*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    min-height: 100vh;
    margin: 0;
    padding: 0;
    font-family: 'Rubik', sans-serif;
    background-color: #FFF8F0;
    color: #432000;
    user-select: none;
}

/* ── Auth Screen ────────────────────────────────────── */
.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    max-width: 450px;
    margin: auto;
    text-align: center;
    gap: 12px;
    padding: 20px;
}

.container h1 { margin: 5px 0; }
.container p  { opacity: 0.8; margin-bottom: 10px; }

.logo { width: 140px; margin-bottom: 10px; }

#login-btn,
#yahoo-login-btn {
    width: 100%;
    max-width: 320px;
}

/* ── Base Elements ──────────────────────────────────── */
input {
    color: #432000;
    background-color: #FFFFFF;
    border: 1.5px solid #E8D8C8;
    padding: 13px 16px;
    border-radius: 10px;
    font-size: 17px;
    font-family: 'Rubik', sans-serif;
    outline: none;
    transition: border-color 0.2s;
}

input:focus {
    border-color: #E67E22;
}

button {
    color: white;
    background-color: #E67E22;
    border: none;
    padding: 14px 20px;
    border-radius: 12px;
    font-size: 17px;
    font-family: 'Rubik', sans-serif;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.15s;
}

button:hover {
    background-color: #D35400;
    transform: translateY(-1px);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

ul li {
    font-size: 17px;
    background-color: #FFFDF8;
    padding: 14px 18px;
    border-radius: 10px;
    flex-grow: 1;
    text-align: center;
    box-shadow: 0 1px 4px rgba(0,0,0,0.12);
    cursor: pointer;
    transition: background-color 0.15s;
}

ul li:hover {
    background-color: #FFECC7;
}

/* ── App Screen ─────────────────────────────────────── */
#app-screen {
    display: none;
    min-height: 100vh;
    background-color: #FFF8F0;
}

/* Top bar */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.07);
    position: sticky;
    top: 0;
    z-index: 100;
}

.title-block {
    flex: 1;
    text-align: center;
}

.title-block h2 {
    margin: 0;
    font-size: 19px;
}

.top-bar-spacer {
    width: 44px; /* mirrors .menu-btn width so the title stays centred */
}

.menu-btn {
    width: auto;
    max-width: none;
    background: transparent;
    color: #432000;
    font-size: 22px;
    padding: 8px 10px;
    border-radius: 8px;
    line-height: 1;
}

.menu-btn:hover {
    background-color: #FFF0E0;
    transform: none;
}

/* Shopping container */
.shopping-container {
    max-width: 680px;
    margin: 30px auto;
    padding: 25px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
}

/* Input + button sit in a flex row */
.input-row {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    align-items: stretch;
}

.input-row input {
    flex: 1;
    min-width: 0; /* prevents overflow in flex */
    text-align: left;
}

.input-row button {
    flex-shrink: 0;
    white-space: nowrap;
}

#loading-message {
    text-align: center;
    opacity: 0.55;
    font-size: 15px;
    margin: 8px 0;
}

/* Empty state – inside the <ul> but visually neutral */
.empty-state {
    flex-grow: 0;
    width: 100%;
    text-align: center;
    opacity: 0.45;
    cursor: default;
    background: transparent !important;
    box-shadow: none !important;
    padding: 28px 0 !important;
    font-size: 15px;
    pointer-events: none;
}

/* ── Overlay  (single, clean — no duplicate z-index) ── */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 900;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.overlay.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* ── Drawer ─────────────────────────────────────────── */
.drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 270px;
    height: 100%;
    background: white;
    z-index: 1000;
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: 4px 0 25px rgba(0,0,0,0.12);
    overflow-y: auto;
}

.drawer.open {
    transform: translateX(0);
}

.drawer-logo {
    width: 52px;
    margin-bottom: 10px;
}

.drawer-header {
    margin-bottom: 16px;
}

#user-name {
    font-weight: 500;
    font-size: 16px;
    margin: 0 0 3px 0;
}

#user-email {
    font-size: 13px;
    opacity: 0.6;
    margin: 0;
}

.drawer hr {
    border: none;
    border-top: 1px solid #F0E4D8;
    margin: 0 0 14px 0;
}

/* Drawer nav buttons */
.drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.drawer-nav button {
    width: 100%;
    max-width: none;
    background-color: #FFF8F0;
    color: #432000;
    font-size: 15px;
    padding: 12px 14px;
    text-align: left;
    border-radius: 10px;
    border: 1px solid #F0E4D8;
}

.drawer-nav button:hover {
    background-color: #FFECC7;
    transform: none;
    border-color: #E8C8A0;
}

/* Logout button – distinct destructive style */
.drawer-bottom {
    padding-top: 14px;
    border-top: 1px solid #F0E4D8;
    margin-top: 14px;
}

.drawer-bottom button {
    width: 100%;
    max-width: none;
    background-color: white;
    color: #C0392B;
    border: 1.5px solid #E0B8B2;
    font-size: 15px;
    padding: 12px;
}

.drawer-bottom button:hover {
    background-color: #FFF5F5;
    transform: none;
}

/* ── Edit Profile Modal ─────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.52);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal {
    background: white;
    border-radius: 16px;
    padding: 28px 24px;
    width: 100%;
    max-width: 390px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.18);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal h2 {
    margin: 0;
    font-size: 19px;
    color: #432000;
}

.modal-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: left;
}

.modal-field label {
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    opacity: 0.6;
}

.modal-field input {
    width: 100%;
    text-align: left;
    padding: 12px 14px;
    font-size: 16px;
}

.modal-field input:disabled {
    background-color: #F8F4F0;
    color: #998878;
    border-color: #EAD8C8;
    cursor: not-allowed;
}

.modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 4px;
}

.modal-actions button {
    flex: 1;
    max-width: none;
    font-size: 16px;
    padding: 12px;
}

.btn-secondary {
    background-color: white !important;
    color: #432000 !important;
    border: 1.5px solid #D8C8B8 !important;
}

.btn-secondary:hover {
    background-color: #FFF8F0 !important;
    transform: none !important;
}

/* ── Toast notification ─────────────────────────────── */
.toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #432000;
    color: white;
    padding: 12px 22px;
    border-radius: 10px;
    font-size: 14px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s, transform 0.25s;
    z-index: 3000;
    white-space: nowrap;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

#checkout-btn {
    width: 100%;
    margin-bottom: 20px;
    background: #27AE60;
}

#checkout-btn:hover {
    background: #1E8449;
}

#history-screen {
    min-height: 100vh;
}

.history-card {
    background: white;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.history-date {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 12px;
}

.history-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.history-tag {
    background: #FFF0E0;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 14px;
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 600px) {
    .shopping-container {
        margin: 15px;
        padding: 18px 15px;
    }

    .input-row {
        flex-direction: column;
    }

    .input-row input,
    .input-row button {
        width: 100%;
    }
}