menu .nav-item.active a::before {
    content: ''; position: absolute; left: 0; top: 0; height: 100%;
    width: 4px; background: var(--accent-color); border-radius: 0 4px 4px 0;
    box-shadow: 0 0 8px var(--accent-color);
}
.sidebar .logout-link { position: absolute; bottom: 2rem; width: 240px; text-align: center; }
.sidebar .logout-link a { color: var(--text-muted); text-decoration: none; font-weight: 500; transition: color 0.3s ease; }
.sidebar .logout-link a:hover { color: #fff; }

/* --- Main Content Area --- */
.main-content { flex-grow: 1; padding: 3rem; overflow-y: auto; }
.main-content h1 {
    font-family: var(--title-font); font-size: 2.5rem; color: #fff;
    margin-bottom: 2rem; text-shadow: 0 0 10px rgba(255,255,255,0.2);
}

/* --- Glass Panel Style (with Blue/Purple Glow) --- */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 25px; /* More rounded */
    padding: 2.5rem;
    animation: blue-purple-glow 10s linear infinite;
}

/* --- Form Elements --- */
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; color: var(--text-muted); font-weight: 500; }
.form-control {
    width: 100%; padding: 1rem 1.2rem; background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border); border-radius: 15px; /* More rounded */
    color: var(--text-color);
    font-size: 1rem; transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-control:focus {
    outline: none; border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.3);
}
.form-control:disabled { background: rgba(0, 0, 0, 0.5); cursor: not-allowed; }

/* --- Buttons (with Float and Glow) --- */
.btn {
    padding: 1rem 2rem; border: 1px solid transparent; border-radius: 50px; /* Pill shape */
    font-size: 1rem; font-weight: 700; cursor: pointer;
    transition: all 0.4s ease; text-transform: uppercase; letter-spacing: 1px;
    position: relative; overflow: hidden;
    animation: float-effect 6s ease-in-out infinite;
}
.btn-primary {
    background-color: var(--accent-color); color: #fff;
    border-color: var(--accent-hover);
    animation: blue-purple-glow 8s linear infinite alternate, float-effect 6s ease-in-out infinite;
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px) scale(1.05); /* Keep hover effect, float is separate */
    box-shadow: 0 8px 25px rgba(153, 50, 204, 0.6);
}

/* --- Notes Grid --- */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem; margin-top: 2rem;
}

.note-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 25px; /* More rounded */
    padding: 1.5rem;
    transition: transform 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
    position: relative; overflow: hidden;
    animation: blue-purple-glow 12s linear infinite;
}
.note-card:hover {
    transform: translateY(-10px) scale(1.03);
    background: rgba(20, 10, 30, 0.7);
    animation-play-state: paused; /* Pause the glow to show a specific hover shadow */
    box-shadow: 0 10px 40px rgba(138, 43, 226, 0.5);
}

.note-card-content { color: var(--text-color); margin-bottom: 1rem; max-height: 150px; overflow: hidden; text-overflow: ellipsis; }
.note-card-content a { color: var(--accent-hover); text-decoration: none; font-weight: 600; }
.note-card-content a:hover { text-decoration: underline; }
.note-card-footer { display: flex; justify-content: space-between; align-items: center; }
.note-card-date { font-size: 0.8rem; color: var(--text-muted); }
.delete-note-btn {
    background: none; border: none; color: var(--text-muted);
    font-size: 1.2rem; cursor: pointer; transition: color 0.3s ease; padding: 5px;
}
.delete-note-btn:hover { color: #ff4757; }

/* Add Note Button */
.add-note-card {
    display: flex; align-items: center; justify-content: center; flex-direction: column;
    min-height: 200px; cursor: pointer; border-style: dashed; border-width: 2px;
    border-radius: 25px; /* More rounded */
    background: rgba(255, 255, 255, 0.02);
    animation: blue-purple-glow 15s linear infinite reverse;
}
.add-note-card:hover {
    background: rgba(138, 43, 226, 0.1);
    border-color: var(--accent-hover);
}
.add-note-icon { font-size: 3rem; color: var(--text-muted); transition: color 0.3s ease; }
.add-note-card:hover .add-note-icon { color: var(--accent-hover); }
.add-note-text { margin-top: 1rem; font-weight: 500; color: var(--text-muted); transition: color 0.3s ease; }
.add-note-card:hover .add-note-text { color: var(--accent-hover); }

/* Note Editor Modal */
#note-editor-modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7); display: none; /* Hidden by default */
    align-items: center; justify-content: center; z-index: 1000;
    backdrop-filter: blur(10px);
}
#note-editor-modal.show { display: flex; }
.note-editor-panel {
    width: 90%; max-width: 700px; height: 70vh;
    display: flex; flex-direction: column;
    animation: blue-purple-glow 9s linear infinite;
    border-radius: 25px; /* More rounded */
}
#note-editor-textarea {
    flex-grow: 1; background: rgba(0,0,0,0.5);
    border: 1px solid var(--glass-border); color: var(--text-color);
    padding: 1.5rem; font-size: 1.1rem; line-height: 1.6;
    resize: none; border-radius: 25px 25px 0 0;
}
#note-editor-textarea:focus { outline: none; border-color: var(--accent-color); }
.note-editor-footer {
    display: flex; justify-content: flex-end; padding: 1rem;
    background: var(--glass-bg); border-top: 1px solid var(--glass-border);
    border-radius: 0 0 25px 25px;
}