/* HEIC2JPG Design Tokens */
/* モダンなデザインシステムを実現するCSS変数 */

:root {
    /* ========== Colors ========== */
    /* Primary - Slate Blue（落ち着いた青灰色・プロフェッショナル） */
    --color-primary: #45596D;
    --color-primary-dark: #3A4A5C;
    --color-primary-light: #5C7189;
    --color-primary-bg: #E8EDF2;

    /* Success - Emerald（プライバシー保護・安全性） */
    --color-success: #10B981;
    --color-success-dark: #059669;
    --color-success-light: #34D399;
    --color-success-bg: #D1FAE5;

    /* Warning */
    --color-warning: #F59E0B;
    --color-warning-dark: #D97706;
    --color-warning-light: #FBBF24;
    --color-warning-bg: #FEF3C7;

    /* Danger */
    --color-danger: #EF4444;
    --color-danger-dark: #DC2626;
    --color-danger-light: #F87171;
    --color-danger-bg: #FEE2E2;

    /* Neutral - Gray Scale */
    --color-bg: #F9FAFB;
    --color-bg-alt: #F3F4F6;
    --color-surface: #FFFFFF;
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;

    /* Text */
    --color-text-primary: #111827;
    --color-text-secondary: #6B7280;
    --color-text-tertiary: #9CA3AF;
    --color-text-inverse: #FFFFFF;

    /* Gradients - Slate Blue theme */
    --gradient-primary: linear-gradient(135deg, #45596D 0%, #3A4A5C 100%);
    --gradient-success: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --gradient-header: linear-gradient(135deg, #45596D 0%, #3A4A5C 100%);

    /* ========== Spacing ========== */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* ========== Border Radius ========== */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* ========== Shadows ========== */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);

    /* ========== Typography ========== */
    /* 日本語優先のフォントスタック */
    --font-sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI",
                 "Meiryo", -apple-system, BlinkMacSystemFont, "Segoe UI",
                 system-ui, sans-serif;
    --font-mono: "SF Mono", "Monaco", "Inconsolata", "Fira Mono",
                 "Droid Sans Mono", "Source Code Pro", monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */

    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;

    /* ========== Transitions ========== */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* ========== Z-Index ========== */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;

    /* ========== Glassmorphism ========== */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-blur: blur(10px);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    /* ========== Component-specific Colors ========== */
    /* Drop Zone - Slate Blue theme */
    --drop-zone-bg: rgba(69, 89, 109, 0.05);
    --drop-zone-bg-hover: rgba(69, 89, 109, 0.1);
    --drop-zone-bg-active: rgba(69, 89, 109, 0.15);
    --drop-zone-shadow-active: rgba(69, 89, 109, 0.1);

    /* Button Effects - Slate Blue theme */
    --btn-ripple: rgba(255, 255, 255, 0.3);
    --btn-ripple-dark: rgba(69, 89, 109, 0.2);

    /* Hero Section */
    --hero-overlay: rgba(255, 255, 255, 0.1);
    --hero-badge-bg: rgba(255, 255, 255, 0.2);
    --hero-badge-border: rgba(255, 255, 255, 0.3);
    --hero-feature-bg: rgba(255, 255, 255, 0.15);
    --hero-feature-border: rgba(255, 255, 255, 0.2);
    --hero-feature-bg-hover: rgba(255, 255, 255, 0.25);
    --hero-feature-shimmer: rgba(255, 255, 255, 0.2);

    /* Interactive Elements */
    --interactive-overlay: rgba(255, 255, 255, 0.2);
    --interactive-overlay-hover: rgba(255, 255, 255, 0.3);
    --touch-feedback: rgba(0, 0, 0, 0.1);

    /* ========== Touch Target Sizes ========== */
    --touch-target-min: 44px;
}

/* ダークモード - 手動切り替え対応 */
[data-theme="dark"] {
    /* Background Colors - コントラスト改善 */
    --color-bg: #0F172A;
    --color-bg-alt: #1E293B;
    --color-surface: #1E293B;
    --color-border: #475569;
    --color-border-light: #334155;

    /* Text Colors - 読みやすさ向上 */
    --color-text-primary: #F8FAFC;
    --color-text-secondary: #E2E8F0;
    --color-text-tertiary: #CBD5E1;
    --color-text-inverse: #0F172A;

    /* Primary - Slate Blue (brighter for dark mode visibility) */
    --color-primary: #7A91AA;
    --color-primary-dark: #5C7189;
    --color-primary-light: #98ADBF;
    --color-primary-bg: #2A3744;

    /* Success - Brighter for dark mode */
    --color-success: #34D399;
    --color-success-dark: #10B981;
    --color-success-light: #6EE7B7;
    --color-success-bg: #064E3B;

    /* Warning - Adjusted for dark mode */
    --color-warning: #FBBF24;
    --color-warning-dark: #F59E0B;
    --color-warning-light: #FCD34D;
    --color-warning-bg: #78350F;

    /* Danger - Adjusted for dark mode */
    --color-danger: #F87171;
    --color-danger-dark: #EF4444;
    --color-danger-light: #FCA5A5;
    --color-danger-bg: #7F1D1D;

    /* Gradients - Slate Blue (brighter for dark mode) */
    --gradient-primary: linear-gradient(135deg, #7A91AA 0%, #98ADBF 100%);
    --gradient-success: linear-gradient(135deg, #34D399 0%, #10B981 100%);
    --gradient-header: linear-gradient(135deg, #7A91AA 0%, #5C7189 100%);

