/* ===========================================
   MEMPHIS DESIGN SYSTEM - LearnWithHasan
   Toned-down, professional Memphis styling
   =========================================== */

/* ==================== ROOT VARIABLES ==================== */
:root {
    /* Memphis Muted Color Palette */
    --memphis-pink: #e8879f;
    --memphis-pink-light: #f5b5c4;
    --memphis-teal: #4db8a8;
    --memphis-teal-light: #7fcfc3;
    --memphis-yellow: #f5d76e;
    --memphis-yellow-light: #f9e5a0;
    --memphis-coral: #e8a07a;
    --memphis-purple: #9b7cc4;

    /* Base Colors */
    --memphis-black: #1a1a2e;
    --memphis-white: #fffef7;
    --memphis-cream: #faf8f5;
    --memphis-gray: #6b6b7b;

    /* Shadow variants */
    --shadow-offset: 4px;
    --shadow-black: 4px 4px 0 var(--memphis-black);
    --shadow-pink: 4px 4px 0 var(--memphis-pink);
    --shadow-teal: 4px 4px 0 var(--memphis-teal);
    --shadow-purple: 4px 4px 0 var(--memphis-purple);
    --shadow-yellow: 4px 4px 0 var(--memphis-yellow);

    /* Border settings */
    --border-width: 3px;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-pill: 50px;
}

/* ==================== POLKA DOT BACKGROUND ==================== */
.memphis-dots {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
        radial-gradient(circle, var(--memphis-pink) 1.5px, transparent 1.5px),
        radial-gradient(circle, var(--memphis-teal) 1px, transparent 1px),
        radial-gradient(circle, var(--memphis-yellow) 1px, transparent 1px);
    background-size: 80px 80px, 60px 60px, 100px 100px;
    background-position: 0 0, 30px 30px, 50px 10px;
    opacity: 0.06;
}

/* ==================== BUTTONS ==================== */
.btn-memphis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border: 3px solid var(--memphis-black);
    border-radius: var(--border-radius);
    transition: all 0.15s ease;
    cursor: pointer;
    text-decoration: none;
}

.btn-memphis:hover {
    transform: translate(2px, 2px);
}

.btn-memphis:active {
    transform: translate(4px, 4px);
    box-shadow: none !important;
}

/* Button Variants */
.btn-pink {
    background-color: var(--memphis-pink);
    color: var(--memphis-black);
    box-shadow: var(--shadow-black);
}

.btn-pink:hover {
    box-shadow: 2px 2px 0 var(--memphis-black);
}

.btn-teal {
    background-color: var(--memphis-teal);
    color: var(--memphis-black);
    box-shadow: var(--shadow-black);
}

.btn-teal:hover {
    box-shadow: 2px 2px 0 var(--memphis-black);
}

.btn-purple {
    background-color: var(--memphis-purple);
    color: var(--memphis-white);
    box-shadow: var(--shadow-black);
}

.btn-purple:hover {
    box-shadow: 2px 2px 0 var(--memphis-black);
}

.btn-yellow {
    background-color: var(--memphis-yellow);
    color: var(--memphis-black);
    box-shadow: var(--shadow-black);
}

.btn-yellow:hover {
    box-shadow: 2px 2px 0 var(--memphis-black);
}

.btn-outline {
    background-color: var(--memphis-white);
    color: var(--memphis-black);
    box-shadow: var(--shadow-teal);
}

.btn-outline:hover {
    box-shadow: 2px 2px 0 var(--memphis-teal);
}

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ==================== CARDS ==================== */
.card-memphis {
    background: var(--memphis-white);
    border: 3px solid var(--memphis-black);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-black);
    transition: all 0.2s ease;
}

.card-memphis:hover {
    transform: translateY(-4px);
    box-shadow: 6px 6px 0 var(--memphis-black);
}

/* Card with accent stripe */
.card-accent {
    position: relative;
    overflow: hidden;
}

.card-accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: repeating-linear-gradient(
        90deg,
        var(--memphis-pink),
        var(--memphis-pink) 33.33%,
        var(--memphis-yellow) 33.33%,
        var(--memphis-yellow) 66.66%,
        var(--memphis-teal) 66.66%,
        var(--memphis-teal) 100%
    );
}

/* Color-specific accent stripes */
.card-accent-pink::before {
    background: var(--memphis-pink);
}

.card-accent-teal::before {
    background: var(--memphis-teal);
}

.card-accent-purple::before {
    background: var(--memphis-purple);
}

.card-accent-yellow::before {
    background: var(--memphis-yellow);
}

/* ==================== BADGES ==================== */
.badge-memphis {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid var(--memphis-black);
    border-radius: var(--border-radius-pill);
}

.badge-pink {
    background-color: var(--memphis-pink-light);
    color: var(--memphis-black);
}

