/* ===================== Clarivent – Design System ===================== */
:root {
    --text-main: #2B2A2A;
    --bg-gradient-start: #5A7ACD;
    --bg-gradient-end: #FEB05D;
    --glass-bg: rgba(245, 242, 242, 0.4);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-item: rgba(245, 242, 242, 0.6);
    --glass-item-hover: rgba(245, 242, 242, 0.8);
    --active-bg: rgba(90, 122, 205, 0.2);
    --accent: #5A7ACD;
    --active-blur: rgba(90, 122, 205, 0.1);
    --input-bg: rgba(255, 255, 255, 0.4);
    --input-border: rgba(255, 255, 255, 0.5);
    --card-shadow: rgba(0, 0, 0, 0.25);
}

html.dark {
    --text-main: #E2E8F0;
    --bg-gradient-start: #0F172A;
    --bg-gradient-end: #1E293B;
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-item: rgba(30, 41, 59, 0.6);
    --glass-item-hover: rgba(30, 41, 59, 0.8);
    --active-bg: rgba(56, 189, 248, 0.15);
    --accent: #38BDF8;
    --active-blur: rgba(56, 189, 248, 0.1);
    --input-bg: rgba(15, 23, 42, 0.3);
    --input-border: rgba(255, 255, 255, 0.1);
    --card-shadow: rgba(0, 0, 0, 0.5);
}

body {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-main);
    transition: background 0.5s ease, color 0.5s ease;
}

/* ===================== Glass Cards ===================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 25px 50px -12px var(--card-shadow);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.item-row {
    background: var(--glass-item);
    backdrop-filter: blur(8px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 3px solid var(--accent);
}

.item-row:hover {
    transform: translateY(-2px);
    background: var(--glass-item-hover);
    box-shadow: 0 8px 24px -4px var(--card-shadow);
}

/* ===================== Item Row Controls ===================== */
.qty-btn {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.625rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 1;
}
.qty-btn:active {
    transform: scale(0.9);
}
.qty-btn-minus {
    background: var(--input-bg);
    color: var(--text-main);
    border: 1px solid var(--input-border);
}
.qty-btn-minus:hover {
    background: var(--glass-item-hover);
    border-color: var(--accent);
}
.qty-btn-plus {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 2px 8px rgba(90, 122, 205, 0.3);
}
html.dark .qty-btn-plus {
    box-shadow: 0 2px 8px rgba(56, 189, 248, 0.3);
}
.qty-btn-plus:hover {
    opacity: 0.85;
    box-shadow: 0 4px 12px rgba(90, 122, 205, 0.4);
}
html.dark .qty-btn-plus:hover {
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.4);
}

.qty-input {
    width: 3rem;
    text-align: center;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 0.625rem;
    padding: 0.25rem 0.125rem;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s;
}
.qty-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--active-blur);
}

.unit-select-inline {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: var(--active-bg);
    border: 1px solid transparent;
    border-radius: 0.5rem;
    padding: 0.2rem 1.4rem 0.2rem 0.5rem;
    cursor: pointer;
    outline: none;
    transition: all 0.2s;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%235A7ACD' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.3rem center;
    background-size: 0.6rem;
}
html.dark .unit-select-inline {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2338BDF8' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.3rem center;
    background-size: 0.6rem;
}
.unit-select-inline:hover {
    border-color: var(--accent);
    background-color: var(--active-blur);
}

.delete-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    border-radius: 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #ef4444;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.15);
    cursor: pointer;
    transition: all 0.2s;
}
.delete-btn:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
    color: #dc2626;
}
.delete-btn:active {
    transform: scale(0.95);
}

/* ===================== Privacy Footer ===================== */
.privacy-footer {
    border-top: 1px solid var(--glass-border);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}
.privacy-footer p {
    font-size: 0.7rem;
    line-height: 1.6;
    color: var(--text-main);
    opacity: 0.4;
}
.privacy-footer .privacy-title {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.35;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* ===================== Select (Dropdown) ===================== */
select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%232B2A2A' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 0.8rem;
    padding-right: 1.75rem !important;
    background-color: transparent;
    border: none;
}
html.dark select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23E2E8F0' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
}

/* ===================== Number Input ===================== */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* ===================== Toast Notifications ===================== */
.toast-container {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 9999;
}

.toast-message {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
    border-radius: 1.25rem;
    padding: 1rem 1.25rem;
    min-width: 260px;
    max-width: 340px;
    box-shadow: 0 12px 32px var(--card-shadow);
    animation: toastIn 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
    font-size: 0.875rem;
}

.toast-time {
    font-size: 0.7rem;
    opacity: 0.6;
    margin-top: 0.3rem;
    font-weight: 500;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(20px) scale(0.95); }
    to   { opacity: 1; transform: translateX(0) scale(1); }
}

/* ===================== Calendar ===================== */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}
.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
    transition: all 0.2s;
    position: relative;
    cursor: pointer;
}
.calendar-day:hover:not(.empty) {
    background-color: var(--active-bg);
}
.calendar-day.active {
    background-color: var(--accent);
    color: white;
    box-shadow: 0 4px 10px var(--card-shadow);
    font-weight: bold;
}
.calendar-day.selected {
    border: 2px solid var(--accent);
    background-color: var(--active-blur);
}
.calendar-day.active.selected {
    background-color: var(--accent);
}
.calendar-day.empty {
    color: transparent;
    pointer-events: none;
}

/* ===================== Verification Code Inputs ===================== */
.code-input {
    width: 3rem;
    height: 3.5rem;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 0.75rem;
    border: 2px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.code-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--active-blur);
}