    /* Glassmorphism - Dark variant */
    --glass-bg: rgba(30, 41, 59, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);

    /* Shadows - Darker for dark mode */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.6);

    /* Component-specific Colors - Dark mode */
    /* Drop Zone - Slate Blue (brighter for visibility) */
    --drop-zone-bg: rgba(122, 145, 170, 0.12);
    --drop-zone-bg-hover: rgba(122, 145, 170, 0.18);
    --drop-zone-bg-active: rgba(122, 145, 170, 0.25);
    --drop-zone-shadow-active: rgba(122, 145, 170, 0.3);

    /* Button Effects - Slate Blue (adjusted for dark mode) */
    --btn-ripple: rgba(255, 255, 255, 0.15);
    --btn-ripple-dark: rgba(122, 145, 170, 0.3);

    /* Hero Section - Darker overlays for dark mode */
    --hero-overlay: rgba(255, 255, 255, 0.05);
    --hero-badge-bg: rgba(255, 255, 255, 0.1);
    --hero-badge-border: rgba(255, 255, 255, 0.15);
    --hero-feature-bg: rgba(255, 255, 255, 0.08);
    --hero-feature-border: rgba(255, 255, 255, 0.12);
    --hero-feature-bg-hover: rgba(255, 255, 255, 0.15);
    --hero-feature-shimmer: rgba(255, 255, 255, 0.1);

    /* Interactive Elements - Lighter for dark mode */
    --interactive-overlay: rgba(255, 255, 255, 0.1);
    --interactive-overlay-hover: rgba(255, 255, 255, 0.15);
    --touch-feedback: rgba(255, 255, 255, 0.1);
}

/* 自動モード - システム設定に従う */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]):not([data-theme="dark"]) {
        /* Background Colors - コントラスト改善 */
        --color-bg: #0F172A;
        --color-bg-alt: #1E293B;
        --color-surface: #1E293B;
        --color-border: #475569;
        --color-border-light: #334155;

        /* Text Colors - 読みやすさ向上 */
        --color-text-primary: #F8FAFC;
        --color-text-secondary: #E2E8F0;
        --color-text-tertiary: #CBD5E1;
        --color-text-inverse: #0F172A;

        /* Primary - Slate Blue (brighter for dark mode visibility) */
        --color-primary: #7A91AA;
        --color-primary-dark: #5C7189;
        --color-primary-light: #98ADBF;
        --color-primary-bg: #2A3744;

        /* Success - Brighter for dark mode */
        --color-success: #34D399;
        --color-success-dark: #10B981;
        --color-success-light: #6EE7B7;
        --color-success-bg: #064E3B;

        /* Warning - Adjusted for dark mode */
        --color-warning: #FBBF24;
        --color-warning-dark: #F59E0B;
        --color-warning-light: #FCD34D;
        --color-warning-bg: #78350F;

        /* Danger - Adjusted for dark mode */
        --color-danger: #F87171;
        --color-danger-dark: #EF4444;
        --color-danger-light: #FCA5A5;
        --color-danger-bg: #7F1D1D;

        /* Gradients - Slate Blue (brighter for dark mode) */
        --gradient-primary: linear-gradient(135deg, #7A91AA 0%, #98ADBF 100%);
        --gradient-success: linear-gradient(135deg, #34D399 0%, #10B981 100%);
        --gradient-header: linear-gradient(135deg, #7A91AA 0%, #5C7189 100%);

        /* Glassmorphism - Dark variant */
        --glass-bg: rgba(30, 41, 59, 0.8);
        --glass-border: rgba(255, 255, 255, 0.1);
        --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);

        /* Shadows - Darker for dark mode */
        --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
        --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
        --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.6);

        /* Component-specific Colors - Dark mode */
        /* Drop Zone - Slate Blue (brighter for visibility) */
        --drop-zone-bg: rgba(122, 145, 170, 0.12);
        --drop-zone-bg-hover: rgba(122, 145, 170, 0.18);
        --drop-zone-bg-active: rgba(122, 145, 170, 0.25);
        --drop-zone-shadow-active: rgba(122, 145, 170, 0.3);

        /* Button Effects - Slate Blue (adjusted for dark mode) */
        --btn-ripple: rgba(255, 255, 255, 0.15);
        --btn-ripple-dark: rgba(122, 145, 170, 0.3);

        /* Hero Section - Darker overlays for dark mode */
        --hero-overlay: rgba(255, 255, 255, 0.05);
        --hero-badge-bg: rgba(255, 255, 255, 0.1);
        --hero-badge-border: rgba(255, 255, 255, 0.15);
        --hero-feature-bg: rgba(255, 255, 255, 0.08);
        --hero-feature-border: rgba(255, 255, 255, 0.12);
        --hero-feature-bg-hover: rgba(255, 255, 255, 0.15);
        --hero-feature-shimmer: rgba(255, 255, 255, 0.1);

        /* Interactive Elements - Lighter for dark mode */
        --interactive-overlay: rgba(255, 255, 255, 0.1);
        --interactive-overlay-hover: rgba(255, 255, 255, 0.15);
        --touch-feedback: rgba(255, 255, 255, 0.1);
    }
}

/* 明示的なライトモード */
[data-theme="light"] {
    /* すべてのライトモード変数を維持（デフォルト値を使用） */
}