.badge-teal {
    background-color: var(--memphis-teal-light);
    color: var(--memphis-black);
}

.badge-purple {
    background-color: var(--memphis-purple);
    color: var(--memphis-white);
}

.badge-yellow {
    background-color: var(--memphis-yellow-light);
    color: var(--memphis-black);
}

.badge-coral {
    background-color: var(--memphis-coral);
    color: var(--memphis-black);
}

/* ==================== FORMS ==================== */
.input-memphis {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    background: var(--memphis-white);
    border: 3px solid var(--memphis-black);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-teal);
    transition: all 0.15s ease;
}

.input-memphis:focus {
    outline: none;
    border-color: var(--memphis-pink);
    box-shadow: var(--shadow-pink);
}

.input-memphis::placeholder {
    color: var(--memphis-gray);
}

/* Search input */
.search-memphis {
    border-radius: var(--border-radius-pill);
    padding-left: 2.5rem;
}

/* ==================== NAVIGATION ==================== */
.nav-link-memphis {
    position: relative;
    padding: 0.5rem 1rem;
    font-weight: 500;
    color: var(--memphis-black);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all 0.15s ease;
}

.nav-link-memphis:hover {
    background-color: var(--memphis-yellow-light);
}

.nav-link-memphis.active {
    background-color: var(--memphis-yellow);
}

/* ==================== SECTION TITLE ==================== */
.section-title {
    position: relative;
    display: inline-block;
    font-weight: 800;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--memphis-pink), var(--memphis-teal), var(--memphis-yellow));
    border-radius: 2px;
}

/* ==================== AVATAR ==================== */
.avatar-memphis {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--memphis-pink), var(--memphis-purple));
    color: var(--memphis-white);
    border: 3px solid var(--memphis-black);
    border-radius: 50%;
}

.avatar-memphis-sm {
    width: 36px;
    height: 36px;
    font-size: 0.875rem;
}

.avatar-memphis-lg {
    width: 64px;
    height: 64px;
    font-size: 1.5rem;
}

/* ==================== PROGRESS BAR ==================== */
.progress-memphis {
    height: 24px;
    background: var(--memphis-cream);
    border: 3px solid var(--memphis-black);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.progress-bar-memphis {
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        var(--memphis-teal),
        var(--memphis-teal) 10px,
        var(--memphis-teal-light) 10px,
        var(--memphis-teal-light) 20px
    );
    transition: width 0.3s ease;
}

/* ==================== ACCORDION ==================== */
.accordion-memphis {
    border: 3px solid var(--memphis-black);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.accordion-header-memphis {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    font-weight: 600;
    background: var(--memphis-white);
    cursor: pointer;
    transition: background 0.15s ease;
}

.accordion-header-memphis:hover {
    background: var(--memphis-cream);
}

.accordion-content-memphis {
    padding: 1rem 1.25rem;
    background: var(--memphis-white);
    border-top: 2px solid var(--memphis-black);
}

/* ==================== BLOCKQUOTE ==================== */
.blockquote-memphis {
    padding: 1.5rem;
    background: var(--memphis-white);
    border-left: 6px solid var(--memphis-pink);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    box-shadow: var(--shadow-sm);
}

/* ==================== CODE BLOCKS ==================== */
.code-memphis {
    padding: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    background: var(--memphis-black);
    color: var(--memphis-cream);
    border: 3px solid var(--memphis-black);
    border-radius: var(--border-radius);
    overflow-x: auto;
}

.code-inline-memphis {
    padding: 0.125rem 0.375rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875em;
    background: var(--memphis-yellow-light);
    border: 2px solid var(--memphis-black);
    border-radius: 4px;
}

/* ==================== DIVIDER ==================== */
.divider-memphis {
    height: 4px;
    background: linear-gradient(90deg, var(--memphis-pink), var(--memphis-teal), var(--memphis-yellow), var(--memphis-purple));
    border-radius: 2px;
}

/* ==================== UTILITIES ==================== */
.shadow-memphis {
    box-shadow: var(--shadow-black);
}

.shadow-memphis-pink {
    box-shadow: var(--shadow-pink);
}

.shadow-memphis-teal {
    box-shadow: var(--shadow-teal);
}

.shadow-memphis-purple {
    box-shadow: var(--shadow-purple);
}

.border-memphis {
    border: 3px solid var(--memphis-black);
}

.rounded-memphis {
    border-radius: var(--border-radius);
}

.rounded-memphis-lg {
    border-radius: var(--border-radius-lg);
}

.rounded-memphis-pill {
    border-radius: var(--border-radius-pill);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .btn-memphis {
        padding: 0.625rem 1.25rem;
    }

    .card-memphis {
        box-shadow: 3px 3px 0 var(--memphis-black);
    }

    .card-memphis:hover {
        transform: translateY(-2px);
        box-shadow: 4px 4px 0 var(--memphis-black);
    }
}